add a new 'overview' MVC example

Former-commit-id: f73cbf6010595c639f6c5b5119e2ec41bc9802a5

_examples/mvc/repository/main.go

@@ -0,0 +1,53 @@
+// file: main.go
+
+package main
+
+import (
+	"github.com/kataras/iris/v12/_examples/mvc/repository/datasource"
+	"github.com/kataras/iris/v12/_examples/mvc/repository/repositories"
+	"github.com/kataras/iris/v12/_examples/mvc/repository/services"
+	"github.com/kataras/iris/v12/_examples/mvc/repository/web/controllers"
+	"github.com/kataras/iris/v12/_examples/mvc/repository/web/middleware"
+
+	"github.com/kataras/iris/v12"
+	"github.com/kataras/iris/v12/mvc"
+)
+
+func main() {
+	app := iris.New()
+	app.Logger().SetLevel("debug")
+
+	// Load the template files.
+	app.RegisterView(iris.HTML("./web/views", ".html"))
+
+	// Serve our controllers.
+	mvc.New(app.Party("/hello")).Handle(new(controllers.HelloController))
+	// You can also split the code you write to configure an mvc.Application
+	// using the `mvc.Configure` method, as shown below.
+	mvc.Configure(app.Party("/movies"), movies)
+
+	// http://localhost:8080/hello
+	// http://localhost:8080/hello/iris
+	// http://localhost:8080/movies
+	// http://localhost:8080/movies/1
+	app.Listen(":8080", iris.WithOptimizations)
+}
+
+// note the mvc.Application, it's not iris.Application.
+func movies(app *mvc.Application) {
+	// Add the basic authentication(admin:password) middleware
+	// for the /movies based requests.
+	app.Router.Use(middleware.BasicAuth)
+
+	// Create our movie repository with some (memory) data from the datasource.
+	repo := repositories.NewMovieRepository(datasource.Movies)
+	// Create our movie service, we will bind it to the movie app's dependencies.
+	movieService := services.NewMovieService(repo)
+	app.Register(movieService)
+
+	// serve our movies controller.
+	// Note that you can serve more than one controller
+	// you can also create child mvc apps using the `movies.Party(relativePath)` or `movies.Clone(app.Party(...))`
+	// if you want.
+	app.Handle(new(controllers.MovieController))
+}