Firebase Cloud Messaging test not working

Question

I am trying to get the Firebase Cloud Messaging to work. I am just trying a test for now. What I have done is everything in this post:

https://firebase.google.com/docs/cloud-messaging/js/client?authuser=0#retrieve-the-current-registration-token

Then at that end you see this:

messaging.getToken().then((currentToken) => {

I then copy this currentToken and use it as a test by going to Firebase (the website) > Grow (sidebar) > Cloud Messaging (sidebar) > Send your first message (button) > Fill in a 'Notification title' and 'Notification text' > Send test message (blue button to right) > Add the currentToken I copied from above OR check a previously added one > Test (button) ... (see screenshot below)

I assume after clicking the 'Test' button it should send a notification to my phone (where I allow notifications and got the token from). I tested this with my pc and did not get a response either. Using Chrome on my pc and laptop for what that matters.

What am I missing here?

Answer 1

I was missing an important part of adding the gcm_sender_id in the manifest.json. I followed this link exactly and it worked perfectly. You can use the Firebase Cloud Messaging testing platform instead of the Postman approach from the article:

https://codeburst.io/how-to-add-push-notifications-on-firebase-cloud-messaging-to-react-web-app-de7c6f04c920