Add support for firebase.firestore.FieldValue.serverTimestamp()

[vincentdsf]

Your Environment

• Plugin version: 0.1.0

• Platform: iOS

• OS version: iOS13

• Device manufacturer / model: emulator

• Cordova version (cordova -v): 9.0.0 (cordova-lib@9.0.1)

• Cordova platform version (cordova platform ls): Installed platforms: ios 5.1.1 Available platforms: android ^8.0.0 browser ^6.0.0 electron ^1.0.0 osx ^5.0.0 windows ^7.0.0

• Plugin config provided to #ready:

  My App starts with ready on App start with reset:true and configures Plugin after receiving additional information that need to be stored with the Position.
  Ready:
  BackgroundGeolocation.ready({
          reset: true,
          disableLocationAuthorizationAlert: true
      }
  Config:
  BackgroundGeolocation.setConfig({
          // Logging / Debug config
          debug: false, //  enable this hear sounds for background-geolocation life-cycle.
          logLevel: BackgroundGeolocation.LOG_LEVEL_VERBOSE,
          // Geolocation config
          desiredAccuracy: BackgroundGeolocation.DESIRED_ACCURACY_HIGH, // Desired accuracy in meters.
          triggerActivities: "in_vehicle",
          disableElasticity: true, // To make sure one App-User only creates a max. amount of position we can specify per day
          distanceFilter: 1000,
          fastestLocationUpdateInterval: 5 * 60 * 1000,
          disableLocationAuthorizationAlert: true,
          geofenceProximityRadius: 500,
          // Application config
          disableStopDetection: true,
          pausesLocationUpdatesAutomatically: false,
          stopOnTerminate: false,
          startOnBoot: true,
          foregroundService: true,
          enableTimestampMeta: true,
          reset: true, //  If you wish to force the #ready method to always apply the supplied config {}, you can specify reset: true
          notification: {
              title: 'Tracking aktiviert!',
              text: 'GPS Hintergrundtracking wurde aktiviert.'
          },
          params: {
              some params..
                               firestoreTimestamp: firebase.firestore.FieldValue.serverTimestamp()
      },

Expected Behavior

When trying to pass in params as parameter firestoreTimestamp: firebase.firestore.FieldValue.serverTimestamp() I want the Position-Doc to be successfully stored in Firstore with the Serverside Timestamp.

Actual Behavior

The following error comes and positions dont get stored in Firestore: WARN: - BackgroundGeolocation configuration error: TypeError: JSON.stringify cannot serialize cyclic structures.

Steps to Reproduce

1. Add a parameter or extra field with value firebase.firestore.FieldValue.serverTimestamp() or FieldValue.serverTimestamp()

Context

I want Firestore Documents created by Background Plugin to have a timestamp created on server-side. If the user changes the phones time settings, the positions become invalid if an application depends on the correct timestamp.

Debug logs

WARN: - BackgroundGeolocation configuration error: TypeError: JSON.stringify cannot serialize cyclic structures.

Logs

``` PASTE_YOUR_LOGS_HERE ```

Anything else I can do to achieve my goal or is this something that needs to be implemented?

[vincentdsf]

Updated Issue with more information

[christocracy]

You can't do what you're attempting to do.

Use Firebase Functions to set server timestamp.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. You may also mark this issue as a "discussion" and I will leave this open.

[stale[bot]]

Closing this issue after a prolonged period of inactivity. Fell free to reopen this issue, if this still affecting you.