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How to get firebase id

Anyone know how to get the Firebase unique id? I’ve tried name(), name, key, key(). Nothing works.

I am able to see the data but I have no idea how to get the id back. I need it.

//Create new customers into firebase 
function saveCustomer(email) {

  firebase.database().ref('/customers').push({
    email: email
  });

  firebase.database().ref('/customers').on("value", function(snapshot) {
    console.log(snapshot.val());
    console.log(snapshot.value.name());
  }, function(errorObject) {
    console.log("The read failed: " + errorObject.code);
  });


}

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Answer

The call to push will return a Firebase reference. If you are using the Firebase 3 API, you can obtain the unique key of the pushed data from the reference’s key property:

var pushedRef = firebase.database().ref('/customers').push({ email: email });
console.log(pushedRef.key);

The key for the pushed data is generated on the client – using a timestamp and random data – and is available immediately.

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