.NET Cookbook

Core like Startup

This recipe explains, on using .NET standard extension methods in full framework app similar to one in .NET Core application. This also helps in leveraging a number of Steeltoe extension methods.

Steps to follow

1. Add a class in the root of the application or under App_Start, called BootConfig.cs

2. Add the below nuget packages (preferably latest versions)

   • Microsoft.Extensions.Configuration
   • Microsoft.Extensions.DependencyInjection
   • Microsoft.Extensions.Hosting

3. Add the below code into the class

       public class BootConfig
       {
           static IHost host;
           public static void Configure(string environment)
           {
               host = new HostBuilder()
                   .ConfigureAppConfiguration((builderContext, configBuilder) =>
                   {
                       //Add your IConfiguration builder extensions methods here
                   })
                   .ConfigureServices((builderContext, services) =>
                   {
                       //Add your IServiceCollection builder extensions methods here
                   })
                   .ConfigureLogging((context, loggerFactory) =>
                   {
                       //Add your ILoggerFactory extensions methods here
                   })
                   .Build();
           }
   
           public static T GetService<T>()
           {
               return host?.Services?.GetService<T>();
           }
       }
   

4. In Application_Start method of Global.asax.cs class, call the Configure method, which will create DI container, inject configurations and even configure logging as provided

       public void Application_Start(object sender, EventArgs e)
       {
           ...
   
           BootConfig.Configure("development"); //pass in the enviroment variable here (hardcoded for sample purposes only)
       }
   

5. You can also access the registered services using BootConfig.GetService<T>() method, anywhere from the applications.

Note: In case the application uses any DI framework, you can populate these services into their containers, where you may no need the BootConfig.GetService<T>() method.

Hope you have fun!