Delete the TodoListServiceExtensions and TodoListService and instead use IDownstreamApi from Id Web 2.x. https://github.com/Azure-Samples/ms-identity-blazor-server/blob/main/WebApp-your-API/MyOrg/Client/Data/ToDoListService.cs and in [TodoPages](https://github.com/Azure-Samples/ms-identity-blazor-server/blob/main/WebApp-your-API/MyOrg/Client/Pages/ToDoPages/ToDoListBase.cs), do something similar to this [PR](https://github.com/Azure-Samples/active-directory-aspnetcore-webapp-openidconnect-v2/pull/667/files#diff-98a93738e85e69fc38cc21d182cb14f628e751da391ea431b437f9a445671ab4)