Completing a basic IGreeter service and configuring ASP.NET Core to i…

…nstantiate a Greeter class any time an IGreeter is injected

OdeToFoodRider/OdeToFoodRider/IGreeter.cs

@@ -9,7 +9,7 @@ class Greeter : IGreeter
     {
         public string GetMessageOfTheDay()
         {
-            throw new System.NotImplementedException();
+            return "Greetings from Rider!";
 
         }
     }

OdeToFoodRider/OdeToFoodRider/Startup.cs

@@ -16,6 +16,8 @@ public class Startup
         // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
         public void ConfigureServices(IServiceCollection services)
         {
+            services.AddSingleton<IGreeter, Greeter>();
+
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.

OdeToFoodVisualStudio/OdeToFoodVisualStudio/IGreeter.cs

@@ -12,7 +12,7 @@ class Greeter : IGreeter
     {
         public string GetMessageOfTheDay()
         {
-            throw new System.NotImplementedException();
+            return "Greetings from Visual Studio!";
         }
     }
 }

OdeToFoodVisualStudio/OdeToFoodVisualStudio/Startup.cs

@@ -12,6 +12,9 @@ public class Startup
         // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
         public void ConfigureServices(IServiceCollection services)
         {
+            // RDVS: Rider's completion works better with this generic method as it additionally adds the parentheses; additionally, VS overlaps the completion list inside the generic brackets
+            // with with parameter info
+            services.AddSingleton<IGreeter, Greeter>();
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
@@ -26,8 +29,8 @@ public void Configure(IApplicationBuilder app, IHostingEnvironment env, IGreeter
             {
                 // Configuration sources by descending priority: 1. command-line parameter, 2. environment variable, 3. appsettings.json (enables storing dev settings in appsettings.json and overriding them in production wtih environment variables for example)
 
-                // VsvsRider: doesn look like there's an action to add a new comment (there are actions to comment/decomment existing code; and to add documentation comment)
-                // VsvsRider: VS create from usage isn't quite on par right now: given the undeclared IGreeter interface in method parameteres and the below line that uses an undeclared method,
+                // RDVS: doesn look like there's an action to add a new comment (there are actions to comment/decomment existing code; and to add documentation comment)
+                // RDVS: VS create from usage isn't quite on par right now: given the undeclared IGreeter interface in method parameteres and the below line that uses an undeclared method,
                 // <strike>1. You must create the interface from usage first, and only then can you create the method - so there's no chaining in Create from Usage;</strike> - same in Rider :(
                 // 2. The created symbol doesn't get focus: both when it's created in a separate file and when it's created in the same file
                 // 3. Roslyn doesn't infer that the generated method should return a string, not an object