GmailApiQuickstart -

Question

I am embarrassed that I\'m simply failing with an example piece of code, but I\'ll blame it on the fact that it is late...

I have taken a copy and paste of: https://deve

Answer 1

Right, after some more research (asking a colleague/genius), I found the problem. Basically the GoogleClientSecrets object was not being properly bound with the information from my client_secrets.json file. This meant that during authentication, objects were null resulting in the IllegalArgumentException.

So the original file which looked like this:

{
      "private_key_id": "zzz",
      "private_key": "-----BEGIN PRIVATE KEY-----\nxyz\n-----END PRIVATE KEY-----\n",
      "client_email": "1234@developer.gserviceaccount.com",
      "client_id": "1wdfghyjmp.apps.googleusercontent.com",
      "type": "service_account"
}

was edited to look like this:

{
    "web" : {
      "private_key_id": "zzz",
      "private_key": "-----BEGIN PRIVATE KEY-----\nxyz\n-----END PRIVATE KEY-----\n",
      "client_email": "1234@developer.gserviceaccount.com",
      "client_id": "1wdfghyjmp.apps.googleusercontent.com",
      "type": "service_account"
    }
}

This allowed me to progress through the code with authentication.

Hope this helps.