go-labstack-echo-demo

routes.go

package main

import (
	"io"
	"net/http"
	"os"

	"github.com/labstack/echo"
)

type User struct {
	Name  string `json:"name" xml:"name" form:"name" query:"name"`
	Email string `json:"email" xml:"email" form:"email" query:"email"`
}

func index(c echo.Context) error {
	return c.String(http.StatusOK, "Hello, World!")
}

func save(c echo.Context) error {
	name := c.FormValue("name")
	email := c.FormValue("email")
	return c.String(http.StatusOK, "Name:"+name+", Email:"+email)
}

func search(c echo.Context) error {
	q := c.QueryParam("q")
	return c.String(http.StatusOK, "Searching: "+q)
}

func avatarSave(c echo.Context) error {
	name := c.FormValue("name")
	avatar, err := c.FormFile("avatar")
	if err != nil {
		return err
	}

	src, err := avatar.Open()
	if err != nil {
		return err
	}
	defer src.Close()

	dst, err := os.Create(avatar.Filename)
	if err != nil {
		return err
	}
	defer dst.Close()

	if _, err = io.Copy(dst, src); err != nil {
		return err
	}

	return c.HTML(http.StatusOK, "<b>Thank you! "+name+"</b>")
}

func user(c echo.Context) error {
	id := c.Param("id")
	return c.String(http.StatusOK, id)
}

func userSave(c echo.Context) error {
	u := new(User)
	if err := c.Bind(u); err != nil {
		return err
	}
	return c.JSON(http.StatusCreated, u)
}

func raisePanic(c echo.Context) error {
	panic("Self triggered panic")
	return c.String(http.StatusOK, "Panic!!!")
}

server.go

package main

import (
	"os"

	"github.com/labstack/echo"
	"github.com/labstack/echo/middleware"
)

func main() {
	e := echo.New()
	e.Use(middleware.Logger())
	e.Use(middleware.Recover())

	e.GET("/", index)
	e.POST("/", save)
	e.GET("/search", search)
	e.POST("/avatar", avatarSave)
	e.GET("/user/:id", user)
	e.POST("/user", userSave)
	e.GET("/panic", raisePanic)
	e.Static("/static", "static")

	g := e.Group("/admin")
	g.Use(middleware.BasicAuth(func(username, password string, c echo.Context) (bool, error) {
		if username == "admin" && password == "admin" {
			return true, nil
		}
		return false, nil
	}))

	e.Logger.Fatal(e.Start(":" + os.Args[1]))
}