Mercurial > hg > nginx-site
annotate xml/en/docs/njs/njs_api.xml @ 2211:660229c5c92f
Documented String.bytesFrom() method in njs.
author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Tue, 31 Jul 2018 16:41:06 +0300 |
parents | 6f9fd9677d1b |
children | c34a885b9d99 |
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1 <?xml version="1.0"?> |
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2 |
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3 <!-- |
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4 Copyright (C) Nginx, Inc. |
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5 --> |
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6 |
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7 <!DOCTYPE article SYSTEM "../../../../dtd/article.dtd"> |
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8 |
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9 <article name="njs API" |
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10 link="/en/docs/njs/njs_api.html" |
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11 lang="en" |
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12 rev="4"> |
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13 |
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14 <section id="summary"> |
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15 |
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16 <para> |
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17 <link doc="../njs_about.xml">njs</link> provides objects, methods and properties |
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18 for extending nginx functionality. |
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19 </para> |
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20 |
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21 </section> |
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22 |
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23 |
2176 | 24 <section id="core" name="Core"> |
25 | |
26 | |
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27 <section id="string" name="String"> |
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28 |
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29 <para> |
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30 There are two types of strings: |
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31 a <literal>Unicode string</literal> (default) and |
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32 a <literal>byte string</literal>. |
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33 </para> |
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34 |
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35 <para> |
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36 A <literal>Unicode string</literal> corresponds to an ECMAScript string |
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37 which contains Unicode characters. |
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38 </para> |
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39 |
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40 <para> |
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41 <literal>Byte strings</literal> contain a sequence of bytes. |
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42 They are used to serialize Unicode strings |
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43 to external data and deserialize from external sources. |
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44 For example, the <link id="string_toutf8">toUTF8()</link> method serializes |
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45 a Unicode string to a byte string using UTF8 encoding: |
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46 <example> |
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47 >> '£'.toUTF8().toString('hex') |
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48 c2a3 /* C2 A3 is the UTF8 representation of 00A3 ('£') code point */ |
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49 </example> |
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50 The <link id="string_tobytes">toBytes()</link> method serializes |
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51 a Unicode string with code points up to 255 into a byte string, |
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52 otherwise, <literal>null</literal> is returned: |
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53 <example> |
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54 >> '£'.toBytes().toString('hex') |
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55 a3 /* a3 is a byte equal to 00A3 ('£') code point */ |
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56 </example> |
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57 Only byte strings can be converted to different encodings. |
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58 For example, a string cannot be encoded to <literal>hex</literal> directly: |
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59 <example> |
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60 >> 'αβγδ'.toString('base64') |
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61 TypeError: argument must be a byte string |
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62 at String.prototype.toString (native) |
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63 at main (native) |
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64 </example> |
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65 To convert a Unicode string to hex, |
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66 first, it should be converted to a byte string and then to hex: |
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67 <example> |
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68 >> 'αβγδ'.toUTF8().toString('base64') |
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69 zrHOss6zzrQ= |
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70 </example> |
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71 |
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72 <list type="tag"> |
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73 |
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74 <tag-name id="string_bytesfrom"><literal>String.bytesFrom(<value>array</value> |
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75 | <value>string</value>, <value>encoding</value>)</literal></tag-name> |
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76 <tag-desc> |
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77 (njs specific) Creates a byte string either from an array that contains octets, |
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78 or from an encoded string (0.2.3). |
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79 The encoding can be |
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80 <literal>hex</literal>, |
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81 <literal>base64</literal>, and |
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82 <literal>base64url</literal>. |
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83 <example> |
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84 >> String.bytesFrom([0x62, 0x75, 0x66, 0x66, 0x65, 0x72]) |
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85 'buffer' |
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86 |
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87 >> String.bytesFrom('YnVmZmVy', 'base64') |
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88 'buffer' |
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89 </example> |
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90 </tag-desc> |
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91 |
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92 <tag-name><literal>String.fromCodePoint(<value>codePoint1</value>[, ...[, |
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93 <value>codePoint2</value>]])</literal></tag-name> |
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94 <tag-desc> |
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95 Returns a string from one or more Unicode code points. |
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96 <example> |
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97 >> String.fromCodePoint(97, 98, 99, 100) |
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98 abcd |
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99 </example> |
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100 </tag-desc> |
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101 |
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102 <tag-name><literal>String.prototype.concat(<value>string1</value>[, ..., |
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103 <value>stringN</value>])</literal></tag-name> |
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104 <tag-desc> |
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105 Returns a string that contains the concatenation of specified |
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106 <literal>strings</literal>. |
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107 <example> |
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108 >> "a".concat("b", "c") |
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109 abc |
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110 </example> |
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111 </tag-desc> |
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112 |
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113 <tag-name><literal>String.prototype.endsWith(<value>searchString</value>[, |
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114 <value>length</value>])</literal></tag-name> |
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115 <tag-desc> |
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116 Returns <literal>true</literal> if a string ends with the characters |
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117 of a specified string, otherwise <literal>false</literal>. |
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118 The optional <literal>length</literal> parameter is the the length of string. |
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119 If omitted, the default value is the length of the string. |
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120 <example> |
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121 >> 'abc'.endsWith('abc') |
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122 true |
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123 >> 'abca'.endsWith('abc') |
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124 false |
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125 </example> |
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126 </tag-desc> |
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127 |
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128 <tag-name><literal>String.prototype.fromBytes(<value>start</value>[, |
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129 <value>end</value>])</literal></tag-name> |
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130 <tag-desc> |
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131 (njs specific) Returns a new Unicode string from a byte string |
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132 where each byte is replaced with a corresponding Unicode code point. |
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133 </tag-desc> |
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134 |
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135 <tag-name><literal>String.prototype.fromUTF8(<value>start</value>[, |
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136 <value>end</value>])</literal></tag-name> |
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137 <tag-desc> |
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138 (njs specific) Converts a byte string containing a valid UTF8 string |
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139 into a Unicode string, |
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140 otherwise <literal>null</literal> is returned. |
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141 </tag-desc> |
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142 |
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143 <tag-name><literal>String.prototype.includes(<value>searchString</value>[, |
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144 <value>position</value>]))</literal></tag-name> |
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145 <tag-desc> |
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146 Returns <literal>true</literal> if a string is found within another string, |
