🔥 ServerTimestamp isn't working with arrayUnion

[manicantic]

Issue

FieldValue serverTimestamp inside arrayUnion isn't working. Outside arrayUnion everything works fine.
await messageRef.update({array: firebase.firestore.FieldValue.arrayUnion({ message, timestamp: firebase.firestore.FieldValue.serverTimestamp(), senderId }) })

Also, on version 5.2.0 same code reproduce this :

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Environment

• Platform that you're experiencing the issue on:
  • iOS
  • Android
  • iOS but have not tested behavior on Android
  • Android but have not tested behavior on iOS
  • Both
• If known, the version of the platform are you experiencing the issue on:
  • API 27
• Operating System:
  • MacOS, version: N/A
  • Windows, version: Windows_NT x64 10.0.17134
  • Other, please specify: N/A
• Build Tools:
  • Android Studio 3.1.4
• React Native version:
  • 0.57.8
• React Native Firebase library version:
  • 5.1.1
• Firebase module(s) you're using that has the issue:
  • Authentication
  • Analytics
  • Cloud Firestore
  • Cloud Messaging (FCM)
  • Crashlytics
  • Dynamic Links
  • Functions Callable
  • Invites
  • Instance ID
  • Notifications
  • Performance Monitoring
  • Realtime Database
  • Remote Config
  • Storage
• Are you using TypeScript?
  • No
  • Yes, version: N/A
• Are you using Expo, e.g. ExpoKit?
  • No
  • Yes, I've not ejected
  • Yes, but I have ejected to ExpoKit
  • Yes, but I have ejected to vanilla React Native
  • Expo version: N/A

[Salakar]

Hey @manicantic this was resolved in v5.2.0, please could you upgrade, thanks.

Changelog & upgrade guide here: https://rnfirebase.io/docs/v5.x.x/releases/v5.2.0

[manicantic]

Hey @Salakar , I tried 5.2.0 and still got an error. If I have update with arrayUnion and serverTimestamp with transaction app instantly crashes ( code : await transaction.update(messageRef, { array: firebase .firestore .FieldValue .arrayUnion({ message, timestamp: firebase .firestore .FieldValue .serverTimestamp(), senderId }) }) ) ), and if update wihtout transaction I get this error :
Code for this : await messageRef.update({ array: firebase .firestore .FieldValue .arrayUnion({ message, timestamp: firebase .firestore .FieldValue .serverTimestamp(), senderId }) }) .
And first time I updated to 5.2.0 ( while I was writing this issue ) I updated document and firestore looked like this:

Also my app level build.gradle details :
implementation "com.google.firebase:firebase-core:16.0.6" implementation "com.google.firebase:firebase-auth:16.1.0" implementation "com.google.firebase:firebase-firestore:17.1.5"

[Salakar]

@manicantic hey, sorry I forgot to mention, the fix for v5.2.0 means that data gets passed correctly to Firestore - now that it's correctly passed it will give you that Error as this is the correct behaviour, none of the Firebase SDKs support serverTimestamp in arrayUnion/remove yet. E.g.: firebase/firebase-admin-node#336

References and other values work fine.

[julienreszka]

@Salakar "none of the Firebase SDKs support serverTimestamp in arrayUnion/remove yet"

"YET", does that mean that it will be supported eventually?

[edwardoverthere]

Not supported yet unfortunately!

[Asanta4]

still not supported yet unfortunately

[jdboris]

so is there a workaround? How do I add a server timestamp to an array?

[JasonBennett41]

I find it absolutely ridiculous that there is no mention of this in the documentation... what a frustrating afternoon. This issue resulted in app crash with no error msg for me in Flutter. It would take one person half a day to update the docs/SDKs to save thousands of collective hours of wasted time...