[c#] AddTransient, AddScoped and AddSingleton Services Differences

  • Singleton is a single instance for the lifetime of the application domain.
  • Scoped is a single instance for the duration of the scoped request, which means per HTTP request in ASP.NET.
  • Transient is a single instance per code request.

Normally the code request should be made through a constructor parameter, as in

public MyConsumingClass(IDependency dependency)

I wanted to point out in @akazemis's answer that "services" in the context of DI does not imply RESTful services; services are implementations of dependencies that provide functionality.

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