feat(client): add debug log helper

Author: stainless-app[bot]

option/middleware.go

@@ -0,0 +1,38 @@
+// File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
+
+package option
+
+import (
+	"log"
+	"net/http"
+	"net/http/httputil"
+)
+
+// WithDebugLog logs the HTTP request and response content.
+// If the logger parameter is nil, it uses the default logger.
+//
+// WithDebugLog is for debugging and development purposes only.
+// It should not be used in production code. The behavior and interface
+// of WithDebugLog is not guaranteed to be stable.
+func WithDebugLog(logger *log.Logger) RequestOption {
+	return WithMiddleware(func(req *http.Request, nxt MiddlewareNext) (*http.Response, error) {
+		if logger == nil {
+			logger = log.Default()
+		}
+
+		if reqBytes, err := httputil.DumpRequest(req, true); err == nil {
+			logger.Printf("Request Content:\n%s\n", reqBytes)
+		}
+
+		resp, err := nxt(req)
+		if err != nil {
+			return resp, err
+		}
+
+		if respBytes, err := httputil.DumpResponse(resp, true); err == nil {
+			logger.Printf("Response Content:\n%s\n", respBytes)
+		}
+
+		return resp, err
+	})
+}