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147 otherwise <literal>false</literal>. |
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148 The optional <literal>position</literal> parameter is the position |
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149 within the string at which to begin search for <literal>searchString</literal>. |
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150 Default value is 0. |
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151 <example> |
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152 >> 'abc'.includes('bc') |
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153 true |
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154 </example> |
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155 </tag-desc> |
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156 |
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157 <tag-name><literal>String.prototype.indexOf(<value>searchString</value>[, |
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158 <value>fromIndex</value>])</literal></tag-name> |
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159 <tag-desc> |
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160 Returns the position of the first occurrence |
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161 of the <literal>searchString</literal> |
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162 The search is started at <literal>fromIndex</literal>. |
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163 Returns <value>-1</value> if the value is not found. |
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164 The <literal>fromIndex</literal> is an integer, |
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165 default value is 0. |
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166 If <literal>fromIndex</literal> is lower than 0 |
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167 or greater than |
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168 <link id="string_length">String.prototype.length</link><value></value>, |
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169 the search starts at index <value>0</value> and |
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170 <value>String.prototype.length</value>. |
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171 <example> |
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172 >> 'abcdef'.indexOf('de', 2) |
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173 3 |
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174 </example> |
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175 </tag-desc> |
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176 |
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177 <tag-name><literal>String.prototype.lastIndexOf(<value>searchString</value>[, |
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178 <value>fromIndex</value>])</literal></tag-name> |
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179 <tag-desc> |
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180 Returns the position of the last occurrence |
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181 of the <literal>searchString</literal>, |
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182 searching backwards from <literal>fromIndex</literal>. |
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183 Returns <value>-1</value> if the value is not found. |
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184 If <literal>searchString</literal> is empty, |
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185 then <literal>fromIndex</literal> is returned. |
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186 <example> |
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187 >> "nginx".lastIndexOf("gi") |
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188 1 |
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189 </example> |
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190 </tag-desc> |
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191 |
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192 <tag-name id="string_length"><literal>String.prototype.length</literal></tag-name> |
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193 <tag-desc> |
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194 Returns the length of the string. |
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195 <example> |
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196 >> 'αβγδ'.length |
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197 4 |
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198 </example> |
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199 </tag-desc> |
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200 |
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201 <tag-name><literal>String.prototype.match([<value>regexp</value>])</literal></tag-name> |
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202 <tag-desc> |
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203 Matches a string against a <literal>regexp</literal>. |
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204 <example> |
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205 >> 'nginx'.match( /ng/i ) |
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206 ng |
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207 </example> |
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208 </tag-desc> |
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209 |
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210 <tag-name><literal>String.prototype.repeat(<value>number</value>)</literal></tag-name> |
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211 <tag-desc> |
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212 Returns a string |
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213 with the specified <literal>number</literal> of copies of the string. |
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214 <example> |
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215 >> 'abc'.repeat(3) |
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216 abcabcabc |
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217 </example> |
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218 </tag-desc> |
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219 |
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220 <tag-name><literal>String.prototype.replace([<value>regexp</value>|<value>string</value>[, |
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221 <value>string</value>|<value>function</value>]])</literal></tag-name> |
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222 <tag-desc> |
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223 Returns a new string with matches of a pattern |
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224 (<literal>string</literal> or a <literal>regexp</literal>) |
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225 replaced by a <literal>string</literal> or a <literal>function</literal>. |
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226 <example> |
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227 >> 'abcdefgh'.replace('d', 1) |
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228 abc1efgh |
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229 </example> |
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230 </tag-desc> |
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231 |
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232 <tag-name><literal>String.prototype.search([<value>regexp</value>])</literal></tag-name> |
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233 <tag-desc> |
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234 Searches for a string using a <literal>regexp</literal> |
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235 <example> |
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236 >> 'abcdefgh'.search('def') |
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237 3 |
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238 </example> |
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239 </tag-desc> |
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240 |
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241 <tag-name><literal>String.prototype.slice(<value>start</value>[, |
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242 <value>end</value>])</literal></tag-name> |
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243 <tag-desc> |
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244 Returns a new string containing a part of an |
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245 original string between <literal>start</literal> |
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246 and <literal>end</literal> or |
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247 from <literal>start</literal> to the end of the string. |
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248 <example> |
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249 >> 'abcdefghijklmno'.slice(NaN, 5) |
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250 abcde |
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251 </example> |
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252 </tag-desc> |
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253 |
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254 <tag-name><literal>String.prototype.startsWith(<value>searchString</value>[, |
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255 <value>position</value>])</literal></tag-name> |
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256 <tag-desc> |
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257 Returns <literal>true</literal> if a string begins with the characters |
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258 of a specified string, otherwise <literal>false</literal>. |
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259 The optional <literal>position</literal> parameter is the position |
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260 in this string at which to begin search for <literal>searchString</literal>. |
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261 Default value is 0. |
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262 <example> |
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263 >> 'abc'.startsWith('abc') |
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264 true |
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265 > 'aabc'.startsWith('abc') |
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266 false |
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267 </example> |
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268 </tag-desc> |
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269 |
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270 <tag-name><literal>String.prototype.substr(<value>start</value>[, |
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271 <value>length</value>])</literal></tag-name> |
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272 <tag-desc> |
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273 Returns the part of the string of the specified <literal>length</literal> |
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274 from <literal>start</literal> |
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275 or from <literal>start</literal> to the end of the string. |
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276 <example> |
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277 >> 'abcdefghijklmno'.substr(3, 5) |
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278 defgh |
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279 </example> |
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280 </tag-desc> |
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281 |
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282 <tag-name><literal>String.prototype.substring(<value>start</value>[, |
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283 <value>end</value>])</literal></tag-name> |
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284 <tag-desc> |
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285 Returns the part of the string between |
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286 <literal>start</literal> and <literal>end</literal> or |
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287 from <literal>start</literal> to the end of the string. |
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288 <example> |
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289 >> 'abcdefghijklmno'.substring(3, 5) |
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290 de |
