Instantiate a Service in ConfigureServices Method in .NET Core

visibility 3,143 access_time 2y languageEnglish

.NET Core is built in with dependency injection. Usually method ConfigureServices in Startup class is used to register services in the container.

The signature of the method looks like the following:

public void ConfigureServices(IServiceCollection services)
{

}

Sometimes it may be necessary to instantiate a service in this function. To do that, you can use the following method:

var sp = services.BuildServiceProvider();
var dbConfig = sp.GetService<IOptions<DatabaseConfig>>().Value;

In the above example, the BuildServiceProvider function is invoked to create a service provider object which then is used to get service.

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