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Get Document Id When Searching With Where Clause Firestore

I want to be able to get the document id of a document that I have just queried with a where clause in firestore. Here is an example that I have at the moment: db.collection('Users

Solution 1:

an example solution to what you're looking for can be found in the Firestore documentation:

db.collection("cities").where("capital", "==", true)
.get()
.then(function(querySnapshot) {
    querySnapshot.forEach(function(doc) {
        // doc.data() is never undefined for query doc snapshotsconsole.log(doc.id, " => ", doc.data());
    });
})
.catch(function(error) {
    console.log("Error getting documents: ", error);
});

You can simply call doc.id to retrieve the document's ID.

Source: https://cloud.google.com/firestore/docs/query-data/get-data

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