CORS 示例

服务端

server.go

  1. package main
  3. import (
  4.     "net/http"
  6.     "github.com/labstack/echo"
  7.     "github.com/labstack/echo/middleware"
  8. )
  10. var (
  11.     users = []string{"Joe", "Veer", "Zion"}
  12. )
  14. func getUsers(c echo.Context) error {
  15.     return c.JSON(http.StatusOK, users)
  16. }
  18. func main() {
  19.     e := echo.New()
  20.     e.Use(middleware.Logger())
  21.     e.Use(middleware.Recover())
  23.     // CORS default
  24.     // Allows requests from any origin wth GET, HEAD, PUT, POST or DELETE method.
  25.     // e.Use(middleware.CORS())
  27.     // CORS restricted
  28.     // Allows requests from any `https://labstack.com` or `https://labstack.net` origin
  29.     // wth GET, PUT, POST or DELETE method.
  30.     e.Use(middleware.CORSWithConfig(middleware.CORSConfig{
  31.         AllowOrigins: []string{"https://labstack.com", "https://labstack.net"},
  32.         AllowMethods: []string{echo.GET, echo.PUT, echo.POST, echo.DELETE},
  33.     }))
  35.     e.GET("/api/users", getUsers)
  37.     e.Logger.Fatal(e.Start(":1323"))
  38. }