1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
=encoding utf-8
=head1 Name
ngx.req - Lua API for HTTP request handling.
=head1 Status
This Lua module is production ready.
=head1 Synopsis
local ngx_req = require "ngx.req"
-- add_header
ngx_req.add_header("Foo", "bar")
ngx_req.add_header("Foo", "baz")
--> there will be two new headers in the HTTP request:
--> Foo: bar and Foo: baz
=head1 Description
This module provides a Lua API to handle HTTP requests.
=head1 Methods
All methods provided by this module are static (or module-level). That is, you
do not need an object (or instance) to call these methods.
=head2 add_header
B<syntax:> I<ngx_req.add_header(header_name, header_value)>
B<context:> I<set_by_luaE<42>, rewrite_by_luaE<42>, access_by_luaE<42>, content_by_luaE<42>, header_filter_by_luaE<42>, body_filter_by_luaE<42>>
This method adds the specified header and its value to the current
request. It works similarly as
L<ngx.req.set_header|https://github.com/openresty/lua-nginx-module#ngxreqset_header>,
with the exception that when the header already exists, the specified value(s)
will be appended instead of overriden.
The first argument C<header_name> must be a non-empty string.
When the specified C<header_name> is a builtin header (e.g. C<User-Agent>), this
method will override its values.
The C<header_value> argument can either be a string or a non-empty, array-like
table. A C<nil> or empty table value will cause this function to throw an error.
This feature was first introduced in the C<v0.1.18> release.
=head1 Community
=head2 English Mailing List
The L<openresty-en|https://groups.google.com/group/openresty-en> mailing list
is for English speakers.
=head2 Chinese Mailing List
The L<openresty|https://groups.google.com/group/openresty> mailing list is for
Chinese speakers.
=head1 Bugs and Patches
Please report bugs or submit patches by
=over
=item 1.
creating a ticket on the L<GitHub Issue Tracker|https://github.com/openresty/lua-resty-core/issues>,
=item 2.
or posting to the L<OpenResty community>.
=back
=head1 Copyright and License
This module is licensed under the BSD license.
Copyright (C) 2016-2019, by Yichun "agentzh" Zhang, OpenResty Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
=over
=item *
Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
=back
=over
=item *
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
=back
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=head1 See Also
=over
=item *
library L<lua-resty-core|https://github.com/openresty/lua-resty-core>
=item *
the ngx_lua module: https://github.com/openresty/lua-nginx-module
=item *
OpenResty: https://openresty.org
=back
|
