uptime-kuma/src/mixins/socket.js

import {io} from "socket.io-client";
import { useToast } from 'vue-toastification'
const toast = useToast()

let storage = localStorage;
let socket;

export default {

    data() {
        return {
            socket: {
                token: null,
                firstConnect: true,
                connected: false,
            },
            allowLoginDialog: false,        // Allowed to show login dialog, but "loggedIn" have to be true too. This exists because prevent the login dialog show 0.1s in first before the socket server auth-ed.
            loggedIn: false,
            monitorList: [

            ],
            importantHeartbeatList: [

            ]
        }
    },

    created() {
        socket = io("http://localhost:3001", {
            transports: ['websocket']
        });

        socket.on('monitorList', (data) => {
            this.monitorList = data;
        });

        socket.on('disconnect', () => {
            this.socket.connected = false;
        });

        socket.on('connect', () => {
            this.socket.connected = true;
            this.socket.firstConnect = false;

            if (storage.token) {
                this.loginByToken(storage.token)
            } else {
                this.allowLoginDialog = true;
            }

        });

    },

    methods: {
        getSocket() {
          return socket;
        },
        toastRes(res) {
            if (res.ok) {
                toast.success(res.msg);
            } else {
                toast.error(res.msg);
            }
        },
        login(username, password, callback) {
            socket.emit("login", {
                username,
                password,
            }, (res) => {

                if (res.ok) {
                    storage.token = res.token;
                    this.socket.token = res.token;
                    this.loggedIn = true;

                    // Trigger Chrome Save Password
                    history.pushState({}, '')
                }

                callback(res)
            })
        },
        loginByToken(token) {
            socket.emit("loginByToken", token, (res) => {
                this.allowLoginDialog = true;

                if (! res.ok) {
                    this.logout()
                    console.log(res.msg)
                } else {
                    this.loggedIn = true;
                }
            })
        },
        logout() {
            storage.removeItem("token");
            this.socket.token = null;
            this.loggedIn = false;

            socket.emit("logout", () => {
                toast.success("Logout Successfully")
            })
        },
        add(monitor, callback) {
            socket.emit("add", monitor, callback)
        },
        deleteMonitor(monitorID, callback) {
            socket.emit("deleteMonitor", monitorID, callback)
        },
        loadMonitor(monitorID) {

        }
    },

    computed: {

    }

}