Accessing sharepoint REST api using S2S authentication

Hi, I'm trying to access the SharePoint REST APIs (One-Drive for business) using the access token retrieved from S2S authentication flow (https://msdn.microsoft.com/en-us/library/azure/dn645543.aspx).
Currently, I'm getting the following exception:
he server was unable to process the request due to an internal error. For more information about
the error, either turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the <serviceDebug> configuration behavior) on the server in order to send the exception information back to the client, or turn on tracing as per the
Microsoft .NET Framework SDK documentation and inspect the server trace log
Is this scenario (app auth instead of delegate auth) support for those set of APIs?
Thanks

Hi,
According to your description, my understanding is that you want to access SharePoint Online One-Drive for business API using OAuth 2.0 authentication.
In summary, Rest API can work with OAuth 2.0 authentication.
Here are some detailed articles about access Rest API with OAuth 2.0 authentication:
OAuth 2.0 Compliant REST API
Securing RESTful Web Services with OAuth2
About accessing One-Drive for business with Rest API, you can refer the article below:
Access OneDrive for Business using the SharePoint 2013 APIs
About the error message, I suggest you can use Fiddler to track the web request to find detailed message:
Fiddler
Thanks
Best Regards,
Jerry Guo
TechNet Community Support
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Hi Chris,
Thanks for the reply,Here iam using different files to be uploaded in library.
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Accessing sharepoint REST api using S2S authentication

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