iris/_examples/mvc/versioned-controller/main.go

package main

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

func main() {
	app := newApp()

	// See main_test.go for request examples.
	app.Listen(":8080")
}

func newApp() *iris.Application {
	app := iris.New()

	dataRouter := app.Party("/data")
	{
		m := mvc.New(dataRouter)
		m.Handle(new(v1Controller), mvc.Version("1"))       // 1 or 1.0, 1.0.0 ...
		m.Handle(new(v2Controller), mvc.Version("2.3"))     // 2.3 or 2.3.0
		m.Handle(new(v3Controller), mvc.Version(">=3, <4")) // 3, 3.x, 3.x.x ...
		m.Handle(new(noVersionController))
	}

	return app
}

type v1Controller struct{}

func (c *v1Controller) Get() string {
	return "data (v1.x)"
}

type v2Controller struct{}

func (c *v2Controller) Get() string {
	return "data (v2.x)"
}

type v3Controller struct{}

func (c *v3Controller) Get() string {
	return "data (v3.x)"
}

type noVersionController struct{}

func (c *noVersionController) Get() string {
	return "data"
}