Firebase is not setting data with browser API

Question

Here's the code I have to set some data:

firebase.database().ref(key).set(val);

which returns

Promise {[[PromiseStatus]]: "pending", [[PromiseValue]]: undefined}

It suggests that I can pass it a then/catch handler, but writing:

log = function(x) {console.log(x)
firebase.database().ref(key).set(val).then(log).catch(log)

has the exact same effect (nothing is returned/printed either way)

The wierd thing is that this intermittently works, I just can't figure out why.

I use these APIs frequently, including with promises like yours. What environment are you running the code in? Can you set up a jsbin that reproduces the problem, so that I can give it a try? — Frank van Puffelen
– Frank van Puffelen, Commented Aug 25, 2016 at 1:23
@FrankvanPuffelen It seems like set doesn't return anything, even in the promise, but it does actually work. it's get that actually passes a value to the promise. — max pleaner
– max pleaner, Commented Aug 25, 2016 at 5:43

Ronnie Smith · Accepted Answer · 2016-08-25 02:46:18Z

1

.set and .update are both thenable.

function update(node,key,value){
    var ref = firebase.database().ref('/');
    var obj = {};
    obj[key] = value;
    ref.child(node).update(obj)
    .then(function() {
        console.log('Update Ran Successfully');
    });       
}

answered Aug 25, 2016 at 2:46

Ronnie Smith

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