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291 </example> |
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292 </tag-desc> |
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293 |
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294 <tag-name id="string_tobytes"><literal>String.prototype.toBytes(start[, |
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295 end])</literal></tag-name> |
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296 <tag-desc> |
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297 (njs specific) Serializes a Unicode string to a byte string. |
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298 Returns <literal>null</literal> if a character larger than 255 is |
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299 found in the string. |
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300 </tag-desc> |
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301 |
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302 <tag-name><literal>String.prototype.toLowerCase()</literal></tag-name> |
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303 <tag-desc> |
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304 Converts a string to lower case. |
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305 The method supports only simple Unicode folding. |
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306 <example> |
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307 >> 'ΑΒΓΔ'.toLowerCase() |
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308 αβγδ |
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309 </example> |
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310 </tag-desc> |
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311 |
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312 <tag-name><literal>String.prototype.toString([<value>encoding</value>])</literal></tag-name> |
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313 <tag-desc> |
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314 <para> |
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315 If no <literal>encoding</literal> is specified, |
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316 returns a specified Unicode string or byte string as in ECMAScript. |
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317 </para> |
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318 |
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319 <para> |
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320 (njs specific) If <literal>encoding</literal> is specified, |
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321 encodes a <link id="string_tobytes">byte string</link> to |
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322 <literal>hex</literal>, |
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323 <literal>base64</literal>, or |
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324 <literal>base64url</literal>. |
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325 </para> |
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326 <example> |
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327 >> 'αβγδ'.toUTF8().toString('base64url') |
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328 zrHOss6zzrQ |
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329 </example> |
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330 </tag-desc> |
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331 |
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332 <tag-name><literal>String.prototype.toUpperCase()</literal></tag-name> |
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333 <tag-desc> |
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334 Converts a string to upper case. |
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335 The method supports only simple Unicode folding. |
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336 <example> |
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337 >> 'αβγδ'.toUpperCase() |
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338 ΑΒΓΔ |
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339 </example> |
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340 </tag-desc> |
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341 |
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342 <tag-name id="string_toutf8"><literal>String.prototype.toUTF8(<value>start</value>[, |
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343 <value>end</value>])</literal></tag-name> |
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344 <tag-desc> |
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345 (njs specific) Serializes a Unicode string |
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346 to a byte string using UTF8 encoding. |
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347 <example> |
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348 >> 'αβγδ'.toUTF8().length |
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349 8 |
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350 >> 'αβγδ'.length |
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351 4 |
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352 </example> |
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353 </tag-desc> |
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354 |
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355 <tag-name><literal>String.prototype.trim()</literal></tag-name> |
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356 <tag-desc> |
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357 Removes whitespaces from both ends of a string. |
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358 <example> |
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359 >> ' abc '.trim() |
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360 abc |
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361 </example> |
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362 </tag-desc> |
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363 |
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364 <tag-name><literal>String.prototype.split(([<value>string</value>|<value>regexp</value>[, |
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365 <value>limit</value>]]))</literal></tag-name> |
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366 <tag-desc> |
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367 Returns match of a string against a <literal>regexp</literal>. |
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368 The optional <literal>limit</literal> parameter is an integer that specifies |
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369 a limit on the number of splits to be found. |
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370 <example> |
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371 >> 'abc'.split('') |
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372 a,b,c |
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373 </example> |
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374 </tag-desc> |
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375 |
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376 <tag-name id="encodeuri"><literal>encodeURI(<value>URI</value>)</literal></tag-name> |
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377 <tag-desc> |
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378 encodes a URI by replacing each instance of certain characters by |
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379 one, two, three, or four escape sequences |
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380 representing the UTF-8 encoding of the character |
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381 <example> |
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382 >> encodeURI('012αβγδ') |
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383 012%CE%B1%CE%B2%CE%B3%CE%B4 |
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384 </example> |
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385 </tag-desc> |
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386 |
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387 <tag-name><literal>encodeURIComponent(<value>encodedURIString</value>)</literal></tag-name> |
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388 <tag-desc> |
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389 Encodes a URI by replacing each instance of certain characters |
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390 by one, two, three, or four escape sequences |
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391 representing the UTF-8 encoding of the character. |
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392 <example> |
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393 >> encodeURIComponent('[@?=') |
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394 %5B%40%3F%3D |
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395 </example> |
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396 </tag-desc> |
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397 |
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398 <tag-name><literal>decodeURI(<value>encodedURI</value>)</literal></tag-name> |
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399 <tag-desc> |
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400 Decodes a previously <link id="encodeuri">encoded</link> URI. |
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401 <example> |
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402 >> decodeURI('012%CE%B1%CE%B2%CE%B3%CE%B4') |
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403 012αβγδ |
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404 </example> |
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405 </tag-desc> |
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406 |
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407 <tag-name><literal>decodeURIComponent(<value>decodedURIString</value>)</literal></tag-name> |
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408 <tag-desc> |
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409 Decodes an encoded component of a previously encoded URI. |
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410 <example> |
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411 >> decodeURIComponent('%5B%40%3F%3D') |
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412 [@?= |
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413 </example> |
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414 </tag-desc> |
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415 |
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416 </list> |
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417 </para> |
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418 |
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419 </section> |
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420 |
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421 |
2176 | 422 <section id="core_json" name="JSON"> |
423 | |
424 <para> | |
425 The <literal>JSON</literal> object (ES 5.1) provides functions | |
426 to convert njs values to and from JSON format. | |
427 <list type="tag"> | |
428 | |
429 <tag-name><literal>JSON.parse(<value>string</value>[, | |
430 <value>reviver</value>])</literal></tag-name> | |
431 <tag-desc> | |
432 Converts a <literal>string</literal> that represents JSON data | |
433 into an njs object (<literal>{...}</literal>) or | |
434 array (<literal>[...]</literal>). | |
435 The optional <literal>reviver</literal> parameter is a function (key, value) | |
436 that will be called for each (key,value) pair and can transform the value. | |
437 </tag-desc> | |
438 | |
439 <tag-name><literal>JSON.stringify(<value>value</value>[, | |
440 <value>replacer</value>] [, <value>space</value>])</literal></tag-name> | |
441 <tag-desc> | |
442 Converts an njs object back to JSON. | |
443 The obligatory <literal>value</literal> parameter is generally a JSON | |
444 <literal>object</literal> or <literal>array</literal> that will be converted. | |
445 If the value has a <literal>toJSON()</literal> method, | |
446 it defines how the object will be serialized. | |
447 The optional <literal>replacer</literal> parameter is | |
448 a <literal>function</literal> or <literal>array</literal> | |
449 that transforms results. | |
450 The optional <literal>space</literal> parameter is | |
451 a <literal>string</literal> or <literal>number</literal>. | |
452 If it is a <literal>number</literal>, | |
453 it indicates the number of white spaces placed before a result | |
454 (no more than 10). | |
455 If it is a <literal>string</literal>, | |
456 it is used as a white space (or first 10 characters of it). | |
