From cbb2c754223558d6fd19f34642a0aa89adba42e7 Mon Sep 17 00:00:00 2001
From: "stainless-app[bot]"
 <142633134+stainless-app[bot]@users.noreply.github.com>
Date: Thu, 26 Mar 2026 17:44:20 +0000
Subject: [PATCH] fix: prevent duplicate ? in query params

---
 internal/requestconfig/requestconfig.go | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/internal/requestconfig/requestconfig.go b/internal/requestconfig/requestconfig.go
index be1e8b6..0ea3114 100644
--- a/internal/requestconfig/requestconfig.go
+++ b/internal/requestconfig/requestconfig.go
@@ -122,7 +122,16 @@ func NewRequestConfig(ctx context.Context, method string, u string, body any, ds
 		}
 		params := q.Encode()
 		if params != "" {
-			u = u + "?" + params
+			parsed, err := url.Parse(u)
+			if err != nil {
+				return nil, err
+			}
+			if parsed.RawQuery != "" {
+				parsed.RawQuery = parsed.RawQuery + "&" + params
+				u = parsed.String()
+			} else {
+				u = u + "?" + params
+			}
 		}
 	}
 	if body, ok := body.([]byte); ok {