Mercurial > hg > nginx-site

annotate xml/en/docs/stream/ngx_stream_js_module.xml @ 2769:16f6fa718be2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Updated TLSv1.3 support notes. Previous notes described some early development snapshot of OpenSSL 1.1.1 with disabled TLSv1.3 by default. It was then enabled in the first alpha. Further, the updated text covers later major releases such as OpenSSL 3.0.
author Sergey Kandaurov <pluknet@nginx.com>
date Thu, 30 Sep 2021 16:29:20 +0300
parents 42fb92e582db
children a2852750c379
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
1 <?xml version="1.0"?>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
2
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
3 <!--
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
4 Copyright (C) Nginx, Inc.
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
5 -->
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
6
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
7 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd">
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
8
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
9 <module name="Module ngx_stream_js_module"
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
10 link="/en/docs/stream/ngx_stream_js_module.html"
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
11 lang="en"
2747
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
12 rev="28">
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
13
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
14 <section id="summary">
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
15
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
16 <para>
1844
f56626ce9c40 Changed JavaScript to nginScript.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1840
diff changeset
17 The <literal>ngx_stream_js_module</literal> module is used to implement
2245
87a0e2c73a25 Refactored njs documentation.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2244
diff changeset
18 handlers in <link doc="../njs/index.xml">njs</link> —
1844
f56626ce9c40 Changed JavaScript to nginScript.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1840
diff changeset
19 a subset of the JavaScript language.
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
20 </para>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
21
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
22 <para>
2188
523dc4cc8745 Updated installation procedure in njs modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2175
diff changeset
23 Download and install instructions are available
2245
87a0e2c73a25 Refactored njs documentation.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2244
diff changeset
24 <link doc="../njs/install.xml">here</link>.
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
25 </para>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
26
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
27 </section>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
28
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
29
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
30 <section id="example" name="Example Configuration">
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
31
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
32 <para>
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
33 The example works since
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
34 <link doc="../njs/changes.xml" id="njs0.4.0">0.4.0</link>.
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
35 <example>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
36 stream {
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
37 js_import stream.js;
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
38
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
39 js_set $bar stream.bar;
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
40 js_set $req_line stream.req_line;
1858
36cbfff92c6d Restricted context of js_set directive to http and stream only.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1853
diff changeset
41
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
42 server {
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
43 listen 12345;
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
44
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
45 js_preread stream.preread;
2237
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
46 return $req_line;
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
47 }
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
48
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
49 server {
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
50 listen 12346;
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
51
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
52 js_access stream.access;
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
53 proxy_pass 127.0.0.1:8000;
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
54 js_filter stream.header_inject;
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
55 }
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
56 }
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
57
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
58 http {
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
59 server {
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
60 listen 8000;
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
61 location / {
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
62 return 200 $http_foo\n;
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
63 }
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
64 }
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
65 }
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
66 </example>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
67 </para>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
68
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
69 <para>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
70 The <path>stream.js</path> file:
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
71 <example>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
72 var line = '';
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
73
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
74 function bar(s) {
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
75 var v = s.variables;
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
76 s.log("hello from bar() handler!");
2237
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
77 return "bar-var" + v.remote_port + "; pid=" + v.pid;
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
78 }
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
79
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
80 function preread(s) {
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
81 s.on('upload', function (data, flags) {
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
82 var n = data.indexOf('\n');
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
83 if (n != -1) {
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
84 line = data.substr(0, n);
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
85 s.done();
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
86 }
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
87 });
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
88 }
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
89
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
90 function req_line(s) {
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
91 return line;
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
92 }
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
93
2237
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
94 // Read HTTP request line.
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
95 // Collect bytes in 'req' until
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
96 // request line is read.
