FIREBASE WARNING: Invalid query string segment - Warning when deploying simple Firebase Cloud function

Question

This morning I started noticing a large amount of \"FIREBASE WARNING: Invalid query string segment\" errors in my functions log. In an attempt to figure out wha

Answer 1

After talking with Firebase support, I learned this bug was introduced in the npm dependency @firebase/database: 0.1.10. You will have this dependency if you also have the latest firebase-admin dependency.

The warning

shouldn't have any impact on the function's overall processing.

If you want to remove the warning, you can force the npm dependency of @firebase/database: 0.1.9. I tested this adjustment and the warning was removed from my Firebase Console Logs.

The support agent also stated the fix has been made, but not released, so I would expect @firebase/database: 0.1.11+ to not experience this bug.