muxtool/middleware/request_id.go

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2024-06-11 14:12:30 +03:00
package middleware
import (
"context"
"net/http"
"go.neonxp.ru/objectid"
)
type ctxKeyRequestID int
const (
RequestIDKey ctxKeyRequestID = 0
RequestIDHeader string = "X-Request-ID"
)
func RequestID(next http.Handler) http.Handler {
objectid.Seed()
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
requestID := r.Header.Get(RequestIDHeader)
if requestID == "" {
requestID = objectid.New().String()
}
next.ServeHTTP(w, r.WithContext(context.WithValue(r.Context(), RequestIDKey, requestID)))
})
}
func GetRequestID(r *http.Request) string {
rid := r.Context().Value(RequestIDKey)
if rid == nil {
return ""
}
srid, ok := rid.(string)
if !ok {
return ""
}
return srid
}