start()

in src/agent/protocol/grpc/clients/HeartbeatClient.ts [50:86]
34 lines of code
4 McCabe index (conditional complexity)

  start() {
    if (this.heartbeatTimer) {
      logger.warn(`
        The heartbeat timer has already been scheduled,
        this may be a potential bug, please consider reporting
        this to ${packageInfo.bugs.url}
      `);
      return;
    }

    const keepAlivePkg = new InstancePingPkg()
      .setService(config.serviceName)
      .setServiceinstance(config.serviceInstance);

    const instanceProperties = new InstanceProperties()
      .setService(config.serviceName)
      .setServiceinstance(config.serviceInstance)
      .setPropertiesList([
        new KeyStringValuePair().setKey('language').setValue('NodeJS'),
        new KeyStringValuePair().setKey('OS Name').setValue(os.platform()),
        new KeyStringValuePair().setKey('hostname').setValue(os.hostname()),
        new KeyStringValuePair().setKey('Process No.').setValue(`${process.pid}`),
      ]);

    this.heartbeatTimer = setInterval(() => {
      this.managementServiceClient.reportInstanceProperties(instanceProperties, AuthInterceptor(), (error, _) => {
        if (error) {
          logger.error('Failed to send heartbeat', error);
        }
      });
      this.managementServiceClient.keepAlive(keepAlivePkg, AuthInterceptor(), (error, _) => {
        if (error) {
          logger.error('Failed to send heartbeat', error);
        }
      });
    }, 20000).unref();
  }