Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

Information about the streams on monitored nodes can be obtained from backend server with Websocket API or REST API.

Current streams information

Current streams information can be obtained with REST API query /api/stream/list request

APIRequestResponseResponse status
WS API
Code Block

...

themeRDark
SEND
destination:/app/api/stream/list
content-length:207

{
 "requestId":"f2378c35-e7ca-4241-b382-29f696f0dddb",
 "realm":"/api/stream/list",
 "payload":
 {
  "node":"3",
  "mediaId":"f3ad4670-8e83-11e9-8386-dbc3d191a79a",
  "name":"",
  "publisher":"",
  "status":"",
  "showClosed":false
 }
}
Code Block
themeRDark

...

MESSAGE
destination:/

...

user/service
content-type:application/json;charset=UTF-8
subscription:sub-1
message-id:3-35
content-length:210

{
 "requestId":"f2378c35-e7ca-4241-b382-29f696f0dddb",
 "status":200,
 "reason":"SUCCESS",
 "payload":[
  {
   "name":"test",
   "publisher":null,
   "mediaId":"f3ad4670-8e83-11e9-8386-dbc3d191a79a",
   "age":229,
   "status":"PUBLISHING"
  }
 ]
}

200 OK

400 Object not found

500 Persist exception

REST API
Code Block
themeRDark
POST: /api/stream/list "application/json; charset=utf-8"
{

...

 "node":"3",

...

 "mediaId":"f3ad4670-8e83-11e9-8386-dbc3d191a79a",
 "name":"",
 "publisher":"",
 "status":"",
 "showClosed":false
}
Code Block
themeRDark
{
    "status": 200,
    "reason": "SUCCESS",

...

    "payload": [
        {
            "name": "test",
            "publisher": null,
            "

...

mediaId": "f3ad4670-8e83-11e9-8386-dbc3d191a79a",
            "age": 152,
            "status": "PUBLISHING"
        }
    ]
}

200 OK

400 Object not found

500 Persist exception

Where

  • node – node identifier (mandatory)
  • mediaId – media session identifier
  • name – stream name
  • age – stream cache record age in milliseconds
  • publisher - publisher identifier (for played streams)
  • status – stream status (PENDING, PUBLISHING, PLAYING, UNPUBLISHED, STOPPED, FAILED)
  • showClosed - show closed streams from cache

Response data are obtained from current metrics cache.

The response contains the following fields:

...

languagejs
themeRDark

...

Current instantaneous stream metric values

Current instantaneous metric values for stream published or played on WCS can be obtained with /api/stream/metrics request

APIRequestResponseResponse status
WS API
Code Block
themeRDark
SEND
destination:/app/api/stream/metrics
content-length:176

{
 "requestId":"e6d022e5-b5ae-4b6e-ad6e-e1c188e324d7",
 "realm":"/api/stream/metrics",
 "payload":
 {
  "node":"3",
  "mediaId":"5d03b340-8e8c-11e9-92b7-23d635edebe6",
  "limit":10,
  "offset":0
 }
}
Code Block
themeRDark
MESSAGE
destination:/user/service
content-type:application/json;charset=UTF-8
subscription:sub-1
message-id:2-18
content-length:1764

{
    "requestId":"e6d022e5-b5ae-4b6e-ad6e-e1c188e324d7",
    "status": 200,
    "reason": "SUCCESS",
    "payload": [
        {
            "AUDIO_SYNC": 3769496857356,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:37.644Z",
            "AUDIO_RATE": 29816,
            "seq": 14,
            "AUDIO_LOST": 41
        },
        {
            "AUDIO_SYNC": 3769496857236,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:37.52Z",
           

...

 "AUDIO_RATE": 31048,
            "seq": 14,
            "AUDIO_LOST": 41
        },
        {
            "VIDEO_SYNC": 3769496857221,
            "VIDEO_CODEC": 119,
            "VIDEO_NACK": 38,
            "VIDEO_PLI": 0,
            "VIDEO_RATE": 404488,
            "VIDEO_WIDTH": 320,
            "time": "

...

2019-

...

06-14T10:27:37.494Z",
            "VIDEO_FPS": 23,
            "VIDEO_HEIGHT": 240,
            "seq": 16
        },
        {
            "AUDIO_SYNC": 3769496857116,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:37.397Z",
            "AUDIO_RATE": 29304,
            "seq": 14,
            "AUDIO_LOST": 41
        },
        {
            "VIDEO_SYNC": 3769496857029,
            "VIDEO_CODEC": 119,
        

...

