Is there any way to add an auto-field in firestore?

[Roy Tubic]

Hey everyone,

I'm trying to create a chat application using firestore, but I'm having an issue with chat histories. There currently is no field for a uid based on who you're your message is being sent to, so I'm unable to filter the chat history on a connection of the two uid's.

If I could add an auto field that picks up the receiver uid, then I think I could resolve this.

Is there any way to set up this field to automatcially pick up this the cloud firestore database?

Cheers

[Kato Richardson]

Hi Roy,

There's no automated way to achieve this, but you can enforce that users enter their UID by doing something like the following in your rules:

allow write: if request.auth.uid == resource.data.uid

☼, Kato

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Kato Richardson |

Developer Programs Eng |

kato...@google.com |

775-235-8398