Merge branch 'modalRefactor' into python_custom_node_component

src/backend/langflow/api/v1/chat.py

@@ -134,6 +134,7 @@ async def stream_build(flow_id: str):
                         # to set the input_keys values
                         artifacts.update(vertex.artifacts)
                 except Exception as exc:
+                    logger.exception(exc)
                     params = str(exc)
                     valid = False
                     flow_data_store[flow_id]["status"] = BuildStatus.FAILURE

src/backend/langflow/graph/vertex/base.py

@@ -176,6 +176,8 @@ class Vertex:
         for node in nodes:
             built = node.build()
             if isinstance(built, list):
+                if key not in self.params:
+                    self.params[key] = []
                 self.params[key].extend(built)
             else:
                 self.params[key].append(built)

src/backend/langflow/main.py

@@ -64,15 +64,20 @@ def setup_static_files(app: FastAPI, static_files_dir: Path):
         return FileResponse(path)
 
 
-# app = create_app()
-# setup_static_files(app, static_files_dir)
+def get_static_files_dir():
+    """Get the static files directory relative to Langflow's main.py file."""
+    frontend_path = Path(__file__).parent
+    return frontend_path / "frontend"
+
+
 def setup_app(static_files_dir: Optional[Path] = None) -> FastAPI:
     """Setup the FastAPI app."""
     # get the directory of the current file
     if not static_files_dir:
-        frontend_path = Path(__file__).parent
-        static_files_dir = frontend_path / "frontend"
+        static_files_dir = get_static_files_dir()
 
+    if not static_files_dir or not static_files_dir.exists():
+        raise RuntimeError(f"Static files directory {static_files_dir} does not exist.")
     app = create_app()
     setup_static_files(app, static_files_dir)
     return app

src/backend/langflow/template/frontend_node/textsplitters.py

@@ -15,6 +15,7 @@ class TextSplittersFrontendNode(FrontendNode):
                 required=True,
                 show=True,
                 name="documents",
+                is_list=True,
             )
         )
         name = "separator"

src/backend/langflow/template/frontend_node/vectorstores.py

@@ -259,7 +259,7 @@ class VectorStoreFrontendNode(FrontendNode):
             field.required = False
             field.show = True
             field.advanced = False
-
+            field.is_list = True
         elif "embedding" in field.name:
             # for backwards compatibility
             field.name = "embedding"