Issue Creating OAuth Client in SAS Viya 3.5 – Unauthorized Response

[SatishR]

I am trying to register a new OAuth client in our SAS Viya 3.5 environment using the following command:

curl -k -X POST "https://Host_Name/SASLogon/oauth/clients" \
-u "sas:xxxxxxxx" \
-H "Accept: application/json" \
-H "Content-Type: application/json" \
-d '{
"client_id": "myapi",
"client_secret": "Admin@12345",
"scope": ["openid"],
"authorized_grant_types": ["client_credentials", "refresh_token"]
}'

However, I am consistently receiving the below error:

{"error":"unauthorized","error_description":"Full authentication is required to access this resource"}

[gwootton · Accepted solution]

You need to get an oauth token before you can create a client. This request is failing because you are not providing an authorization header.
This blog explains the process well, you are performing step 2 there without having performed step 1.
https://blogs.sas.com/content/sgf/2023/02/07/authentication-to-sas-viya/