Recompute base URL api-suffix per URL build call

Co-authored-by: Shri Sukhani <shrisukhani@users.noreply.github.com>

Author: cursoragent

hyperbrowser/client/base.py

@@ -64,10 +64,6 @@ def __init__(
             raise HyperbrowserError("API key must be provided")
 
         self.config = config
-        parsed_base_url = urlparse(self.config.base_url)
-        self._base_url_has_api_suffix = parsed_base_url.path.rstrip("/").endswith(
-            "/api"
-        )
         self.transport = transport(config.api_key, headers=config.headers)
 
     def _build_url(self, path: str) -> str:
@@ -82,13 +78,16 @@ def _build_url(self, path: str) -> str:
         if parsed_path.scheme:
             raise HyperbrowserError("path must be a relative API path")
         normalized_path = f"/{stripped_path.lstrip('/')}"
+        base_has_api_suffix = (
+            urlparse(self.config.base_url).path.rstrip("/").endswith("/api")
+        )
 
         if normalized_path == "/api" or normalized_path.startswith("/api/"):
-            if self._base_url_has_api_suffix:
+            if base_has_api_suffix:
                 deduped_path = normalized_path[len("/api") :]
                 return f"{self.config.base_url}{deduped_path}"
             return f"{self.config.base_url}{normalized_path}"
 
-        if self._base_url_has_api_suffix:
+        if base_has_api_suffix:
             return f"{self.config.base_url}{normalized_path}"
         return f"{self.config.base_url}/api{normalized_path}"

tests/test_url_building.py

@@ -71,6 +71,15 @@ def test_client_build_url_handles_nested_api_base_paths():
         client.close()
 
 
+def test_client_build_url_reflects_runtime_base_url_changes():
+    client = Hyperbrowser(config=ClientConfig(api_key="test-key"))
+    try:
+        client.config.base_url = "https://example.local/api"
+        assert client._build_url("/session") == "https://example.local/api/session"
+    finally:
+        client.close()
+
+
 def test_client_build_url_rejects_empty_or_non_string_paths():
     client = Hyperbrowser(config=ClientConfig(api_key="test-key"))
     try: