javascript

javascript

"use strict";

fetch("...", {method: "POST"})
    .then(result => result.json())
    .then(result => {
        let ws = new WebSocket("..." + result.connectionId);

        ws.onopen = () => {
            ws.send(JSON.stringify({...}));
            ws.send(JSON.stringify({...}));
        };

        ws.onmessage = (event) => {
            let result = JSON.parse(event.data);
            if (result.type === 3) {
                let event = new CustomEvent('customevent', {'detail': result});
                document.dispatchEvent(event);
            }
        };
        
        ws.onerror = (error) => console.log(error);
        ws.onclose = (event) => event.wasClean ? console.log('Connection is closed!') : console.log('Reset connection!');
    })
    .catch(error => console.error(error));

document.addEventListener('customevent', (result) => console.log(result));