457 If omitted or is <literal>null</literal>, no white space is used. | |
458 </tag-desc> | |
459 </list> | |
460 </para> | |
461 | |
462 <para> | |
463 <example> | |
464 >> var json = JSON.parse('{"a":1, "b":true}') | |
465 >> json.a | |
466 1 | |
467 | |
468 >> JSON.stringify(json) | |
469 {"a":1,"b":true} | |
470 | |
471 >> JSON.stringify(json, undefined, 1) | |
472 { | |
473 "a": 1, | |
474 "b": true | |
475 } | |
476 | |
477 >> JSON.stringify({ x: [10, undefined, function(){}] }) | |
478 {"x":[10,null,null]} | |
479 | |
480 >> JSON.stringify({"a":1, "toJSON": function() {return "xxx"}}) | |
481 "xxx" | |
482 | |
483 # Example with function replacer | |
484 | |
485 >> function replacer(key, value) {return (typeof value === 'string') ? undefined : value} | |
486 >>JSON.stringify({a:1, b:"b", c:true}, replacer) | |
487 {"a":1,"c":true} | |
488 </example> | |
489 </para> | |
490 | |
491 </section> | |
492 | |
2177 | 493 |
494 <section id="crypto" name="Crypto"> | |
495 | |
496 <para> | |
497 The Crypto module provides cryptographic functionality support. | |
498 The Crypto module object is returned by <literal>require('crypto')</literal>. | |
499 </para> | |
500 | |
501 <para> | |
502 <list type="tag"> | |
503 | |
504 <tag-name><literal>crypto.createHash(<value>algorithm</value>)</literal></tag-name> | |
505 <tag-desc> | |
506 Creates and returns a <link id="crypto_hash">Hash</link> object | |
507 that can be used to generate hash digests | |
508 using the given <value>algorithm</value>. | |
509 The algorighm can be | |
510 <literal>md5</literal>, | |
511 <literal>sha1</literal>, and | |
512 <literal>sha256</literal>. | |
513 </tag-desc> | |
514 | |
515 <tag-name><literal>crypto.createHmac(<value>algorithm</value>, | |
516 <value>secret key</value>)</literal></tag-name> | |
517 <tag-desc> | |
518 Creates and returns an <link id="crypto_hmac">HMAC</link> object | |
519 that uses the given <value>algorithm</value> and <value>secret key</value>. | |
520 The algorighm can be | |
521 <literal>md5</literal>, | |
522 <literal>sha1</literal>, and | |
523 <literal>sha256</literal>. | |
524 </tag-desc> | |
525 | |
526 </list> | |
527 </para> | |
528 | |
529 | |
530 <section id="crypto_hash" name="Hash"> | |
531 | |
532 <para> | |
533 <list type="tag"> | |
534 | |
535 <tag-name><literal>hash.update(<value>data</value>)</literal></tag-name> | |
536 <tag-desc> | |
537 Updates the hash content with the given <value>data</value>. | |
538 </tag-desc> | |
539 | |
540 <tag-name><literal>hash.digest([<value>encoding</value>])</literal></tag-name> | |
541 <tag-desc> | |
542 Calculates the digest of all of the data passed using | |
543 <literal>hash.update()</literal>. | |
544 The encoding can be | |
545 <literal>hex</literal>, | |
546 <literal>base64</literal>, and | |
547 <literal>base64url</literal>. | |
548 If encoding is not provided, a byte string is returned. | |
549 </tag-desc> | |
550 | |
551 </list> | |
552 </para> | |
553 | |
554 <para> | |
555 <example> | |
556 >> var cr = require('crypto') | |
557 undefined | |
558 | |
559 >> cr.createHash('sha1').update('A').update('B').digest('base64url') | |
560 BtlFlCqiamG-GMPiK_GbvKjdK10 | |
561 </example> | |
562 </para> | |
563 | |
564 </section> | |
565 | |
566 | |
567 <section id="crypto_hmac" name="HMAC"> | |
568 | |
569 <para> | |
570 <list type="tag"> | |
571 | |
572 <tag-name><literal>hmac.update(<value>data</value>)</literal></tag-name> | |
573 <tag-desc> | |
574 Updates the HMAC content with the given <value>data</value>. | |
575 </tag-desc> | |
576 | |
577 <tag-name><literal>hmac.digest([<value>encoding</value>])</literal></tag-name> | |
578 <tag-desc> | |
579 Calculates the HMAC digest of all of the data passed using | |
580 <literal>hmac.update()</literal>. | |
581 The encoding can be | |
582 <literal>hex</literal>, | |
583 <literal>base64</literal>, and | |
584 <literal>base64url</literal>. | |
585 If encoding is not provided, a byte string is returned. | |
586 </tag-desc> | |
587 </list> | |
588 </para> | |
589 | |
590 <para> | |
591 <example> | |
592 >> var cr = require('crypto') | |
593 undefined | |
594 | |
595 >> cr.createHmac('sha1', 'secret.key').update('AB').digest('base64url') | |
596 Oglm93xn23_MkiaEq_e9u8zk374 | |
597 </example> | |
598 </para> | |
599 | |
600 </section> | |
601 | |
602 </section> | |
603 | |
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604 <section id="njs_api_timers" name="Timers"> |
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605 |
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606 <para> |
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607 |
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608 <list type="tag"> |
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609 |
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610 <tag-name id="cleartimeout"><literal>clearTimeout(<value>timeout</value>)</literal></tag-name> |
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611 <tag-desc> |
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612 Cancels a <literal>timeout</literal> object |
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613 created by <link id="settimeout">setTimeout()</link>. |
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614 </tag-desc> |
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615 |
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616 <tag-name id="settimeout"><literal>setTimeout(<value>function</value>, |
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617 <value>ms</value>[, <value>arg1</value>, <value>argN</value>])</literal></tag-name> |
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618 <tag-desc> |
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619 Calls a <literal>function</literal> |
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620 after a specified number of <literal>milliseconds</literal>. |
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621 One or more optional <literal>arguments</literal> |
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622 can be passed to the specified function. |
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623 Returns a <literal>timeout</literal> object. |
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624 <example> |
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625 function handler(v) |
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626 { |
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627 // ... |
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628 } |
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629 |
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630 t = setTimeout(handler, 12); |
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631 |
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632 // ... |
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633 |
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634 clearTimeout(t); |
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635 </example> |
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636 </tag-desc> |
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637 |
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|
638 </list> |
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|
639 </para> |
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|
640 |
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diff
changeset
|
641 </section> |
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642 |
2204
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643 |
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644 <section id="njs_api_fs" name="File System"> |
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645 |
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646 <para> |
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647 The File System module provides operations with files. |
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648 The module object is returned by <literal>require('fs')</literal>. |
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649 <list type="tag"> |
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|
650 |
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|
651 <tag-name id="appendfilesync"><literal>appendFileSync(<value>filename</value>, |
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652 <value>data</value>[, <value>options</value>])</literal></tag-name> |
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653 <tag-desc> |
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654 Synchronously appends specified <literal>data</literal> |
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655 to a file with provided <literal>filename</literal>. |
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656 If the file does not exist, it will be created. |
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|
657 The <literal>options</literal> parameter is expected to be |
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658 an object with the following keys: |
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659 <list type="tag"> |
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660 |
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661 <tag-name><literal>mode</literal></tag-name> |
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|
662 <tag-desc> |
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663 mode option, by default is <literal>0o666</literal> |
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664 </tag-desc> |
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|
665 |
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666 <tag-name><literal>flag</literal></tag-name> |
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667 <tag-desc> |
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|
668 file system <link id="njs_api_fs_flags">flag</link>, |
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parents:
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|
669 by default is <literal>a</literal> |
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parents:
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670 </tag-desc> |
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|
671 |
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|
672 </list> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
673 </tag-desc> |
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|
674 |
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|
675 <tag-name id="readfilesync"><literal>readFileSync(<value>filename</value>[, |
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parents:
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|
676 <value>options</value>])</literal></tag-name> |
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parents:
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|
677 <tag-desc> |
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678 Synchronously returns the contents of the file |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
679 with provided <literal>filename</literal>. |
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|
680 The <literal>options</literal> parameter holds |
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parents:
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diff
changeset
|
681 <literal>string</literal> that specifies encoding. |
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parents:
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|
682 If not specified, a <link id="string_tobytes">byte string</link> is returned. |
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683 If <literal>utf8</literal> encoding is specified, a Unicode string is returned. |
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parents:
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|
684 Otherwise, <literal>options</literal> is expected to be |
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diff
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|
685 an object with the following keys: |
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|
686 <list type="tag"> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
687 |
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Yaroslav Zhuravlev <yar@nginx.com>
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changeset
|
688 <tag-name><literal>encoding</literal></tag-name> |
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changeset
|
689 <tag-desc> |
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diff
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|
690 encoding, by default is not specified. |
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parents:
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|
691 The encoding can be <literal>utf8</literal> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
