About "No more implicit connection to the default namespace"

[hnxzc]

How to connect to the main namespace or other custom namespaces without "socket.io-client"?

I am developing a wechat micro program, any third party framework is not supported.

Before 3.x, I can connect socket.io server like this
wx.connectSocket({ url: 'ws://127.0.0.1:3000/socket.io/?EIO=3&transport=websocket' })

But now it does not work, connection will always be closed after 45000ms, because I cannot successfully joined a namespace before the "connectTimeout" expired.

[darrachequesne]

You need to send a CONNECT packet: 40.

4 => Engine.IO "message" type
0 => Socket.IO CONNECT type

Edit: or 40/my-custom-namespace,, for a custom namespace

More information here: https://github.com/socketio/socket.io-protocol

[hnxzc]

Thanks!!!