Log Firebase events offline and online in Android


Amit:

If I log an event offline and then batch send it online to Firebase, will the event date be the same as the send or log date?

Alex Momo:

Neither Cloud Firestore nor Firebase Realtime Database store date and time in metadata. If you need this functionality, you should add a timestamp attribute to each document/node separately. This actually represents FieldValue.serverTimestamp() in the case of Cloud's FireStore and ServerValue.TIMESTAMP in the case of Firebase Realtime Database.

Also keep in mind that both types of timestamps are generated on the server. In the case of Cloud Firestore, it's an Dateobject; in the case of Firebase Realtime Database, longit 's a value representing the time (in milliseconds) since the Unix epoch.

If this kind of property exists in your database and is set/modified once an object has been added/changed, the date and time of the property is the date and time the device was brought back online since the timestamp is fully generated by Firebase server. and to answer your question:

Is the event date the same as the date it was sent or recorded?

This will be the time sent rather than recorded .

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