Method constructor

mobile-magic/apps/worker/ws.ts:8–24

(url: string)

    private callbacks: Map<string, (data: VscodeMessagePayload) => void>;

    private constructor(url: string) {
        this.ws = new WebSocket(url);
        this.callbacks = new Map();
        this.ws.onmessage = (event) => {
            const { callbackId, ...data } = JSON.parse(event.data);
            const callback = this.callbacks.get(callbackId);
            if (callback) {
                callback(data);
            }
        };

        this.ws.onopen = () => {
            this.send(JSON.stringify({
                event: "api_subscribe",
            }));
        }
    }

    static getInstance() {
        if (!RelayWebsocket.instance) {