Spring Boot (v2.1.6) Microsoft Planner Integration

%3CLINGO-SUB%20id%3D%22lingo-sub-770178%22%20slang%3D%22en-US%22%3ESpring%20Boot%20(v2.1.6)%20Microsoft%20Planner%20Integration%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-770178%22%20slang%3D%22en-US%22%3E%3CP%3EI%20have%20a%20stackoverflow%20and%20a%20MS%20Developer%20Network%20post%20at%20the%20below%20links%3A%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3E%3CA%20href%3D%22https%3A%2F%2Fstackoverflow.com%2Fquestions%2F57047044%2Fspring-boot-v2-1-6-microsoft-planner-integration%22%20target%3D%22_blank%22%20rel%3D%22nofollow%20noopener%20noreferrer%20noopener%20noreferrer%22%3Ehttps%3A%2F%2Fstackoverflow.com%2Fquestions%2F57047044%2Fspring-boot-v2-1-6-microsoft-planner-integration%3C%2FA%3E%3C%2FP%3E%3CP%3E%3CA%20href%3D%22https%3A%2F%2Fsocial.msdn.microsoft.com%2FForums%2Fen-US%2F2245bbd4-e431-45db-a86d-af5417e61876%2Fspring-boot-v216-microsoft-planner-integration%3Fforum%3DApplicationInsights%22%20target%3D%22_blank%22%20rel%3D%22noopener%20noreferrer%20noopener%20noreferrer%22%3Ehttps%3A%2F%2Fsocial.msdn.microsoft.com%2FForums%2Fen-US%2F2245bbd4-e431-45db-a86d-af5417e61876%2Fspring-boot-v216-microsoft-planner-integration%3Fforum%3DApplicationInsights%3C%2FA%3E%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EI%20was%20directed%20to%20this%20for%20forum%20for%20MS%20Planner%20technical%20questions%20by%20the%20moderator%20(%3CA%20href%3D%22https%3A%2F%2Fsocial.msdn.microsoft.com%2Fprofile%2Fdave%2520patrick%2F%3Fws%3Dusercard-mini%22%20target%3D%22_blank%22%20rel%3D%22noopener%20noreferrer%20noopener%20noreferrer%22%3Ehttps%3A%2F%2Fsocial.msdn.microsoft.com%2Fprofile%2Fdave%2520patrick%2F%3Fws%3Dusercard-mini%3C%2FA%3E)%20from%20MDSN.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EWhat%20I%20am%20attempting%20to%20implement%20is%20a%20Spring%20Boot%20micro-service%20that%20wraps%20the%20API%20calls%20to%20Microsoft%20Planner.%20I%20have%20create%20an%20Azure%20app%20registration%20with%20permissions%20to%20Groups.Read.All%20and%20Users.Read.All%20(both%20are%20delegated%20permissions).%20I'm%20to%20the%20point%20where%20the%20service%20does%20return%20a%20payload%20with%20an%20access_token%2C%20but%20the%20token%20does%20not%20work%20when%20making%20API%20to%20the%20MS%20Graph%20Planner%20endpoints.%20Further%20details%20about%20the%20implementation%20can%20be%20found%20in%20the%20links%20above.%3C%2FP%3E%3C%2FLINGO-BODY%3E
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I have a stackoverflow and a MS Developer Network post at the below links:

 

https://stackoverflow.com/questions/57047044/spring-boot-v2-1-6-microsoft-planner-integration

https://social.msdn.microsoft.com/Forums/en-US/2245bbd4-e431-45db-a86d-af5417e61876/spring-boot-v216...

 

I was directed to this for forum for MS Planner technical questions by the moderator (https://social.msdn.microsoft.com/profile/dave%20patrick/?ws=usercard-mini) from MDSN.

 

What I am attempting to implement is a Spring Boot micro-service that wraps the API calls to Microsoft Planner. I have create an Azure app registration with permissions to Groups.Read.All and Users.Read.All (both are delegated permissions). I'm to the point where the service does return a payload with an access_token, but the token does not work when making API to the MS Graph Planner endpoints. Further details about the implementation can be found in the links above.