Oauth2 client to connect to external service provider

[konstantinos_vassiliadis]

Hello experts,

I want to connect from SAP to resources provided by an external service using OAuth2.0 protocol and the Authorization Code grant type. I tested the whole configuration using POSTMAN and it works fine. However, when it comes to implementation in SAP ABAP AS I have gone through various guides and posts but I have the following questions:

1. the client profile should be DEFAULT or ABAP type? 

2. when configuring the client using transaction OA2C_CONFIG I have to specify the redirection URI server in the respective field. I understand that this should match the one specified when registering an application at the external provider site. However, what confuses me is that the placeholder <redirection URI> is non-editable and is produced based on the redirection URI server and it points to a service in SICF.

Does anyone have a link to a working example similar to the scenario I am describing?

Regards,

Konstantinos