Google for webmasters API：如何模拟使用服务器到服务器请求？

Question

I can access the list of websites with the google API for webmasters using an access token granted via web service request and now I'd like to do it via a server to server request .

After giving the permission to a server account to access the list I cannot use setAssertionCredentials properly using the following scope:

'https://www.googleapis.com/auth/webmasters'

Case 1

when impersonating the user account:

$cred->sub = 'user.account@gmail.com';

the PHP client returns

'Error refreshing the OAuth2 token, message: '{ "error" : "unauthorized_client", "error_description" : "Unauthorized client or scope in request." }

Case 2

Without impersonating the user account the PHP client get an empty array

Question

How to impersonate a user using a server to server Google for webmasters API request?

Related contents without answer

• https://productforums.google.com/forum/#!topic/webmasters/S091ofvCVR4

• https://developers.google.com/identity/protocols/OAuth2ServiceAccount#delegatingauthority

• Google drive service account and "Unauthorized client or scope in request"

Answer 1

I would say that to do it via a server to server request would make some troubles.

As you can get it via web service request, you can initiate an external trigger to your php function and put the data in json on Google Cloud Storage (GCS) as public , so you can access the data you need via a server to server request and delete it immediately when it is done.