Jumper Chen comments

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                                            Jumper Chen

ConnectError: WebSocketException: Connection to 'https://admin.heartlinkdating.com:0/socket.io/?EIO=4&transport=websocket#' was not upgraded to websocket

Most of the time, this issue is not caused by this library itself. Instead, it may be caused by a server configuration issue either on Nginx or Apache, or by...

ConnectError: WebSocketException: Connection to 'https://admin.heartlinkdating.com:0/socket.io/?EIO=4&transport=websocket#' was not upgraded to websocket

FYI Here is the solution: https://github.com/rikulo/socket.io-client-dart/issues/319

Emit event not working

Have you checked this? - https://github.com/rikulo/socket.io-client-dart/blob/master/example/README.md

How to bind and unbind any event of socket ?

for example?

[timeout] error occured while calling socket connection

which version are you using?

socket.onConnect shows connect but when i cal socket.emit it disconnect the socket

Were you using the version correctly? https://github.com/rikulo/socket.io-client-dart#version-info

Solution for https and reverse proxy - WORKS

FYI: - https://socket.io/docs/v3/reverse-proxy/ - https://socket.io/docs/v4/reverse-proxy/

Solution for https and reverse proxy - WORKS

@Jimesh843 `transport=polling` only supports under web environment.

WebSocketException: Connection to 'https://api.capitalstake.com:0/socket.io/?EIO=4&transport=websocket#' was not upgraded to websocket I/flutter ( 4747): connect_error

Have you tried with `https://...` instead of `wss://...`

WebSocketException: Connection to 'https://api.capitalstake.com:0/socket.io/?EIO=4&transport=websocket#' was not upgraded to websocket I/flutter ( 4747): connect_error

Do you use Nginx? If so, please add upgrade header setting to it.