    "VIDEO_NACK": 38,
            "VIDEO_PLI": 0,
        

...

    "VIDEO_RATE": 

...

409056,
            "

...

VIDEO_WIDTH": 

...

320,
            "

...

time": "

...

2019-06-14T10:27:37.301Z",
            "VIDEO_FPS": 22,
            "VIDEO

...

_HEIGHT": 240,
            "seq": 16
        },
        {
            "AUDIO_SYNC": 3769496856996,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:37.285Z",
            "AUDIO_RATE": 28112,
            "seq": 14,
            "AUDIO_LOST": 41
        },
        {
            "AUDIO_SYNC": 3769496856876,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:37.16Z",
            "AUDIO_RATE": 28248,
            "seq": 14,
            "AUDIO_LOST": 41
        },
        {
            "VIDEO_SYNC": 

...

3769496856806,
            "VIDEO_CODEC": 119,
            "VIDEO_NACK": 

...

37,
            "

...

VIDEO_

...

PLI": 0,
            "VIDEO_RATE": 430992,
            "VIDEO_WIDTH": 320,
            "time": "2019-06-14T10:27:37.124Z",
            "VIDEO_FPS": 22,
            "VIDEO_HEIGHT": 240,
            "seq": 16
        },
        {
            "AUDIO_

...

SYNC": 3769496856756,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:37.039Z",
            "AUDIO_RATE": 27424,
            "seq": 14,
            "AUDIO_LOST": 41
        },
        {
            "AUDIO_SYNC": 3769496856636,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:36.923Z",
            "AUDIO_RATE": 26888,
            "seq": 14,
            "

...

AUDIO_LOST": 41
        }
    ]
}

200 OK

400 Object not found

500 Persist exception

REST API
Code Block
themeRDark
POST: /api/stream/metrics "application/json; charset=utf-8"
{
 "node":"3",
 "mediaId":"5d03b340-8e8c-11e9-92b7-23d635edebe6",
 "limit":10,
 "offset":0
}
Code Block
themeRDark
{
    "status": 200,
    "reason": "SUCCESS",
    "payload": [
        {
            "AUDIO_SYNC": 3769496857356,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:37.644Z",
            "AUDIO_RATE": 29816,
            "seq": 14,
            "AUDIO_LOST": 41
        },
        {
            "AUDIO_SYNC": 3769496857236,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:37.52Z",
            "AUDIO_RATE": 31048,
            "seq": 14,
            "AUDIO_LOST": 

...

41
        },
        {
            "VIDEO_SYNC": 3769496857221,
            "VIDEO_CODEC": 119,
            "

...

VIDEO_

...

NACK": 

...

38,
            "VIDEO_PLI": 

...

0,
            "VIDEO_RATE": 404488,
            "VIDEO_WIDTH":

...

 320,
            "time": "2019-06-14T10:27:37.494Z",
            "VIDEO_FPS": 23,
            "VIDEO_HEIGHT": 240,
            "seq": 16
        },
        {
            "AUDIO_SYNC": 3769496857116,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:37.397Z",
            "AUDIO_RATE": 29304,
            "seq": 14,
            "AUDIO_LOST": 41
        },
        {
            "VIDEO_SYNC": 3769496857029,
            "VIDEO_CODEC": 119,
            "VIDEO_NACK": 38,
            "VIDEO_PLI": 0,
            "VIDEO_RATE": 409056,
            "VIDEO_WIDTH": 320,
            "time": "2019-06-14T10:27:37.301Z",
            "VIDEO_FPS": 22,
            "VIDEO_HEIGHT": 240,
            "seq": 16
        },
        {
            "AUDIO_SYNC": 3769496856996,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:37.285Z",
            "AUDIO_RATE": 28112,
            "seq": 14,
            "AUDIO_LOST": 41
        },
        {
            "AUDIO_SYNC": 3769496856876,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:37.16Z",
            "AUDIO_RATE": 28248,
            "seq": 14,
            "AUDIO_LOST": 41
        },
        {
            "VIDEO_SYNC": 3769496856806,
            "VIDEO_CODEC": 119,
            "VIDEO_NACK": 37,
            "VIDEO_PLI": 0,
            "VIDEO_RATE": 430992,
            "VIDEO_WIDTH": 320,
            "time": "2019-06-14T10:27:37.124Z",
            "VIDEO_FPS": 22,
            "VIDEO_HEIGHT": 240,
            "seq": 16
        },
        {
            "AUDIO_SYNC": 3769496856756,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:37.039Z",
            "AUDIO_RATE": 27424,
            "seq": 14,
            "AUDIO_LOST": 41
        },
        {
            "AUDIO_SYNC": 3769496856636,
            "AUDIO_CODEC": 111,
            "time": "2019-06-14T10:27:36.923Z",
            "AUDIO_RATE": 26888,
            "seq": 

...