692 </tag-desc> |
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|
693 |
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|
694 <tag-name><literal>flag</literal></tag-name> |
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Documented fileSystem methods in njs.
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parents:
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|
695 <tag-desc> |
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|
696 file system <link id="njs_api_fs_flags">flag</link>, |
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parents:
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|
697 by default is <literal>r</literal> |
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parents:
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|
698 </tag-desc> |
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|
699 |
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parents:
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diff
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|
700 </list> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
701 <example> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
702 >> var fs = require('fs') |
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|
703 undefined |
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parents:
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|
704 >> var file = fs.readFileSync('/file/path.tar.gz') |
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parents:
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|
705 undefined |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
706 >> var gzipped = /^\x1f\x8b/.test(file); gzipped |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
707 true |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
708 </example> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
709 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
710 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
711 <tag-name id="writefilesync"><literal>writeFileSync(<value>filename</value>, |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
712 <value>data</value>[, |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
713 <value>options</value>])</literal></tag-name> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
714 <tag-desc> |
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parents:
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diff
changeset
|
715 Synchronously writes <literal>data</literal> to a file |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
716 with provided <literal>filename</literal>. |
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Documented fileSystem methods in njs.
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parents:
2203
diff
changeset
|
717 If the file does not exist, it will be created, |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
718 if the file exists, it will be replaced. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
719 The <literal>options</literal> parameter is expected to be |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
720 an object with the following keys: |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
721 <list type="tag"> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
722 <tag-name><literal>mode</literal></tag-name> |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
723 <tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
724 mode option, by default is <literal>0o666</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
725 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
726 |
001f2d905fd9
Documented fileSystem methods in njs.
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parents:
2203
diff
changeset
|
727 <tag-name><literal>flag</literal></tag-name> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
728 <tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
729 file system <link id="njs_api_fs_flags">flag</link>, |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
730 by default is <literal>w</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
731 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
732 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
733 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
734 <example> |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
735 >> var fs = require('fs') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
736 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
737 >> var file = fs.writeFileSync('hello.txt', 'Hello world') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
738 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
739 </example> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
740 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
741 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
742 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
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parents:
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diff
changeset
|
743 </para> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
744 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
745 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
746 <section id="njs_api_fs_flags" name="File System Flags"> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
747 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
748 <para> |
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Documented fileSystem methods in njs.
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parents:
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diff
changeset
|
749 The <literal>flag</literal> option can accept the following values: |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
750 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
751 <list type= "bullet" compact="no"> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
752 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
753 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
754 <literal>a</literal>—open a file for appending. |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
755 The file is created if it does not exist |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
756 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
757 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
758 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
759 <literal>ax</literal>—the same as <literal>a</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
760 but fails if the file already exists |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
761 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
762 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
763 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
764 <literal>a+</literal>—open a file for reading and appending. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
765 If the file does not exist, it will be created |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
766 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
767 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
768 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
769 <literal>ax+</literal>—the same as <literal>a+</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
770 but fails if the file already exists |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
771 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
772 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
773 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
774 <literal>as</literal>—open a file for appending in synchronous mode. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
775 If the file does not exist, it will be created |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
776 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
777 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
778 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
779 <literal>as+</literal>—open a file for reading and appending |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
780 in synchronous mode. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
781 If the file does not exist, it will be created |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
782 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
783 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
784 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
785 <literal>r</literal>—open a file for reading. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
786 An exception occurs if the file does not exist |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
787 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
788 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
789 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
790 <literal>r+</literal>—open a file for reading and writing. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
791 An exception occurs if the file does not exist |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
792 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
793 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
794 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
795 <literal>rs+</literal>—open a file for reading and writing |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
796 in synchronous mode. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
797 Instructs the operating system to bypass the local file system cache |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
798 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
799 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
800 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
801 <literal>w</literal>—open a file for writing. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
802 If the file does not exist, it will be created. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
803 If the file exists, it will be replaced |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
804 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
805 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
806 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
807 <literal>wx</literal>—the same as <literal>w</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
808 but fails if the file already exists |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
809 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
810 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
811 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
812 <literal>w+</literal>—open a file for reading and writing. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
813 If the file does not exist, it will be created. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
814 If the file exists, it will be replaced |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
815 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
816 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
817 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
818 <literal>wx+</literal>—the same as <literal>w+</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
819 but fails if the file already exists |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
820 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
821 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
822 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
823 </para> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
824 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
825 </section> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
826 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
827 </section> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
828 |
2176 | 829 </section> |
830 | |
831 | |
2202
b91e766acbd4
Updated HTTP request and stream session sections for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2201
diff
changeset
|
832 <section id="http" name="HTTP Request"> |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
833 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
834 <para> |
2202
b91e766acbd4
Updated HTTP request and stream session sections for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2201
diff
changeset
|
835 The HTTP request object is available only in the |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
836 <link doc="../http/ngx_http_js_module.xml">ngx_http_js_module</link> module. |
2202
b91e766acbd4
Updated HTTP request and stream session sections for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2201
diff
changeset
|
837 All string properties of the object are <link id="string">byte strings</link>. |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
838 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
