Where to store connection string ID & PW when deploying web app to Azure

My MVC Core web app works with database.

Is it a good practice to store the connection strings with ID & Password in appsetting.json when I deploy it to Azure?

Server=tcp:______.database.windows.net,1433;Initial Catalog=______;Persist Security Info=False;User ID=______;Password=________;MultipleActiveResultSets=False;Encrypt=True;TrustServerCertificate=False;Connection Timeout=30;

Is there any better practice to save the ID & password somewhere?