PUT files to Google Cloud Storage (GCS) via Signed URLs

Question

I am trying to use \"signed URLs\" to access/upload files to Google Cloud Storage (GCS).

Followed the instructions at https://developers.google.com/storage/docs/acce

Answer 1

Finally managed to PUT files to Google Cloud Storage using signed URLs. This was done by creating a simple Java program to simulate:

• Server to sign & encode a string as signature.
• Uploader as an unauthenticated user submitting the PUT request using only the signature provided by Server. Browser is simulated using Apache's HTTP Client library.

You can see the demo app here.

I do not really understand why it did not work when I submitted through Chrome's Postman extension.