Go http error handle

error.go

package controllers

import (
	"fmt"
	"net/http"

	r "github.com/unrolled/render"
)

type ErrorResponse struct {
	Code string `json:"code"`
}

func NewErrorResponse(code string) ErrorResponse {
	return ErrorResponse{
		Code: code,
	}
}

var render *r.Render = r.New()

func RenderError(w http.ResponseWriter, status int, v interface{}, err error) {
	logger.Error(fmt.Errorf("responsed error: %+v", err))
	render.JSON(w, status, v)
}

func BadParameterError(w http.ResponseWriter, err error) {
	body := NewErrorResponse("BadParameter")
	RenderError(w, http.StatusBadRequest, body, err)
}

func UnexpectedError(w http.ResponseWriter, err error) {
	body := NewErrorResponse("UnexpectedError")
	RenderError(w, http.StatusBadRequest, body, err)

}

func NotfoundError(w http.ResponseWriter, err error) {
	body := NewErrorResponse("Notfound")
	RenderError(w, http.StatusNotFound, body, err)

}

func UnauthorizedError(w http.ResponseWriter, err error) {
	body := NewErrorResponse("Unauthorized")
	RenderError(w, http.StatusUnauthorized, body, err)

}

func ForbiddenError(w http.ResponseWriter, err error) {
	body := NewErrorResponse("Forbidden")
	RenderError(w, http.StatusForbidden, body, err)
}