Firebase cloud functions stopped working - event.data undefined

Question

I have some cloud functionsbut they suddenly stopped working, now I\'m getting event.data undefined

exports.newMessageReceived = functions.database.ref(\'/me         


        

Answer 1

Cloud functions were updated to version 1.0, you can check here for more info:

https://firebase.google.com/docs/functions/beta-v1-diff#realtime-database

Regarding the question, you need to change the code into this:

exports.newMessageReceived = functions.database.ref('/messages/{pushId}').onWrite((change,context) => {

if (change.before.exists() || !change.after.exists() ) {
    //Do nothing if data is edited or deleted
    console.log('Message edited or deleted - skip');
    return;
  }

}

onWrite now has two parameters change and context. Change has before and after properties, and before is equivalent to previous

Also change and before can use the methods listed here:

https://firebase.google.com/docs/reference/admin/node/admin.database.DataSnapshot

Answer 2

I had same issue.

This is a firebase documentation showing the changes that have been made on the new v1

https://firebase.google.com/docs/functions/beta-v1-diff