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
97 // Injects HTTP header into a client's request
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
98
2237
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
99 var my_header = 'Foo: foo';
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
100 function header_inject(s) {
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
101 var req = '';
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
102 s.on('upload', function(data, flags) {
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
103 req += data;
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
104 var n = req.search('\n');
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
105 if (n != -1) {
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
106 var rest = req.substr(n + 1);
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
107 req = req.substr(0, n + 1);
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
108 s.send(req + my_header + '\r\n' + rest, flags);
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
109 s.off('upload');
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
110 }
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
111 });
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
112 }
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
113
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
114 function access(s) {
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
115 if (s.remoteAddress.match('^192.*')) {
2649
7517de030c0a Corrected njs example in ngx_stream_js_module module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2641
diff changeset
116 s.deny();
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
117 return;
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
118 }
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
119
2237
5268c13196f2 Documented njs changes triggered by njs-0.2.4.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2190
diff changeset
120 s.allow();
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
121 }
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
122
2641
ea9f4dc0c801 Fixed example in stream js module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2591
diff changeset
123 export default {bar, preread, req_line, header_inject, access};
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
124 </example>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
125 </para>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
126
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
127 </section>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
128
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
129
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
130 <section id="directives" name="Directives">
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
131
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
132 <directive name="js_access">
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
133 <syntax><value>function</value> | <value>module.function</value></syntax>
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
134 <default/>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
135 <context>stream</context>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
136 <context>server</context>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
137
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
138 <para>
2128
59a3cc84f507 Renamed nginScript to njs
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2026
diff changeset
139 Sets an njs function which will be called at the
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
140 <link doc="stream_processing.xml" id="access_phase">access</link> phase.
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
141 Since <link doc="../njs/changes.xml" id="njs0.4.0">0.4.0</link>,
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
142 a module function can be referenced.
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
143 </para>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
144
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
145 </directive>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
146
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
147
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
148 <directive name="js_filter">
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
149 <syntax><value>function</value> | <value>module.function</value></syntax>
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
150 <default/>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
151 <context>stream</context>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
152 <context>server</context>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
153
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
154 <para>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
155 Sets a data filter.
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
156 Since <link doc="../njs/changes.xml" id="njs0.4.0">0.4.0</link>,
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
157 a module function can be referenced.
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
158 </para>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
159
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
160 </directive>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
161
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
162
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
163 <directive name="js_import">
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
164 <syntax><value>module.js</value> |
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
165 <value>export_name from module.js</value></syntax>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
166 <default/>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
167 <context>stream</context>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
168 <appeared-in>0.4.0</appeared-in>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
169
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
170 <para>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
171 Imports a module that implements location and variable handlers in njs.
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
172 The <literal>export_name</literal> is used as a namespace
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
173 to access module functions.
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
174 If the <literal>export_name</literal> is not specified,
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
175 the module name will be used as a namespace.
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
176 <example>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
177 js_import stream.js;
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
178 </example>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
179 Here, the module name <literal>stream</literal> is used as a namespace
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
180 while accessing exports.
2680
8751cab1d562 Corrected example description in js_import.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2649
diff changeset
181 If the imported module exports <literal>foo()</literal>,
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
182 <literal>stream.foo</literal> is used to refer to it.
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
183 </para>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
184
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
185 <para>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
186 Several <literal>js_import</literal> directives can be specified.
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
187 </para>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
188
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
189 </directive>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
190
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
191
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
192 <directive name="js_include">
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
193 <syntax><value>file</value></syntax>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
194 <default/>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
195 <context>stream</context>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
196
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
197 <para>
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
198 Specifies a file that implements server and variable handlers in njs:
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
199 <example>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
200 nginx.conf:
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
201 js_include stream.js;
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
202 js_set $js_addr address;
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
203 server {
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
204 listen 127.0.0.1:12345;
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
205 return $js_addr;
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
206 }
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
207
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
208 stream.js:
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
209 function address(s) {
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
210 return s.remoteAddress;
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
211 }
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
212 </example>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
213 </para>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
214
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
215 <para>
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
216 The directive is deprecated since
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
217 <link doc="../njs/changes.xml" id="njs0.4.0">0.4.0</link>,
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
218 the <link id="js_import"/> directive should be used instead.
