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An nginx output filter that formats Resty DBD Streams generated by ngx_drizzle and others to JSON
This project forked from openresty/rds-json-nginx-module
An nginx output filter that formats Resty DBD Streams generated by ngx_drizzle and others to JSON
Name ngx_rds_json - an output filter that formats Resty DBD Streams generated by ngx_drizzle and others to JSON Status This module is considered production ready. We need your help! If you find this module useful and/or interesting, please consider joining the development! Commit bit can be freely delivered at your request ;) Synopsis server { location /mysql { drizzle_query 'select * from cats'; drizzle_pass my_mysql_upstream; rds_json on; } location /foo { if ($arg_limit !~ '^\d{2}$') { rds_json_ret 400 'Bad "limit" argument'; } drizzle_query "select * from dogs limit $arg_limit"; drizzle_pass my_mysql_upstream; rds_json on; } ... } Description This module provides an output filter that can format the RDS outputs generated by ngx_drizzle and ngx_postgres modules. Directives rds_json syntax: rds_json on|off default: rds_json off Enables or disables the output filter of this module. rds_json_buffer_size syntax: rds_json_buffer_size <bytes> default: rds_json_buffer_size <page-size> Controls the buffer size used by this module. default to the page size (4k/8k). The bigger the buffer size, the less streammy the conversion will be. But usually increasing the buffer size does help reduce CPU time. rds_json_format syntax: rds_json_format normal|compact default: rds_json_format normal Controls the output JSON format. A sample of the default "normal" format looks like this [{"id":1,"name":"marry"},{"id":2,"name":"bob"}] while it looks like below when in the "compact" format [["id","name"],[1,"marry"],[2,"bob"]] that is, the first row holds the column name list. rds_json_ret syntax: rds_json_ret <error-code> <descrption> default: none This directive enables a content handler that simply emits an response body like this: {"errcode":<error-code>,"errstr":"<description>"} while the <description> string will be properly quoted as a JSON string. rds_json_content_type syntax: rds_json_content_type <mime-type> default: rds_json_content_type application/json Controls the Content-Type header of the response generated by this module's output filter. Installation Grab the nginx source code from nginx.net (<http://nginx.net/ >), for example, the version 0.8.54 (see nginx compatibility), and then build the source with this module: $ wget 'http://sysoev.ru/nginx/nginx-0.8.54.tar.gz' $ tar -xzvf nginx-0.8.54.tar.gz $ cd nginx-0.8.54/ # Here we assume you would install you nginx under /opt/nginx/. $ ./configure --prefix=/opt/nginx \ --add-module=/path/to/drizzle-nginx-module --add-module=/path/to/rds-json-nginx-module $ make -j2 $ make install Download the latest version of the release tarball of this module from rds-json-nginx-module file list (<http://github.com/agentzh/rds-json-nginx-module/downloads >). Compatibility The following versions of Nginx should work with this module: * 0.9.x (last tested: 0.9.4) * 0.8.x (last tested: 0.8.54) * 0.7.x >= 0.7.46 (last tested: 0.7.68) Earlier versions of Nginx like 0.6.x and 0.5.x will *not* work. If you find that any particular version of Nginx above 0.7.44 does not work with this module, please consider reporting a bug. TODO Known Issues See Also * ngx_drizzle ( http://github.com/chaoslawful/drizzle-nginx-module ) * ngx_postgres ( http://github.com/FRiCKLE/ngx_postgres/ ) Author agentzh (章亦春) <agentzh at gmail dot com> Copyright & License This module is licenced under the BSD license. Copyright (c) 2009, 2010, 2011, Taobao Inc., Alibaba Group ( http://www.taobao.com ). Copyright (C) 2009, 2010, 2011, Yichun "agentzh" Zhang (章亦春) <[email protected]>. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * 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. 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.
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