How to store sub-data in Firebase? (For an online quiz app)

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How to Search any tag in Firebase?

In simplest terms, this should work.... assuming you have no authentication rules setup (so data is read/write=true) say your data structure is like this: users <<top level project bucket |-167981 |-234:"hello" |-176584 |-123:"goodbye" |-158394 |-123:"goodmorning" |-167834 |-345:"goodevening" and you want to return the data associated with the tags 123. You need to go into the rules and set this: "users": { ".read": true,…