Workaround/Solution on getting shipment documents via REST API

Summary:

Hello all,

Our team wants to fetch the documents for shipments in OTM. There are two types of the docs, BLOB and URL, the URL documents are public and can be accessed without OTM credentials, but the BLOB documents require authentication before download.

Is there any way to get the documents directly without inputting the credentials? I think this ACL: "REST - Document - View" should be available on the user, I've tried adding it on the User Role so that everyone having the role can access, but it seems not to be working.

Other workaround (not recommended because of creds leakage) I was able to find was putting credentials in the beginning of API call itself