46 lines
775 B
Go
46 lines
775 B
Go
package middleware
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import (
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"crypto/rand"
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"encoding/hex"
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"github.com/gin-gonic/gin"
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)
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const (
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RequestIDHeader = "X-Request-ID"
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ContextRequestID = "request_id"
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)
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func RequestID() gin.HandlerFunc {
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return func(c *gin.Context) {
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requestID := c.GetHeader(RequestIDHeader)
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if requestID == "" {
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requestID = newRequestID()
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}
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c.Set(ContextRequestID, requestID)
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c.Writer.Header().Set(RequestIDHeader, requestID)
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c.Next()
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}
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}
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func GetRequestID(c *gin.Context) string {
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value, ok := c.Get(ContextRequestID)
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if !ok {
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return ""
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}
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requestID, ok := value.(string)
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if !ok {
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return ""
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}
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return requestID
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}
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func newRequestID() string {
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buf := make([]byte, 16)
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if _, err := rand.Read(buf); err != nil {
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return ""
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}
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return hex.EncodeToString(buf)
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}
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