Sign google cloud storage blob using access token with POSTMAN

Solution 1:

I finally found a solution to my problem by changing the URL directly to : https://iamcredentials.googleapis.com/v1/projects/-/serviceAccounts/11483096708985xxxxxxxx:signBlob

It seems that using gRPC Transcoding was a problem on Postman...

Have a good day,

Sincerely

Théo.