camstreamerlib
Version:
Helper library for CamStreamer ACAP applications.
63 lines (62 loc) • 1.71 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.WsClient = void 0;
const REFRESH_TIMEOUT = 5_000;
class WsClient {
getUrl;
getAuthToken;
isDestroyed = false;
ws = null;
restartTimeout = null;
constructor(getUrl, getAuthToken) {
this.getUrl = getUrl;
this.getAuthToken = getAuthToken;
}
init() {
if (this.isDestroyed) {
return;
}
this.destroyWebsocket();
const ws = new WebSocket(this.getUrl(), 'events');
ws.onopen = async () => {
try {
const token = await this.getAuthToken();
ws.send(JSON.stringify({ authorization: token }));
}
catch (error) {
console.error('Error sending auth token:', error);
ws.close();
}
};
ws.onmessage = (e) => this.onmessage(e);
ws.onclose = () => {
this.restartTimeout = setTimeout(() => this.init(), REFRESH_TIMEOUT);
};
this.ws = ws;
}
send = (msg) => {
this.ws?.send(msg);
};
onmessage = (_) => { };
destroy = () => {
this.isDestroyed = true;
this.destroyWebsocket();
};
destroyWebsocket() {
if (this.restartTimeout) {
clearTimeout(this.restartTimeout);
this.restartTimeout = null;
}
if (!this.ws) {
return;
}
this.ws.onmessage = null;
this.ws.onopen = null;
this.ws.onclose = null;
if (this.ws.readyState === this.ws.OPEN) {
this.ws.close();
}
this.ws = null;
}
}
exports.WsClient = WsClient;