839 <list type="tag"> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
840 |
2182
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
841 <tag-name><literal>r.args{}</literal></tag-name> |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
842 <tag-desc> |
2182
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
843 request arguments object, read-only |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
844 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
845 |
2182
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
846 <tag-name><literal>r.error(<value>string</value>)</literal></tag-name> |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
847 <tag-desc> |
2182
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
848 writes a <literal>string</literal> to the error log |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
849 on the <literal>error</literal> level of logging |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
850 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
851 |
2182
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
852 <tag-name><literal>r.finish()</literal></tag-name> |
2175
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
853 <tag-desc> |
2182
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
854 finishes sending a response to the client |
2175
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
855 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
856 |
2182
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
857 <tag-name><literal>r.headersIn{}</literal></tag-name> |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
858 <tag-desc> |
2182
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
859 incoming headers object, read-only. |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
860 <para> |
2207
6f9fd9677d1b
Corrected description of r.headersIn and r.headersOut.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
2204
diff
changeset
|
861 For example, the <literal>Foo</literal> header |
6f9fd9677d1b
Corrected description of r.headersIn and r.headersOut.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
2204
diff
changeset
|
862 can be accessed with the syntax <literal>headersIn.foo</literal> |
6f9fd9677d1b
Corrected description of r.headersIn and r.headersOut.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
2204
diff
changeset
|
863 or <literal>headersIn['Foo']</literal> |
2182
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
864 </para> |
2175
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Yaroslav Zhuravlev <yar@nginx.com>
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|
865 </tag-desc> |
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diff
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|
866 |
2182
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Merged HTTP request,response, and reply in njs.
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|
867 <tag-name><literal>r.headersOut{}</literal></tag-name> |
2175
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Yaroslav Zhuravlev <yar@nginx.com>
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|
868 <tag-desc> |
2182
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|
869 outgoing headers object, writable. |
2175
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parents:
diff
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|
870 <para> |
2207
6f9fd9677d1b
Corrected description of r.headersIn and r.headersOut.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
2204
diff
changeset
|
871 For example, the <literal>Foo</literal> header |
6f9fd9677d1b
Corrected description of r.headersIn and r.headersOut.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
2204
diff
changeset
|
872 can be accessed with the syntax <literal>headersOut.foo</literal> |
6f9fd9677d1b
Corrected description of r.headersIn and r.headersOut.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
2204
diff
changeset
|
873 or <literal>headersOut['Foo']</literal> |
2175
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
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|
874 </para> |
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
875 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
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|
876 |
2182
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Merged HTTP request,response, and reply in njs.
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|
877 <tag-name><literal>r.httpVersion</literal></tag-name> |
2175
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
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|
878 <tag-desc> |
2182
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Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
879 HTTP version, read-only |
2175
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
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|
880 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
881 |
2182
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|
882 <tag-name><literal>r.log(<value>string</value>)</literal></tag-name> |
2175
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Yaroslav Zhuravlev <yar@nginx.com>
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|
883 <tag-desc> |
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
884 writes a <literal>string</literal> to the error log |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
885 on the <literal>info</literal> level of logging |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
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parents:
diff
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|
886 </tag-desc> |
cd4889fdcfa4
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
887 |
2183
97526b8346f4
Added r.internalRedirect and its example in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2182
diff
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|
888 <tag-name id="r_internal_redirect"><literal>r.internalRedirect(<value>uri</value>)</literal></tag-name> |
97526b8346f4
Added r.internalRedirect and its example in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2182
diff
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|
889 <tag-desc> |
97526b8346f4
Added r.internalRedirect and its example in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2182
diff
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|
890 performs an internal redirect to the specified <literal>uri</literal>. |
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Added r.internalRedirect and its example in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
891 If the uri starts with the “<literal>@</literal>” prefix, |
97526b8346f4
Added r.internalRedirect and its example in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
892 it is considered a named location. |
97526b8346f4
Added r.internalRedirect and its example in njs.
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diff
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|
893 </tag-desc> |
97526b8346f4
Added r.internalRedirect and its example in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2182
diff
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|
894 |
2182
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Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
895 <tag-name><literal>r.method</literal></tag-name> |
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Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
896 <tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
897 HTTP method, read-only |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
898 </tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
899 |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
900 <tag-name><literal>r.parent</literal></tag-name> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
901 <tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
902 references the parent request object |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
903 </tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
904 |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
905 <tag-name><literal>r.remoteAddress</literal></tag-name> |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
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|
906 <tag-desc> |
2182
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Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
907 client address, read-only |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
908 </tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
909 |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
910 <tag-name><literal>r.requestBody</literal></tag-name> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
911 <tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
912 holds the request body, read-only |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
913 </tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
914 |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
915 <tag-name><literal>r.responseBody</literal></tag-name> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
916 <tag-desc> |
2198
bb2c6b63cb9a
Documented r.responseBody size in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2189
diff
changeset
|
917 holds the <link id="subrequest">subrequest</link> response body, read-only. |
bb2c6b63cb9a
Documented r.responseBody size in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2189
diff
changeset
|
918 The size of <literal>r.responseBody</literal> is limited by the |
bb2c6b63cb9a
Documented r.responseBody size in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2189
diff
changeset
|
919 <link doc="../http/ngx_http_core_module.xml" id="subrequest_output_buffer_size"/> |
bb2c6b63cb9a
Documented r.responseBody size in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2189
diff
changeset
|
920 directive. |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
921 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
922 |
2182
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
923 <tag-name><literal>r.return(status[, string])</literal></tag-name> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
924 <tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
925 sends the entire response |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
926 with the specified <literal>status</literal> to the client |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
927 <para> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
928 It is possible to specify either a redirect URL |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
929 (for codes 301, 302, 303, 307, and 308) |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
930 or the response body text (for other codes) as the second argument |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
931 </para> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
932 </tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
933 |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
934 <tag-name><literal>r.send(<value>string</value>)</literal></tag-name> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
935 <tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
936 sends a part of the response body to the client |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
937 </tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
938 |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
939 <tag-name><literal>r.sendHeader()</literal></tag-name> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
940 <tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
941 sends the HTTP headers to the client |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
942 </tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
943 |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
944 <tag-name><literal>r.status</literal></tag-name> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
945 <tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
946 status, writable |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
947 </tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
948 |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
949 <tag-name><literal>r.variables{}</literal></tag-name> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
950 <tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
951 nginx variables object, read-only |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
952 </tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
953 |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
954 <tag-name><literal>r.warn(<value>string</value>)</literal></tag-name> |
2175
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Moved njs HTTP and Stream API to a separate page.
