Cloud Functions for Firebase iterate through a child node

Question

I just started to use firebase Functions and I am new to the node.js environment, can somebody tell how to iterate through a child node and get the child values.

Cloud Functions for Firebase allow for quite a broad set of use-cases. Without seeing the minimal code that reproduces where you are stuck it is unlikely that we'll be able to answer better than what the documentation already does. — Frank van Puffelen
– Frank van Puffelen, Commented Apr 15, 2017 at 5:38

Diego P · Accepted Answer · 2017-04-17 02:38:01Z

7

see this example:

 const parentRef = admin.database().ref("path"); return parentRef.once('value').then(snapshot => { const updates = {}; snapshot.forEach(function(child) { updates[child.key] = null; }); return parentRef.update(updates); });

answered Apr 17, 2017 at 2:38

Diego P

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2 Comments

Fayza Nawaz Over a year ago

This code will simply remove all the data from my path. So why would i want that?

Diego P Over a year ago

It's just an example of how to iterate through a child node and get the child values

Bob Snyder · Accepted Answer · 2017-04-14 20:28:04Z

Have you looked through the Cloud Functions for Firebase Samples? They contain many helpful examples of common operations. The code in this sample shows some of what you are looking for.

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