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/*
* @Descripttion:
* @version:
* @Author: lfzxs@qq.com
* @Date: 2023-11-08 14:40:59
* @LastEditors: lfzxs@qq.com
* @LastEditTime: 2023-11-09 14:54:50
*/
package middleware
import (
"net/http"
"github.com/gogf/gf/v2/errors/gcode"
"github.com/gogf/gf/v2/errors/gerror"
"github.com/gogf/gf/v2/net/ghttp"
)
// DefaultHandlerResponse is the default implementation of HandlerResponse.
type DefaultHandlerResponse struct {
Code int `json:"code" dc:"Error code"`
Message string `json:"message" dc:"Error message"`
Data interface{} `json:"data" dc:"Result data for certain request according API definition"`
TraceID string `json:"traceId" dc:"链路id"`
}
// MiddlewareHandlerResponse is the default middleware handling handler response object and its error.
func MiddlewareHandlerResponse(r *ghttp.Request) {
r.Middleware.Next()
// There's custom buffer content, it then exits current handler.
if r.Response.BufferLength() > 0 {
return
}
var (
msg string
err = r.GetError()
res = r.GetHandlerResponse()
code = gerror.Code(err)
)
if err != nil {
if code == gcode.CodeNil {
code = gcode.CodeInternalError
}
msg = err.Error()
} else {
if r.Response.Status > 0 && r.Response.Status != http.StatusOK {
msg = http.StatusText(r.Response.Status)
switch r.Response.Status {
case http.StatusNotFound:
code = gcode.CodeNotFound
case http.StatusForbidden:
code = gcode.CodeNotAuthorized
default:
code = gcode.CodeUnknown
}
// It creates error as it can be retrieved by other middlewares.
err = gerror.NewCode(code, msg)
r.SetError(err)
} else {
code = gcode.CodeOK
}
}
r.Response.WriteJson(DefaultHandlerResponse{
Code: code.Code(),
Message: msg,
Data: res,
})
}
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