How to make a simple request with Postman, using api_key protocol?

Question

I need to use gmail API functions to send an email to somebody. I tried using tokens but i didn't manage, so now im trying with api_key. Please help!

Answer 1

You may refer with this thread. It stated that the access token needs to be present in the POST-request you send the mail with. The Oauth2-procotol dictates that you need to either pass along a header Authorization: Bearer <ACCESS_TOKEN>, or a parameter access_token=<ACCESS_TOKEN>.

Also make sure that you are generating Credentials for the right app type. If you're using Postman to test Google oAuth 2 APIs, select Credentials->Add credentials->OAuth2.0 client ID->Web Application.