Skip to content

v3_EN_HTTPCallback

winlin edited this page Jan 6, 2022 · 22 revisions

HOME > EN > HTTP Callback

HTTPCallback

SRS does not support server-side scripting, instead it supports HTTP callbacks; read ServerSide script.

For token authentication based on HTTP callbacks, read Token Authentication

Compile

SRS always enable http callbacks.

For more information, read Build

Configuring SRS

The config for HTTP hooks is:

vhost your_vhost {
    http_hooks {
        # whether the http hooks enable.
        # default off.
        enabled         on;
        # when client connect to vhost/app, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_connect",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live",
        #           "tcUrl": "rtmp://video.test.com/live?key=d2fa801d08e3f90ed1e1670e6e52651a",
        #           "pageUrl": "http://www.test.com/live.html"
        #       }
        # if valid, the hook must return HTTP code 200(Status OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        # support multiple api hooks, format:
        #       on_connect http://xxx/api0 http://xxx/api1 http://xxx/apiN
        on_connect      http://127.0.0.1:8085/api/v1/clients http://localhost:8085/api/v1/clients;
        # when client close/disconnect to vhost/app/stream, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_close",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live",
        #           "send_bytes": 10240, "recv_bytes": 10240
        #       }
        # if valid, the hook must return HTTP code 200(Status OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        # support multiple api hooks, format:
        #       on_close http://xxx/api0 http://xxx/api1 http://xxx/apiN
        on_close        http://127.0.0.1:8085/api/v1/clients http://localhost:8085/api/v1/clients;
        # when client(encoder) publish to vhost/app/stream, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_publish",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live",
        #           "stream": "livestream"
        #       }
        # if valid, the hook must return HTTP code 200(Status OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        # support multiple api hooks, format:
        #       on_publish http://xxx/api0 http://xxx/api1 http://xxx/apiN
        on_publish      http://127.0.0.1:8085/api/v1/streams http://localhost:8085/api/v1/streams;
        # when client(encoder) stop publish to vhost/app/stream, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_unpublish",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live",
        #           "stream": "livestream", "param":"?token=xxx&salt=yyy"
        #       }
        # if valid, the hook must return HTTP code 200(Status OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        # support multiple api hooks, format:
        #       on_unpublish http://xxx/api0 http://xxx/api1 http://xxx/apiN
        on_unpublish    http://127.0.0.1:8085/api/v1/streams http://localhost:8085/api/v1/streams;
        # when client start to play vhost/app/stream, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_play",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live",
        #           "stream": "livestream", "param":"?token=xxx&salt=yyy",
        #           "pageUrl": "http://www.test.com/live.html"
        #       }
        # if valid, the hook must return HTTP code 200(Status OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        # support multiple api hooks, format:
        #       on_play http://xxx/api0 http://xxx/api1 http://xxx/apiN
        on_play         http://127.0.0.1:8085/api/v1/sessions http://localhost:8085/api/v1/sessions;
        # when client stop to play vhost/app/stream, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_stop",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live",
        #           "stream": "livestream", "param":"?token=xxx&salt=yyy"
        #       }
        # if valid, the hook must return HTTP code 200(Status OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        # support multiple api hooks, format:
        #       on_stop http://xxx/api0 http://xxx/api1 http://xxx/apiN
        on_stop         http://127.0.0.1:8085/api/v1/sessions http://localhost:8085/api/v1/sessions;
        # when srs reap a dvr file, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_dvr",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live",
        #           "stream": "livestream", "param":"?token=xxx&salt=yyy",
        #           "cwd": "/usr/local/srs",
        #           "file": "./objs/nginx/html/live/livestream.1420254068776.flv"
        #       }
        # if valid, the hook must return HTTP code 200(Status OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        on_dvr          http://127.0.0.1:8085/api/v1/dvrs http://localhost:8085/api/v1/dvrs;
        # when srs reap a ts file of hls, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_hls",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live",
        #           "stream": "livestream", "param":"?token=xxx&salt=yyy",
        #           "duration": 9.36, // in seconds
        #           "cwd": "/usr/local/srs",
        #           "file": "./objs/nginx/html/live/livestream/2015-04-23/01/476584165.ts",
        #           "url": "live/livestream/2015-04-23/01/476584165.ts",
        #           "m3u8": "./objs/nginx/html/live/livestream/live.m3u8",
        #           "m3u8_url": "live/livestream/live.m3u8",
        #           "seq_no": 100
        #       }
        # if valid, the hook must return HTTP code 200(Status OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        on_hls          http://127.0.0.1:8085/api/v1/hls http://localhost:8085/api/v1/hls;
        # when srs reap a ts file of hls, call this hook,
        # used to push file to cdn network, by get the ts file from cdn network.
        # so we use HTTP GET and use the variable following:
        #       [app], replace with the app.
        #       [stream], replace with the stream.
        #       [param], replace with the param.
        #       [ts_url], replace with the ts url.
        # ignore any return data of server.
        # @remark random select a url to report, not report all.
        on_hls_notify   http://127.0.0.1:8085/api/v1/hls/[app]/[stream]/[ts_url][param];
    }
}

Note: For more information, read the section hooks.callback.vhost.com in conf/full.conf

