AuthenticationResult does not contain refresh token

c# - Get refresh token additionally to access token with Microsoft.Identity.Client - Stack Overflow

MSAL.NET does not expose refresh tokens, for security reasons: MSAL handles refreshing tokens for you with token cache.

MSAL maintains a token cache and caches a token after it has been acquired. It's also capable of refreshing a token when it's getting close to expiration (as the token cache also contains a refresh token).

You can improve the availability of your application by regularly using WithForceRefresh which will internally acquire new access token when set to true

result = await app.AcquireTokenSilent(scopes, accounts.FirstOrDefault())
             .WithForceRefresh(true)
             .ExecuteAsync();

Add access to refresh_token in Microsoft.Identity.Client.AuthenticationResult · Issue #1234 · AzureAD/microsoft-authentication-library-for-dotnet · GitHub

Does this documentation answer your question @mantasaudickas : https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/wiki/High-availability#pro-active-token-renewal ?