Hello,
I am trying to consume an Infor Data Lake API , which gives me the version of it, through a third party application developed in .NET. The link to the resource is on GitHub: https://github.com/infor-cloud/ion-api-sdk

This is the project in Visual Studio:

But, I am unable to obtain such a resource. This is the code of the application we are interested in:
#region Environment properties
private const string ClientId = "For security reasons I cannot post this information But you can be sure that the information is correct.";
private const string ClientSecret = "For security reasons I cannot post this information But you can be sure that the information is correct.";
private const string OAuth2TokenEndpoint = "">mingle-sso.inforcloudsuite.com:443/.../token.oauth2";
private const string OAuth2TokenRevocationEndpoint = "">mingle-sso.inforcloudsuite.com:443/.../revoke_token.oauth2";
private const string OAuth2AuthorizationEndpoint = "">mingle-sso.inforcloudsuite.com:443/.../authorization.oauth2";
private const string IONAPIBaseUrl = "">mingle-ionapi.inforcloudsuite.com/.../v2";
#endregion
#region Installation specific properties
private const string RedirectUri = "oob://localhost/wpfclient"; //I don't know what this means
#endregion
In the execution of the program:

1. It opens a window to log in but I get this error:

2. I should have obtained the token with step 1.
Up to this point it would be sufficient to have consumed the resource.
Please Help.
Thank you for advance.
By the way, I did exactly the same thing in Postman and it did work.
