CORS 示例

服务端

server.go

package main

import
(
"net/http"
"github.com/labstack/echo"
"github.com/labstack/echo/middleware"
)

var
(
    users =[]string{"Joe","Veer","Zion"}
)

func getUsers(c echo.Context) error{
    return c.JSON(http.StatusOK, users)
}

func main(){
    e := echo.New()
    e.Use(middleware.Logger())
    e.Use(middleware.Recover())
    // CORS default
    // Allows requests from any origin wth GET, HEAD, PUT, POST or DELETE method.
    // e.Use(middleware.CORS())
    // CORS restricted
    // Allows requests from any `https://labstack.com` or `https://labstack.net` origin
    // wth GET, PUT, POST or DELETE method.
    e.Use(middleware.CORSWithConfig(middleware.CORSConfig{
        AllowOrigins:[]string{"https://labstack.com","https://labstack.net"},
        AllowMethods:[]string{echo.GET, echo.PUT, echo.POST, echo.DELETE},
        }))
    e.GET("/api/users", getUsers)
    e.Logger.Fatal(e.Start(":1323"))
}