C#: What is the difference between IServiceProvider and IScopeFactory?

IServiceProvider — resolve services. IServiceScopeFactory — create scopes.

IServiceProvider:

• Resolve singletons.
• No scope control.
• Limited.

IServiceScopeFactory:

• Create scopes.
• Scoped services.
• More control.

1// IServiceProvider
2var service = provider.GetService<IMyService>();
3
4// IServiceScopeFactory
5using var scope = scopeFactory.CreateScope();
6var service = scope.ServiceProvider.GetRequiredService<IMyService>();

Key: ScopeFactory for scoped services.