Will MSAL be able to maintain a token cache and refreshes tokens for you when they are close to expire in case of Custom REST API secured by Azure AD
Based on the documentation details for MSAL (Azure AD) mentioned at : https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/wiki/MSAL.NET-supports-multiple-application-architectures-and-multiple-platforms#msalnet-is-about-acquiring-tokens-not-protecting-an-api