Is it possible to send a message to all clients without roomAPI

[Azhar Ali]

Hi,
I know there is a function to send a message to all clients using roomAPI and clients can receieve the message and process. Is the same possible using normal streams without using the roomAPI?
Any pointer to the example would be really helpful

thanks

 

[Max]

Good day.
You can use REST hooks to broadcast message to the connected clients as follows:
1) Use /connect REST hook to collect the client sessionId (you are probably already using /connect to authenticate users):

POST /EchoApp/connect HTTP/1.1
Accept: application/json, application/*+json
Content-Type: application/json;charset=UTF-8
Host: localhost:8081
Connection: keep-alive
Content-Length: 537
{
   "nodeId":"Hw47CFMBEchVOpBMDr29IxjudnJ1sjOY@192.168.1.101",
   "appKey":"defaultApp",
   "sessionId":"/192.168.1.103:15422/192.168.1.101:8443",
   ...
}

2) Use Session.sendData({"message": "hello"}) WebSDK API call to send message from broadcaster to WCS
3) Use /OnDataEvent REST hook to get this message on backend server, it should receive something like

POST /rest/my_api/OnDataEvent HTTP/1.1
Accept: application/json, application/*+json
Content-Type: application/json;charset=UTF-8
Host: 192.168.1.101
Connection: keep-alive
Content-Length: 218
{
    "nodeId":"Hw47CFMBEchVOpBMDr29IxjudnJ1sjOY@192.168.1.101",
    "appKey":"defaultApp",
    "sessionId":"/192.168.1.102:55839/192.168.1.101:8443",
    "operationId":"d1999750-fde9-11e6-9f1b-913210792931",
    "payload":{
        "message":"hello"
    }
}

4) Use REST API query /rest-api/data/send to send this message to all the connected clients (you should iterate through the list of clients sessionId):

POST /rest-api/data/send HTTP/1.1
Host: 192.168.1.101:8081
Content-Length: 201
Content-Type: application/json
{
    "nodeId":"Hw47CFMBEchVOpBMDr29IxjudnJ1sjOY@192.168.1.101",
    "operationId":"d1999750-fde9-11e6-9f1b-913210792931",
    "sessionId":"/192.168.1.103:15422/192.168.1.101:8443",
    "payload":{
        "message":"hello"
    }
}

 

[Azhar Ali]

Hi Max,

Thank you for getting back to me.
I understood the first three points. I am not sure about the forth step, what would be the URL address for /rest-api/data/send call? Which app would it be?

 

[Max]

Good day.
/data/send is WCS REST API call, its URL is http://wcs_address:8081/rest-api/data/send via HTTP and https://wcs_address:8444/rest-api/data/send via HTTPS, where wcs_address is WCS hostname. See also REST API doc for details.

 

[Azhar Ali]

Brilliant, thanks.