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response.go
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response.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package fastutil
import (
"encoding/json"
"html/template"
"github.com/vogo/logger"
"github.com/vogo/webu/cerror"
"github.com/valyala/fasthttp"
)
type response struct {
Code int `json:"code"`
Msg string `json:"msg,omitempty"`
Data interface{} `json:"data,omitempty"`
}
func ResponseData(ctx *fasthttp.RequestCtx, code int, data interface{}) {
printResp(ctx, code, "", data)
}
func ResponseOK(ctx *fasthttp.RequestCtx) {
printResp(ctx, cerror.CodeOK, "", "ok")
}
func ResponseSuccess(ctx *fasthttp.RequestCtx, data interface{}) {
printResp(ctx, cerror.CodeOK, "", data)
}
func ResponseCodeError(ctx *fasthttp.RequestCtx, code int, err error) {
ResponseCodeMsg(ctx, code, err.Error())
}
func ErrorResponse(ctx *fasthttp.RequestCtx, err error) {
if c, ok := err.(cerror.StatusState); ok {
ctx.SetStatusCode(c.Status())
}
code := cerror.CodeUnknownErr
if c, ok := err.(cerror.Coder); ok {
code = c.Code()
}
ResponseCodeMsg(ctx, code, err.Error())
}
func ResponseBadMsg(ctx *fasthttp.RequestCtx, msg string) {
ResponseCodeMsg(ctx, cerror.CodeRequestErr, msg)
}
func ResponseBadError(ctx *fasthttp.RequestCtx, err error) {
logger.Errorf("bad request: %v", err)
ResponseBadMsg(ctx, err.Error())
}
func ResponseCodeMsg(ctx *fasthttp.RequestCtx, code int, msg string) {
printResp(ctx, code, msg, nil)
}
func printResp(ctx *fasthttp.RequestCtx, code int, msg string, data interface{}) {
resp := response{
Code: code,
Msg: msg,
Data: data,
}
jsonBytes, err := json.Marshal(resp)
if err != nil {
logger.Infof("json marshal error: %+v", err)
_, _ = ctx.Write([]byte("internal server error"))
return
}
ctx.SetContentType("application/json")
_, _ = ctx.Write(jsonBytes)
}
func ResponseTemplate(ctx *fasthttp.RequestCtx, tpl *template.Template, data interface{}) {
ctx.SetContentType("text/html")
err := tpl.Execute(ctx.Response.BodyWriter(), data)
if err != nil {
logger.Fatalf("template format error: %v", err)
}
}