fix: prevent duplicate ? in query params

stainless-app[bot] · stainless-app[bot] · commit f7cfb89b74ab · 2026-03-27T05:41:51.000Z
diff --git a/internal/requestconfig/requestconfig.go b/internal/requestconfig/requestconfig.go
@@ -121,7 +121,16 @@ 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 {

Original file line number	Diff line number	Diff line change
`@@ -121,7 +121,16 @@ func NewRequestConfig(ctx context.Context, method string, u string, body any, ds`
`121`	`121`	`}`
`122`	`122`	`params := q.Encode()`
`123`	`123`	`if params != "" {`
`124`		`- u = u + "?" + params`
	`124`	`+ parsed, err := url.Parse(u)`
	`125`	`+ if err != nil {`
	`126`	`+ return nil, err`
	`127`	`+ }`
	`128`	`+ if parsed.RawQuery != "" {`
	`129`	`+ parsed.RawQuery = parsed.RawQuery + "&" + params`
	`130`	`+ u = parsed.String()`
	`131`	`+ } else {`
	`132`	`+ u = u + "?" + params`
	`133`	`+ }`
`125`	`134`	`}`
`126`	`135`	`}`
`127`	`136`	`if body, ok := body.([]byte); ok {`