Signal R not reconnects and getting random errors after some ideal time.

[rahulraibit]

Hi There, I am using this library, it works well but I am facing some random issue which keeps coming after 40 to 45 min of ideal time.

Scenario 1. If I will disconnect the network for 40 to 45 min then in my application I get the below error.

main.07ea5b4b6aca92fa3441.js:1 listener next() called. main.07ea5b4b6aca92fa3441.js:1 Object 4 main.07ea5b4b6aca92fa3441.js:1 Object 3 main.07ea5b4b6aca92fa3441.js:1 Object 2 main.07ea5b4b6aca92fa3441.js:1 Object 2 main.07ea5b4b6aca92fa3441.js:1 Object 2 main.07ea5b4b6aca92fa3441.js:1 SignalRConnection.proxy.on invoked. Calling listener next() ... main.07ea5b4b6aca92fa3441.js:1 New event Array(2) main.07ea5b4b6aca92fa3441.js:1 listener next() called. main.07ea5b4b6aca92fa3441.js:1 SignalRConnection.proxy.on invoked. Calling listener next() ... main.07ea5b4b6aca92fa3441.js:1 New event Array(2) main.07ea5b4b6aca92fa3441.js:1 listener next() called. main.07ea5b4b6aca92fa3441.js:1 Object 2 main.07ea5b4b6aca92fa3441.js:1 SignalRConnection.proxy.on invoked. Calling listener next() ... main.07ea5b4b6aca92fa3441.js:1 New event Array(2) main.07ea5b4b6aca92fa3441.js:1 listener next() called. main.07ea5b4b6aca92fa3441.js:1 Error SignalR Error: The client has been inactive since Fri May 24 2019 16:11:04 GMT+0530 (India Standard Time) and it has exceeded the inactivity timeout of 50000 ms. Stopping the connection.

Scenario 2. Not sure why but sometimes I have observed that I also get the below errors even if my system is connected to the internet all the times.

t.handleError @ main.07ea5b4b6aca92fa3441.js:1 main.07ea5b4b6aca92fa3441.js:1 Error: Uncaught (in promise): Error: SignalR: Connection must be started before data can be sent. Call .start() before .send() Error: SignalR: Connection must be started before data can be sent. Call .start() before .send() at init.send (scripts.9a12937328252374e408.js:1) at init.invoke (scripts.9a12937328252374e408.js:1) at main.07ea5b4b6aca92fa3441.js:1 at new e (polyfills.a69b3298b70e1661b3fc.js:1)

I want to understand if anyone has faced a similar issue and if yes how to solve it. Also, let me tell you that for reconnect I am subscribing on status change and on disconnect I am trying to connect to signal r here is my below code.

const conx = this.signalR.createConnection(); conx.status.subscribe((s) => { // Connect the Signal R if its disconnected if (s['name'] === 'disconnected') { setTimeout(() => { this.adalService.acquireToken(this.acquireTokenurl).subscribe( token => { if (token) { this.connectSignalR(conx, token); } }); }, signalConnectionRetry); } });

[RajakumarSidhan]

I m also running in to similar issue.
ERROR Error: Uncaught (in promise): Error: SignalR: Connection must be started before data can be sent. Call .start() before .send()
Error: SignalR: Connection must be started before data can be sent. Call .start() before .send()
at hubConnection.fn.init.send (node_modules\signalr\jquery.signalR.js:871:1)
at init.invoke (node_modules\signalr\jquery.signalR.js:2952:1)
at ng2-signalr.js:183:1
at new ZoneAwarePromise (zone.js:1349:1)
at SignalRConnection.invoke (ng2-signalr.js:182:1)