47 lines
843 B
Go
47 lines
843 B
Go
package middleware
|
|
|
|
import (
|
|
"crypto/rand"
|
|
"encoding/hex"
|
|
"time"
|
|
|
|
"github.com/gin-gonic/gin"
|
|
)
|
|
|
|
const (
|
|
HeaderRequestID = "X-Request-ID"
|
|
ContextRequestID = "requestID"
|
|
)
|
|
|
|
func RequestID() gin.HandlerFunc {
|
|
return func(c *gin.Context) {
|
|
requestID := c.GetHeader(HeaderRequestID)
|
|
if requestID == "" {
|
|
requestID = newRequestID()
|
|
}
|
|
c.Set(ContextRequestID, requestID)
|
|
c.Header(HeaderRequestID, requestID)
|
|
c.Next()
|
|
}
|
|
}
|
|
|
|
func CurrentRequestID(c *gin.Context) string {
|
|
value, ok := c.Get(ContextRequestID)
|
|
if !ok {
|
|
return ""
|
|
}
|
|
requestID, ok := value.(string)
|
|
if !ok {
|
|
return ""
|
|
}
|
|
return requestID
|
|
}
|
|
|
|
func newRequestID() string {
|
|
var raw [16]byte
|
|
if _, err := rand.Read(raw[:]); err == nil {
|
|
return hex.EncodeToString(raw[:])
|
|
}
|
|
return hex.EncodeToString([]byte(time.Now().Format("20060102150405.000000000")))
|
|
}
|