CODEWITHSUNDEEP
google-cloud-firestorefirebase-security
user8360241
user8360241

Reputation:

Validating arrays using Firestore rules

In my HTML page I have a group of five checkboxes. Their values are 1,2,3,4,5.

In the object to which those checkboxes belong I save them as an array. So if user selects options 2,4,5 I store it as [2,4,5].

I'm stuck at the spot when I try to validate that array in Firebase rules. Is there any way of doing validation like this?

I want to make sure an array like [5,6,7] does not go through the Firestore rules but something like [1,3,4,5] does.

Upvotes: 0

Views: 501

Answers (1)

Doug Stevenson
Doug Stevenson

Reputation: 317402

Array type fields in Firestore documents show up as List type objects in security rules. You can use its hasOnly method to determine if the List contains only certain elements.

request.resource.data.arrayField.hasOnly([1,2,3,4,5)

Upvotes: 1

Related Questions