CODEWITHSUNDEEP
c#azuredependency-injectionmicroservicesazure-service-fabric
JohnTortugo
JohnTortugo

Reputation: 6625

Dependency Injection of Value Types

I am creating an Azure Service Fabric service and relying on the native .NET framework for dependency injection through constructors. The problem is: one of the constructors has as parameter a value type (specifically System.TimeSpan). How should/can I register such type with the dependency injection framework?

To clarify: I am trying to follow the examples shown here: https://learn.microsoft.com/en-us/aspnet/core/fundamentals/dependency-injection#service-lifetimes-and-registration-options

Upvotes: 4

Views: 1448

Answers (1)

LoekD
LoekD

Reputation: 11470

If possible, consider adding an interface like IDurationProvider, that has a property of type TimeSpan and register a type that implements it instead. This clarifies the developer & usage intent.

If you decide you really need this, this will work:

 services.AddTransient(typeof(TimeSpan), _=> TimeSpan.FromSeconds(1D));
 var serviceProvider = services.BuildServiceProvider();
 var timespan = (TimeSpan)serviceProvider.GetRequiredService(typeof(TimeSpan));

Upvotes: 5

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