Enforcing user quota in Firebase -

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what best way enforce per-user quota on data stored in firebase?

my users able create documents unique id on following path:

/documents/id/contents

the id uniquely generated using transaction. id reserved using verification rule (contents.id == auth.id)

however how prevent user spamming db (by randomly allocating ids themselves)? can have rule counts number of ids allocated user , rejects them if count high?

there's no way this.

in cases enumerate children allowed exist (child1, child2, etc), , grant read / write each one. won't work large numbers though or ids don't know beforehand.

we have plans built features restrict number of allowed children , provide other features enforce quotas on users.


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