Changeset 0.33.0 (#207)

Co-authored-by: Jeffrey Smith <jasafpro@gmail.com>
Co-committed-by: Jeffrey Smith <jasafpro@gmail.com>

server/middleware/request_id.go

@@ -0,0 +1,28 @@
+package middleware
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+)
+
+const (
+	// RequestIDKey is the Gin context key for the request ID.
+	RequestIDKey = "request_id"
+	// RequestIDHeader is the HTTP header used to propagate request IDs.
+	RequestIDHeader = "X-Request-Id"
+)
+
+// RequestID generates a UUID per request and sets it in the Gin context
+// and response header. If the incoming request already carries an
+// X-Request-Id header, it is preserved (useful for tracing across proxies).
+func RequestID() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		id := c.GetHeader(RequestIDHeader)
+		if id == "" {
+			id = uuid.New().String()
+		}
+		c.Set(RequestIDKey, id)
+		c.Header(RequestIDHeader, id)
+		c.Next()
+	}
+}