Go Chat Server

Simple chat server with WebSocket in Go

Usage

From client do all your requests sending an object with key type to request various actions to the server and payload to send the content.

type:"login"

Add the user to the chat. payload keys:

• name: Name of the user

type:"message"

Send message from user. payload keys:

• text: Body of message

User leaves the chat automatically on closed connection

Examples

Login

ws.addEventListener("open", e => {
    var name = prompt("Chose username", "");
    var data = {
        type: "login",
        payload: {
            name
        }
    }
    ws.send(JSON.stringify(data))
});

Send message

form.addEventListener("submit", e => {
    e.preventDefault()
    var msg = document.getElementById("msg").value
    var data = {
        type: "message",
        payload: {
            text: msg
        }
    }
    ws.send(JSON.stringify(data))
    e.target.reset()
});

Receive message

ws.addEventListener("message", e => {
    var d = JSON.parse(e.data)
    const {type, payload} = d
    switch(type) {
        case "message": //or "admin_message" for admin messages
            var p = document.createElement("p");
            p.textContent = `{payload.user.name}:{payload.text}`;
            chatContainer.append(p);    
            break
        ...
    }
});