I am trying to upload file from local to GCP bucket through cloud storage Rest API (https://storage.googleapis.com/upload/storage/v1/b) using Postman.
I am using Bearer Token for authorization and running $(gcloud auth print-access-token) command on GCP Shell to generate that token every time.
I need to know, how to auto generate that token from Postman while sending request ?
Is there any way to execute $(gcloud auth print-access-token) every time as a Pre-request Script within Postman ?
Thanks
I'm not very good with postman, but I think you can run pre-request to get token and reuse it in the subsequent request.
If so, you can get inspiration from the gcloud auth print-access-token command by adding the --log-http param to visualize the request performed by the CLI and to reproduce them in Postman.
EDIT 1
If you perform the request, you can see that a post is performed to this URL https://oauth2.googleapis.com/token
To reproduce the call, you can try with a curl
curl -X POST -d "grant_type=refresh_token&client_id=32555940559.apps.googleusercontent.com&client_secret=ZmssLNjJy2998hD4CTg2ejr2&refresh_token=<REFRESH_TOKEN>&scope=openid+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fuserinfo.email+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fcloud-platform+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fappengine.admin+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fcompute+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Faccounts.reauth" https://oauth2.googleapis.com/token
In this call, you need your REFRESH_TOKEN, that you can get here
cat ~/.config/gcloud/legacy_credentials/<YOUR EMAIL>/adc.json