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parents:
diff
changeset
|
955 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
956 writes a <literal>string</literal> to the error log |
2182
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Merged HTTP request,response, and reply in njs.
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|
957 on the <literal>warning</literal> level of logging |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
958 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
959 |
2182
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Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
960 <tag-name><literal>r.uri</literal></tag-name> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
961 <tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
962 current URI, read-only |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
963 </tag-desc> |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
964 |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
965 <tag-name id="subrequest"><literal>r.subrequest(<value>uri</value>[, |
2175
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
966 <value>options</value>[, <value>callback</value>]])</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
967 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
968 creates a subrequest with the given <literal>uri</literal> and |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
969 <literal>options</literal>, and installs |
2182
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changeset
|
970 an optional completion <literal>callback</literal>. |
2175
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Moved njs HTTP and Stream API to a separate page.
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parents:
diff
changeset
|
971 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
972 <para> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
973 If <literal>options</literal> is a string, then it |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
974 holds the subrequest arguments string. |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
975 Otherwise, <literal>options</literal> is expected to be |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
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parents:
diff
changeset
|
976 an object with the following keys: |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
977 <list type="tag"> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
978 <tag-name><literal>args</literal></tag-name> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
979 <tag-desc> |
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
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|
980 arguments string |
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
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|
981 </tag-desc> |
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
982 |
cd4889fdcfa4
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
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|
983 <tag-name><literal>body</literal></tag-name> |
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
984 <tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
985 request body |
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
986 </tag-desc> |
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
987 |
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
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|
988 <tag-name><literal>method</literal></tag-name> |
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
989 <tag-desc> |
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
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|
990 HTTP method |
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
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|
991 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
992 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
993 </list> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
994 </para> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
995 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
996 <para> |
2182
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Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
997 The completion <literal>callback</literal> receives |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
998 a subrequest response object with methods and properties |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
999 identical to the parent request object. |
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
1000 </para> |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
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|
1001 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1002 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1003 </list> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1004 </para> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1005 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1006 </section> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1007 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1008 |
2202
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Updated HTTP request and stream session sections for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2201
diff
changeset
|
1009 <section id="stream" name="Stream Session"> |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1010 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1011 <para> |
2202
b91e766acbd4
Updated HTTP request and stream session sections for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2201
diff
changeset
|
1012 The stream session object is available only in the |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1013 <link doc="../stream/ngx_stream_js_module.xml">ngx_stream_js_module</link> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1014 module. |
2202
b91e766acbd4
Updated HTTP request and stream session sections for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2201
diff
changeset
|
1015 All string properties of the object are <link id="string">byte strings</link>. |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1016 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1017 <list type="tag"> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1018 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1019 <tag-name><literal>s.remoteAddress</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1020 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1021 client address, read-only |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1022 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1023 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1024 <tag-name><literal>s.eof</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1025 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1026 a boolean read-only property, true if the current buffer is the last buffer |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1027 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1028 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1029 <tag-name><literal>s.fromUpstream</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1030 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1031 a boolean read-only property, |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1032 true if the current buffer is from the upstream server to the client |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1033 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1034 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1035 <tag-name><literal>s.buffer</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1036 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1037 the current buffer, writable |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1038 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1039 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1040 <tag-name><literal>s.variables{}</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1041 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1042 nginx variables object, read-only |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1043 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1044 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1045 <tag-name><literal>s.OK</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1046 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1047 the <literal>OK</literal> return code |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1048 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1049 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1050 <tag-name><literal>s.DECLINED</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1051 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1052 the <literal>DECLINED</literal> return code |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1053 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1054 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1055 <tag-name><literal>s.AGAIN</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1056 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1057 the <literal>AGAIN</literal> return code |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1058 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1059 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1060 <tag-name><literal>s.ERROR</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1061 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1062 the <literal>ERROR</literal> return code |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1063 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1064 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1065 <tag-name><literal>s.ABORT</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1066 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1067 the <literal>ABORT</literal> return code |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1068 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1069 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1070 <tag-name><literal>s.log(<value>string</value>)</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1071 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1072 writes a sent <value>string</value> to the error log |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1073 on the <literal>info</literal> level of logging |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1074 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1075 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1076 <tag-name><literal>s.warn(<value>string</value>)</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1077 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1078 writes a sent <literal>string</literal> to the error log |