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
219 </para>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
220
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
221 </directive>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
222
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
223
2352
1101e24c6d14 Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2332
diff changeset
224 <directive name="js_path">
1101e24c6d14 Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2332
diff changeset
225 <syntax>
1101e24c6d14 Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2332
diff changeset
226 <value>path</value></syntax>
1101e24c6d14 Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2332
diff changeset
227 <default/>
2591
f27cedd43e0f Corrected syntax of js_path in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2534
diff changeset
228 <context>stream</context>
2352
1101e24c6d14 Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2332
diff changeset
229 <appeared-in>0.3.0</appeared-in>
1101e24c6d14 Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2332
diff changeset
230
1101e24c6d14 Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2332
diff changeset
231 <para>
1101e24c6d14 Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2332
diff changeset
232 Sets an additional path for njs modules.
1101e24c6d14 Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2332
diff changeset
233 </para>
1101e24c6d14 Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2332
diff changeset
234
1101e24c6d14 Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2332
diff changeset
235 </directive>
1101e24c6d14 Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2332
diff changeset
236
1101e24c6d14 Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2332
diff changeset
237
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
238 <directive name="js_preread">
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
239 <syntax><value>function</value> | <value>module.function</value></syntax>
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
240 <default/>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
241 <context>stream</context>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
242 <context>server</context>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
243
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
244 <para>
2128
59a3cc84f507 Renamed nginScript to njs
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2026
diff changeset
245 Sets an njs function which will be called at the
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
246 <link doc="stream_processing.xml" id="preread_phase">preread</link> phase.
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
247 Since <link doc="../njs/changes.xml" id="njs0.4.0">0.4.0</link>,
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
248 a module function can be referenced.
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
249 </para>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
250
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
251 </directive>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
252
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
253
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
254 <directive name="js_set">
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
255 <syntax>
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
256 <value>$variable</value> <value>function</value> |
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
257 <value>module.function</value></syntax>
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
258 <default/>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
259 <context>stream</context>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
260
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
261 <para>
2686
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
262 Sets an njs <literal>function</literal>
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
263 for the specified <literal>variable</literal>.
2530
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
264 Since <link doc="../njs/changes.xml" id="njs0.4.0">0.4.0</link>,
407c5bd5bffc Documented the js_import directive and corresponding changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2352
diff changeset
265 a module function can be referenced.
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
266 </para>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
267
2686
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
268 <para>
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
269 The function is called when
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
270 the variable is referenced for the first time for a given request.
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
271 The exact moment depends on a
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
272 <link doc="stream_processing.xml">phase</link>
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
273 at which the variable is referenced.
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
274 This can be used to perform some logic
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
275 not related to variable evaluation.
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
276 For example, if the variable is referenced only in the
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
277 <link doc="ngx_stream_log_module.xml" id="log_format"/> directive,
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
278 its handler will not be executed until the log phase.
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
279 This handler can be used to do some cleanup
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
280 right before the request is freed.
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
281 </para>
45214e5316cd Improved description of js_set.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2680
diff changeset
282
2747
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
283 <para>
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
284 <note>
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
285 As the <literal>js_set</literal> handler
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
286 returns its result immediately, it supports
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
287 only synchronous callbacks.
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
288 Thus, asynchronous callbacks such as
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
289 <link doc="../njs/reference.xml" id="ngx_fetch">ngx.fetch()</link>
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
290 or
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
291 <link doc="../njs/reference.xml" id="settimeout">setTimeout()</link>
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
292 are not supported.
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
293 </note>
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
294 </para>
42fb92e582db Added note to js_set about asyncronous calls.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2697
diff changeset
295
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
296 </directive>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
297
2693
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
298
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
299 <directive name="js_var">
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
300 <syntax><value>$variable</value> [<value>value</value>]</syntax>
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
301 <default/>
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
302 <context>stream</context>
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
303 <appeared-in>0.5.3</appeared-in>
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
304
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
305 <para>
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
306 Declares
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
307 a <link doc="../njs/reference.xml" id="r_variables">writable</link>
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
308 variable.
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
309 The value can contain text, variables, and their combination.
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
310 </para>
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
311
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
312 </directive>
3cbd6e440581 Documented the js_var directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2686
diff changeset
313
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
314 </section>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
315
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
316
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
317 <section id="properties" name="Session Object Properties">
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
318
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
319 <para>
2175
cd4889fdcfa4 Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2135
diff changeset
320 Each stream njs handler receives one argument, a stream session
2246
32ba43abf9cd Renamed njs API, njs Changes.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 2245
diff changeset
321 <link doc="../njs/reference.xml" id="stream">object</link>.
1840
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
322 </para>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
323
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
324 </section>
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
325
15632fc2d548 Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff changeset
326 </module>