1. I have nginx running as a reverse proxy. I would like to add a Key to Google Cloud storage. Can you do this in the nginx.conf. Then the nginx proxy would work as a client requesting the Google Cloud Store?

2. I am saving the image with a go client and it gives me a SelfLink which I save in my database. But the SelfLink differ from the link in Google developer Console. I guess because of the account login.

Link from Google Console(note that I have used {encoding} instead of the real encoding):

https://{encoding}-apidata.googleusercontent.com/download/storage/v1_internal/b/test-test/o/imgres.jpg?qk={encoding}

SelfLink

https://www.googleapis.com/storage/v1/b/test-test/o/imgres.jpg

What kind of key should I use together with the SelfLink to access Google Cloud Store. The SelfLink just gives me:

{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "required",
    "message": "Login Required",
    "locationType": "header",
    "location": "Authorization"
   }
  ],
  "code": 401,
  "message": "Login Required"
 }
}

How should I use this(SelfLink) link together with what key?

Thanks in advance