2182
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
1079 on the <literal>warning</literal> level of logging |
2175
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Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
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|
1080 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1081 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1082 <tag-name><literal>s.error(<value>string</value>)</literal></tag-name> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1083 <tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1084 writes a sent <literal>string</literal> to the error log |
2182
7865ca0da0ab
Merged HTTP request,response, and reply in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2178
diff
changeset
|
1085 on the <literal>error</literal> level of logging |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1086 </tag-desc> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1087 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1088 </list> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1089 </para> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1090 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1091 </section> |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1092 |
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
1093 |
2178 | 1094 <section id="example" name="Examples"> |
1095 | |
1096 | |
1097 <section id="example_urldecode" name="URL Decoding"> | |
1098 | |
1099 <para> | |
1100 <example> | |
1101 js_include urldecode.js; | |
1102 | |
1103 js_set $decoded_foo decoded_foo; | |
1104 </example> | |
1105 </para> | |
1106 | |
1107 <para> | |
1108 The <path>urldecode.js</path> file: | |
1109 <example> | |
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1110 function decoded_foo(r) { |
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1111 return decodeURIComponent(r.args.foo); |
2178 | 1112 } |
1113 </example> | |
1114 </para> | |
1115 | |
1116 </section> | |
1117 | |
1118 | |
1119 <section id="example_urlencode" name="URL Encoding"> | |
1120 | |
1121 <para> | |
1122 <example> | |
1123 js_include urlencode.js; | |
1124 | |
1125 js_set $encoded_foo encoded_foo; | |
1126 ... | |
1127 | |
1128 location / { | |
1129 proxy_pass http://example.com?foo=$encoded_foo; | |
1130 } | |
1131 </example> | |
1132 </para> | |
1133 | |
1134 <para> | |
1135 The <path>urlencode.js</path> file: | |
1136 <example> | |
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1137 function encoded_foo(r) { |
2178 | 1138 return encodeURIComponent('foo & bar?'); |
1139 } | |
1140 </example> | |
1141 </para> | |
1142 | |
1143 </section> | |
1144 | |
1145 | |
2183
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1146 <section id="example_internal_redirect" name="Internal Redirect"> |
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1147 |
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1148 <para> |
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1149 <example> |
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1150 js_include redirect.js; |
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1151 |
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1152 location /redirect { |
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1153 js_content redirect; |
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1154 } |
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1155 |
2201 | 1156 location @named { |
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1157 return 200 named; |
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1158 } |
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1159 </example> |
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1160 </para> |
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1161 |
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1162 <para> |
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1163 The <path>redirect.js</path> file: |
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1164 <example> |
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1165 function redirect(r) { |
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1166 r.internalRedirect('@named'); |
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1167 } |
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1168 </example> |
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1169 </para> |
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1170 |
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1171 </section> |
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1172 |
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1173 |
2178 | 1174 <section id="example_fast_response" name="Returning Fastest Response from Proxy"> |
1175 | |
1176 <para> | |
1177 <example> | |
1178 js_include fastresponse.js; | |
1179 | |
1180 location /start { | |
1181 js_content content; | |
1182 } | |
1183 | |
1184 location /foo { | |
1185 proxy_pass http://backend1; | |
1186 } | |
1187 | |
1188 location /bar { | |
1189 proxy_pass http://backend2; | |
1190 } | |
1191 </example> | |
1192 </para> | |
1193 | |
1194 <para> | |
1195 The <path>fastresponse.js</path> file: | |
1196 <example> | |
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1197 function content(r) { |
2178 | 1198 var n = 0; |
1199 | |
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1200 function done(res) { |
2178 | 1201 if (n++ == 0) { |
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1202 r.return(res.status, res.responseBody); |
2178 | 1203 } |
1204 } | |
1205 | |
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1206 r.subrequest('/foo', r.variables.args, done); |
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1207 r.subrequest('/bar', r.variables.args, done); |
2178 | 1208 } |
1209 </example> | |
1210 </para> | |
1211 | |
1212 </section> | |
1213 | |
1214 | |
1215 <section id="example_jwt" name="Creating HS JWT"> | |
1216 | |
1217 <para> | |
1218 <example> | |
1219 js_include hs_jwt.js; | |
1220 | |
1221 js_set $jwt jwt; | |
1222 </example> | |
1223 </para> | |
1224 | |
1225 <para> | |
1226 The <path>hs_jwt.js</path> file: | |
1227 <example> | |
1228 function create_hs256_jwt(claims, key, valid) { | |
1229 var header = { "typ" : "JWT", "alg" : "HS256", "exp" : Date.now() + valid }; | |
1230 | |
1231 var s = JSON.stringify(header).toBytes().toString('base64url') + '.' | |
1232 + JSON.stringify(claims).toBytes().toString('base64url'); | |
1233 | |
1234 var h = require('crypto').createHmac('sha256', key); | |
1235 | |
1236 return s + '.' + h.update(s).digest().toString('base64url'); | |
1237 } | |
1238 | |
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1239 function jwt(r) { |
2178 | 1240 var claims = { |
1241 "iss" : "nginx", | |
1242 "sub" : "alice", | |
1243 "foo" : 123, | |
1244 "bar" : "qq", | |
1245 "zyx" : false | |
1246 }; | |
1247 | |
1248 return create_hs256_jwt(claims, 'foo', 600); | |
1249 } | |
1250 </example> | |
1251 </para> | |
1252 | |
1253 </section> | |
1254 | |
1255 | |
1256 <section id="example_subrequest" name="Accessing API from a Subrequest"> | |
1257 | |
1258 <para> | |
1259 <example> | |
1260 js_include subrequest.js; | |
1261 | |
1262 keyval_zone zone=foo:10m; | |
1263 ... | |
1264 | |
1265 location /keyval { | |
1266 js_content set_keyval; | |
1267 } | |
1268 | |
1269 location /version { | |
1270 js_content version; | |
1271 } | |
1272 | |
1273 location /api { | |
1274 api write=on; | |
1275 } | |
1276 </example> | |
1277 </para> | |
1278 | |
1279 <para> | |
1280 The <path>subrequest.js</path> file: | |
1281 <example> | |
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1282 function set_keyval(r) { |
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1283 r.subrequest('/api/3/http/keyvals/foo', |
2178 | 1284 { method: 'POST', |
1285 body: JSON.stringify({ foo: 789, bar: "ss dd 00" })}, | |
1286 | |
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1287 function(res) { |
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1288 if (res.status >= 300) { |
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1289 r.return(res.status, res.responseBody); |
2178 | 1290 return; |
1291 } | |
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1292 r.return(500); |
2178 | 1293 }); |
1294 } | |
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1295 |
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1296 function version(r) { |
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1297 r.subrequest('/api/3/nginx', { method: 'GET' }, function(res) { |
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1298 if (res.status != 200) { |
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1299 r.return(res.status); |
2178 | 1300 return; |
1301 } | |
1302 | |
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1303 var json = JSON.parse(res.responseBody); |
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1304 r.return(200, json.version); |
2178 | 1305 }); |
1306 } | |
1307 </example> | |
1308 </para> | |
1309 | |
1310 </section> | |
1311 | |
1312 | |
1313 <section id="example_secure_link" name="Creating secure_link Hash"> | |
1314 | |
1315 <para> | |
1316 <example> | |
1317 js_include hash.js; | |
1318 | |
1319 js_set $new_foo create_secure_link; | |
1320 ... | |
1321 | |
1322 location / { | |
1323 secure_link $cookie_foo; | |
1324 secure_link_md5 "$uri mykey"; | |
1325 ... | |
1326 } | |
1327 | |
1328 location @login { | |
1329 add_header Set-Cookie "foo=$new_foo; Max-Age=60"; | |
1330 return 302 /; | |
1331 } | |
1332 </example> | |
1333 </para> | |
1334 | |
1335 <para> | |
1336 The <path>hash.js</path> file: | |
1337 <example> | |
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1338 function create_secure_link(r) { |
2178 | 1339 return require('crypto').createHash('md5') |
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1340 .update(r.uri).update(" mykey") |
2178 | 1341 .digest('base64url'); |
1342 } | |
1343 </example> | |
1344 </para> | |
1345 | |
1346 </section> | |
1347 | |
1348 </section> | |
1349 | |
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1350 </article> |