It should work but it doesn't.

[Tvde1]

The Serial monitor no longer outputs "disconnected". I think it connects but idk why it won't work.

My server:

const server = http.createServer((request, response) => {  
    response.writeHeader(200, {'Content-Type': 'text/html'});  
    response.write(html);
    response.end(); 
});
server.listen(80);
const io = socketio.listen(server);

io.on('connection', socket => {
    console.log('New client.'); //This DOES log.
    socket.on('sample', sample => {
        console.log('Received: ' + sample);
    });
});

And my client

typedef struct Config {
    String host = "192.168.2.5";
    int port = 80;
};

Config config;
SocketIoClient socket;

void setup() {
    //I am connected to wifi
    socket.begin(config.host.c_str(), config.port);
    socket.on("connect", event);
    socket.on("disconnect", [](const char* a, size_t b){});

}

void loop() {
    socket.loop();
    delay(1000);
    socket.emit("sample", "\"100\"");
}

I can't find why this won't work.

[timum-viw]

Could you elaborate what exactly does not work? Is it throwing errors or does it simply not log the event? What output does the console give you?

[Tvde1]

It doesn't output anything

[Tvde1]

It used to output something like

[SioC] disconnect
1 event not found

So I guess it is connected but it doesn't connect.

Also event is just

void event(const char * a, byte_t b) {
    Serial.println("Connected to Socket.io server.");
}

[timum-viw]

so you see the client connect at your server, but the console for the esp remains empty?

[Tvde1]

Yes, exactly that

[Tvde1]

Is this lib outdated?

[Bhupesh-V]

Yes, exactly that

Any solutions I 'm facing the same problems