You can register your own services by creating an instance of ServiceCollection and adding the services to the collection. _console.WriteLine("Hello dependency injection!") Public MyServiceImplementation(IConsole console) class MyServiceImplementation : IMyService Also, note that an instance of IConsole is injected into the MyServiceImplementation constructor. The implementation of this service is done in MyServiceImplementation, which will write a string to the console. In the example below, we have defined a service named IMyService with a single method named Invoke: interface IMyService You can register your own services by using the ConstructorInjectionConvention and making use of the NuGet package to contruct services. When using sub-commands, you can inject the type of the parent command into the constructor for a sub-command. Injects the CommandLineContext which contains information abount the execution context of the command. Injects the definitions for the arguments passed to the command. Injects the definitions for the options passed to the command. Injects the CommandLineApplication instance. There are the standard services which you can inject: Service _console.WriteLine("Hello from your first application") ĬommandLineApplication makes a number of services available by default for injecting into your command constructors. Static Task Main(string args) => CommandLineApplication.ExecuteAsync(args) Later in the program, this is used to write output to the console: In the example below, the IConsole implementation is injected into the constructor and stored in a field named _console. To inject services into a command constructor, you need to specify the services to be injected as parameters for the public constructor of the command. CommandLineUtils has a standard set of services which are available to inject and also allow you to register and inject your own services. This gives you the ability to avoid tight coupling between the commands and the services which they depend on. CommandLineUtils allow you to use dependency injection to inject dependencies into command constructors at runtime.
0 Comments
Leave a Reply. |