om een gepersonaliseerde navigatie te krijgen.
om een gepersonaliseerde navigatie te krijgen.
I am trying to implement the code grant flow with PKCE. The client ID I have is configured to use PKCE.
The URL accessed:
The URL return contains the code:
When exchanging the code for an access token returns a HTTP 400 with the body:
```
{"error":"invalid_grant"}
```
The request contains the `grant_type=authorization_code`, including the `code`, `client_id`, redirect_uri` and `code_verifier` as per the specification (https://docs.connect.visma.com/docs/native-applications).
There is no error code returned, so no way to see more information on the reason of the error.
What can be the cause of this issue?
Visma Software BV
HJE Wenckebachweg 200
1096 AS Amsterdam
Tel: 020-355 29 99
Copyright 2021 Visma Community. All right reserved.