What Bearer token should I be using for Firebase Cloud Messaging testing?

Question

I am trying to send a test notification using Firebase Cloud Messaging via Postman. I\'m doing a POST to this url

https://fcm.googleapis.com/v1/projects/[my         


        

Answer 1

You have to generate new access token in Postman.

First, ensure you have enabled FCM API in Google Developer Console. Than go to Google Developer Console -> APIs & Services -> Credentials. Look at "OAuth 2.0 client IDs" section. There should be at least one item in list. Download it as json file.

In Postman open "Authorization" tab, select Type = "OAuth 2.0" than click "Get New Access Token". Dialog appears.

Fields:

Token Name - type what you want

Grant Type = Authorization Code

Callback URL = redirect_uris from downloaded json

Auth URL = auth_uri

Access Token URL = token_uri

Client ID = client_id

Client Secret = client_secret

Scope = "https://www.googleapis.com/auth/firebase.messaging"

State - leave empty

Client Authentication = default, Send As Basic Auth Header

Click "Request Token" and that's it.