14,
            "

...

AUDIO_

...

LOST": 

...

41
        }
    ]

...

Where

...


}

200 OK

400 Object not found

500 Persist exception

Здесь:

  • node – node identifier (mandatory)
  • mediaId – stream media session identifier
  • age – cache record age in milliseconds
  • publisher - publisher identifier (for played streams)(mandatory)
  • limit - messages quantity in cache selection
  • offset - cache offset
  • time - time stamp
  • seq - cache message sequence number

Response also contains current instantaneous metric values from cache.

...

Stream history information can be obtained with REST API query  /api/stream/history

...

request

APIRequestResponseResponse status
WS API
Code Block
themeRDark

...

SEND
destination:/

...

app/api/stream/history
content-length:191

{
 "requestId":"4a700886-a559-42b7-b43d-82679d8573d6",
 "realm":"/api/stream/history",
 "payload":
 {

...

  "node":"3",

...

  "mediaId":"f3ad4670-8e83-11e9-8386-dbc3d191a79a",

...

  "name":"",
  "publisher":"",

...

  "status":""
 }
}

Where

  • node – node identifier
  • mediaId – media session identifier
  • name – stream name
  • publisher - publisher identifier (for played streams)
  • status – stream status (PENDING, PUBLISHING, PLAYING, UNPUBLISHED, STOPPED, FAILED)

If node Id is set, the response will contain only that node stream history information. If Id is not set, the response will contain all the streams history on backend server corresponding to the other query criteria.

The response contains the following fields:

...

languagejs
themeRDark

...

Code Block
themeRDark
MESSAGE
destination:/user/service
content-type:application/json;charset=UTF-8
subscription:sub-1
message-id:3-39
content-length:310

{
 "requestId":"4a700886-a559-42b7-b43d-82679d8573d6",
 "status":200,
 "reason":"SUCCESS",
 "payload":[
  {
   "id":265,
   "name":"test",
   "status":"UNPUBLISHED",
   "mediaId":"f3ad4670-8e83-11e9-8386-dbc3d191a79a",
   "createDate":"2019-06-14T09:08:20.560+0000",
   "endDate":null,
   "publisher":0,
   "duration":598658,
   "subscribers":[],
   "node":3
  }
 ]
}

200 OK

400 Object not found

500 Persist exception

REST API
Code Block
themeRDark
POST: /api/stream/history "application/json; charset=utf-8"
{
 "node":"3",
 "mediaId":"f3ad4670-8e83-11e9-8386-dbc3d191a79a",
 "name":"",
 "publisher":"",
 "status":""
}
Code Block
themeRDark
{
    "status": 200,
    "reason": "SUCCESS",
    "payload": [
        {
            "id": 265,
            "name": "test",

...

            "status": "

...

UNPUBLISHED",

...

            "mediaId": "

...

f3ad4670-

...

8e83-11e9-

...

8386-

...

dbc3d191a79a",

...

            "createDate": 

...

1560503300560,

...

            "endDate": null,

...

            "publisher": 0

...

,
            "duration": 598658,
            "subscribers": [],

...

            "node": 

...

3
        }
    ]
}

200 OK

400 Object not found

500 Persist exception

Where

...

  • node – node identifier
  • mediaId – media session identifier
  • name – stream name
  • publisher - publisher identifier (for played streams)
  • status – stream status mediaId – stream media session identifier(PENDING, PUBLISHING, PLAYING, UNPUBLISHED, STOPPED, FAILED)
  • id - stream identifier in backend server database
  • createDate – stream creation date
  • endDate – stream termination date
  • publisher - publisher identifier (for played streams)duration - длительность потока
  • subscribers - list of identifiers of subscribers (for published streams)node – node identifier in backend server database

If node Id is set, the response will contain only that node stream history information. If Id is not set, the response will contain all the streams history on backend server corresponding to the other query criteria.