Merge pull request #1 from browserbase/create-session-ensure-project-id

fix(create_session): ensure a `project_id` is set

Author: charlypoly

browserbase/__init__.py

@@ -140,6 +140,9 @@ def create_session(self, options: Optional[CreateSessionOptions] = None) -> Sess
         if options:
             payload.update(options.model_dump(by_alias=True, exclude_none=True))
 
+        if not options['projectId']:
+            raise ValueError("a projectId is missing: use the options.projectId or BROWSERBASE_PROJECT_ID environment variable to set one.")
+
         response = httpx.post(
             f"{self.api_url}/v1/sessions",
             headers={