gun call-/fallback

gun.callfallback.ts

private callFallback<T> (functionName: 'once'|'load', timeout: number, defaultValue: T): Promise<T> {
    return new Promise(resolve => {
      let timeoutCalled = false;
      const stopTimeout = setTimeout(() => {
        timeoutCalled = true;
        this.zone.run(() => resolve(defaultValue));
      }, timeout);

      this.gun[functionName](data => {
        if (timeoutCalled) {
          return;
        } else {
          clearTimeout(stopTimeout);
        }

        this.zone.run(() => resolve(data as T));
      });
    });
  }