Unable to get data from firebase using the first array value

Question

I am not able to get the email list data from firebase. All it shows is "null".

Although the variable agent0 shows the correct selected data from the array, I can't seem to use it with the firebase reference.

How can I use one of the array values to get data from firebase?

var agent0 = agents[0];
window.alert(agent0);

var refPullEmail = firebase.database().ref("Forwarder Contact").child("All Origins").child(agent0);

refPullEmail.once("value")
    .then(function(snapshot) {

        var agentEmail_0 = snapshot.child("EmailList").val(); //return list emails

        window.alert(agentEmail_0);

    });

Database :

added the database all i want to get from this is the Email list — Sillenxy
– Sillenxy, Commented May 19, 2019 at 12:24

Peter Haddad · Accepted Answer · 2019-05-19 14:16:26Z

To retrieve the EmailList try the following:

var refPullEmail = firebase.database().ref("Forwarder Contact").child("All Origins").child("ALLIANCE");

refPullEmail.once("value")
.then(function(snapshot) {

    var agentEmail_0 = snapshot.child("EmailList").val(); //return list emails

    window.alert(agentEmail_0);

});

The above will retrieve the EmailList under node ALLIANCE.

If you want to retrieve all the EmailList under node All Origins, then try the following:

var refPullEmail = firebase.database().ref("Forwarder Contact").child("All Origins");

refPullEmail.once("value")
.then(function(snapshot) {
   snapshot.forEach(function(childSnapshot){

    var agentEmail_0 = snapshot.child("EmailList").val(); //return list emails

    window.alert(agentEmail_0);

   });
});

Here, you iterate inside the direct children of All Origins and retrieve the EmailList.

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