Handling OPTIONS methods in goweb

main.go

package main

import (
    "code.google.com/p/goweb/goweb"
    "net/http"
)

type MyController struct{}

// for GET /api
func (c *MyController) Read(id string, cx *goweb.Context) {
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Origin", "*")
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Headers","*");
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Methods", "GET")
    cx.RespondWithOK()
}

// for GET /api/{id}
func (c *MyController) ReadMany(cx *goweb.Context) {
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Origin", "*")
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Headers","*");
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Methods", "GET")
    cx.RespondWithOK()
}

// for POST /api
func (c *MyController) Create(cx *goweb.Context) {
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Origin", "*")
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Headers","*");
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Methods", "POST")
    cx.RespondWithOK()
}

// for PUT /api/{id}
func (c *MyController) Update(id string, cx *goweb.Context) {
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Origin", "*")
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Headers","*");
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Methods", "PUT")
    cx.RespondWithOK()
}

// for PUT /api
func (c *MyController) UpdateMany(cx *goweb.Context) {
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Origin", "*")
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Headers","*");
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Methods", "PUT")
    cx.RespondWithOK()
}

// for DELETE /api/{id}
func (c *MyController) Delete(id string, cx *goweb.Context) {
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Origin", "*")
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Headers","*");
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Methods", "DELETE")
    cx.RespondWithOK()
}

// for DELETE /api
func (c *MyController) DeleteMany(cx *goweb.Context) {
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Origin", "*")
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Headers","*");
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Methods", "DELTE")
    cx.RespondWithOK()
}

// for OPTIONS /api
func (c *MyController) Options(cx *goweb.Context) {
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Origin", "*")
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Headers","*");
    cx.ResponseWriter.Header().Set("Access-Control-Allow-Methods", "GET,POST,PUT,DELTE,OPTIONS")
    cx.RespondWithOK()
}

const OPTIONS_HTTP_METHOD string = "OPTIONS"
func OptionsMethod(cx *goweb.Context) goweb.RouteMatcherFuncValue {
        if cx.Request.Method == OPTIONS_HTTP_METHOD {
                return goweb.Match
        }
        return goweb.DontCare
}

func main() {
    controller := new(MyController)
    goweb.MapRest("/api", controller)
    goweb.MapFunc("/api", controller.Options, OptionsMethod)
    goweb.ConfigureDefaultFormatters()
    http.Handle("/", goweb.DefaultHttpHandler)
}