github.com/erda-project/erda-infra@v1.0.9/providers/httpserver/interceptors/requestid.go (about)

     1  // Copyright (c) 2021 Terminus, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package interceptors
    16  
    17  import (
    18  	"github.com/google/uuid"
    19  	"github.com/labstack/echo"
    20  )
    21  
    22  // InjectRequestID inject request id for http request.
    23  func InjectRequestID() echo.MiddlewareFunc {
    24  	return func(next echo.HandlerFunc) echo.HandlerFunc {
    25  		return func(c echo.Context) error {
    26  			req := c.Request()
    27  			res := c.Response()
    28  			rid := req.Header.Get(echo.HeaderXRequestID)
    29  			if rid == "" {
    30  				rid = uuid.NewString()
    31  				// set rid to request headers for proxy use, otherwise the forwarded target httpserver will inject a new X-Request-ID
    32  				req.Header.Set(echo.HeaderXRequestID, rid)
    33  			}
    34  			res.Header().Set(echo.HeaderXRequestID, rid)
    35  
    36  			return next(c)
    37  		}
    38  	}
    39  }
    40  
    41  // GetRequestID get request id from context.
    42  func GetRequestID(c echo.Context) string {
    43  	return c.Response().Header().Get(echo.HeaderXRequestID)
    44  }