main.go

package main

import (
	"github.com/kataras/iris/v12"
	"github.com/kataras/iris/v12/hero"
)

func main() {
	app := iris.New()

	// 1
	helloHandler := hero.Handler(hello)
	app.Get("/{to:string}", helloHandler)

	// 2
	hero.Register(&myTestService{
		prefix: "Service: Hello",
	})

	helloServiceHandler := hero.Handler(helloService)
	app.Get("/service/{to:string}", helloServiceHandler)

	// 3
	hero.Register(func(ctx iris.Context) (form LoginForm) {
		// it binds the "form" with a
		// x-www-form-urlencoded form data and returns it.
		ctx.ReadForm(&form)
		return
	})

	loginHandler := hero.Handler(login)
	app.Post("/login", loginHandler)

	// http://localhost:8080/your_name
	// http://localhost:8080/service/your_name
	app.Run(iris.Addr(":8080"))
}

func hello(to string) string {
	return "Hello " + to
}

type Service interface {
	SayHello(to string) string
}

type myTestService struct {
	prefix string
}

func (s *myTestService) SayHello(to string) string {
	return s.prefix + " " + to
}

func helloService(to string, service Service) string {
	return service.SayHello(to)
}

type LoginForm struct {
	Username string `form:"username"`
	Password string `form:"password"`
}

func login(form LoginForm) string {
	return "Hello " + form.Username
}