_createDebuggerConnectionWSServer()

in packages/metro-inspector-proxy/src/InspectorProxy.js [193:221]

• 25 lines of code
• 7 McCabe index (conditional complexity)

  _createDebuggerConnectionWSServer() {
    const wss = new WS.Server({
      noServer: true,
      perMessageDeflate: false,
    });
    // $FlowFixMe[value-as-type]
    wss.on('connection', async (socket: WS, req) => {
      try {
        const query = url.parse(req.url || '', true).query || {};
        const deviceId = query.device;
        const pageId = query.page;

        if (deviceId == null || pageId == null) {
          throw new Error('Incorrect URL - must provide device and page IDs');
        }

        const device = this._devices.get(parseInt(deviceId, 10));
        if (device == null) {
          throw new Error('Unknown device with ID ' + deviceId);
        }

        device.handleDebuggerConnection(socket, pageId);
      } catch (e) {
        console.error(e);
        socket.close(INTERNAL_ERROR_CODE, e);
      }
    });
    return wss;
  }