HTTP Callback Events

SRS can call HTTP callbacks for events:

Event Data Description
on_connect {
"action": "on_connect",
"client_id": 1985,
"ip": "192.168.1.10",
"vhost": "video.test.com",
"app": "live",
"tcUrl": "rtmp://x/x?key=xxx",
"pageUrl": "http://x/x.html"
}
When a client connects to the specified vhost and app.
on_close {
"action": "on_close",
"client_id": 1985,
"ip": "192.168.1.10",
"vhost": "video.test.com",
"app": "live",
"send_bytes": 10240,
"recv_bytes": 10240
}
When a client closes a connection, or the server drops a connection.
on_publish {
"action": "on_publish",
"client_id": 1985,
"ip": "192.168.1.10",
"vhost": "video.test.com",
"app": "live",
"stream": "livestream"
}
When a client publishes a stream, for example, using flash or FMLE to publish a stream to the server.
on_unpublish {
"action": "on_unpublish",
"client_id": 1985,
"ip": "192.168.1.10",
"vhost": "video.test.com",
"app": "live",
"stream": "livestream"
}
When a client stops publishing a stream.
on_play {
"action": "on_play",
"client_id": 1985,
"ip": "192.168.1.10",
"vhost": "video.test.com",
"app": "live",
"stream": "livestream",
"pageUrl": "http://a.com/i.html",
"param":"?k=v"
}
When a client starts playing a stream.
on_stop {
"action": "on_stop",
"client_id": 1985,
"ip": "192.168.1.10",
"vhost": "video.test.com",
"app": "live",
"stream": "livestream"
}
When a client stops playback.
on_dvr {
"action": "on_dvr",
"client_id": 1985,
"ip": "192.168.1.10",
"vhost": "video.test.com",
"app": "live",
"stream": "livestream",
"cwd": "/opt",
"file": "./l.xxx.flv"
}
When reap a DVR file.

Notes:

  • Event: When this event occurs, call back to the specified HTTP URL.
  • HTTP URL: Can be multiple URLs, split by spaces, SRS will notify all one by one.
  • Data: SRS will POST the data to specified HTTP API.
  • Return Code: SRS requires that the response is an int indicating the error, 0 is success. SRS will disconnect the connection when the response is not 0, or HTTP status is not 200.

SRS HTTP Callback Server

SRS provides a default HTTP callback server, using cherrypy.

To start it: python research/api-server/server.py 8085

[winlin@dev6 srs]$ python research/api-server/server.py 8085
[2014-02-27 09:42:25][trace] api server listen at port: 8085, static_dir: /home/winlin/git/srs/trunk/research/api-server/static-dir
[2014-02-27 09:42:25][trace] start cherrypy server
[27/Feb/2014:09:42:25] ENGINE Listening for SIGHUP.
[27/Feb/2014:09:42:25] ENGINE Listening for SIGTERM.
[27/Feb/2014:09:42:25] ENGINE Listening for SIGUSR1.
[27/Feb/2014:09:42:25] ENGINE Bus STARTING
[27/Feb/2014:09:42:25] ENGINE Started monitor thread '_TimeoutMonitor'.
[27/Feb/2014:09:42:25] ENGINE Started monitor thread 'Autoreloader'.
[27/Feb/2014:09:42:25] ENGINE Serving on 0.0.0.0:8085
[27/Feb/2014:09:42:25] ENGINE Bus STARTED

Publish and Play

When publishing a stream to SRS, SRS will call the registered HTTP callback:

[2014-02-27 09:41:33][trace] post to clients, req={"action":"on_connect","client_id":4,"ip":"192.168.1.179","vhost":"__defaultVhost__","app":"live","pageUrl":""}
[2014-02-27 09:41:33][trace] srs on_connect: client id=4, ip=192.168.1.179, vhost=__defaultVhost__, app=live, pageUrl=
127.0.0.1 - - [27/Feb/2014:09:41:33] "POST /api/v1/clients HTTP/1.1" 200 1 "" "srs(simple rtmp server)0.9.2"

When playing a stream on SRS, SRS will call the registered HTTP callback:

[2014-02-27 09:41:50][trace] post to clients, req={"action":"on_connect","client_id":5,"ip":"192.168.1.179","vhost":"__defaultVhost__","app":"live","pageUrl":"http://dev.chnvideo.com:3080/players/rtmp/"}
[2014-02-27 09:41:50][trace] srs on_connect: client id=5, ip=192.168.1.179, vhost=__defaultVhost__, app=live, pageUrl=http://dev.chnvideo.com:3080/players/rtmp/
127.0.0.1 - - [27/Feb/2014:09:41:50] "POST /api/v1/clients HTTP/1.1" 200 1 "" "srs(simple rtmp server)0.9.2"

Snapshot

The HttpCallback can used to snapshot, please read snapshot

Winlin 2015.1

Welcome to SRS wiki!

SRS 5.0 wiki

Please select your language:

SRS 4.0 wiki

Please select your language:

SRS 3.0 wiki

Please select your language:

SRS 2.0 wiki

Please select your language:

SRS 1.0 wiki

Please select your language:

Clone this wiki locally