Revert "Revert "Fixes flows without input_keys not being runnable" (#731)"

This reverts commit 352e74cbc7, reversing
changes made to 3f531a1157.

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

@@ -155,7 +155,7 @@ async def stream_build(flow_id: str):
                 )
             else:
                 input_keys_response = {
-                    "input_keys": {},
+                    "input_keys": None,
                     "memory_keys": [],
                     "handle_keys": [],
                 }

src/backend/langflow/chat/manager.py

@@ -117,7 +117,7 @@ class ChatManager:
         self, client_id: str, payload: Dict, langchain_object: Any
     ):
         # Process the graph data and chat message
-        chat_inputs = payload.pop("inputs", "")
+        chat_inputs = payload.pop("inputs", {})
         chat_inputs = ChatMessage(message=chat_inputs)
         self.chat_history.add_message(client_id, chat_inputs)
 

src/backend/langflow/chat/utils.py

@@ -21,9 +21,9 @@ async def process_graph(
 
     # Generate result and thought
     try:
-        if not chat_inputs.message:
+        if chat_inputs.message is None:
             logger.debug("No message provided")
-            raise ValueError("No message provided")
+            chat_inputs.message = {}
 
         logger.debug("Generating result and thought")
         result, intermediate_steps = await get_result_and_steps(

src/backend/langflow/interface/initialize/vector_store.py

@@ -171,11 +171,7 @@ def initialize_pinecone(class_object: Type[Pinecone], params: dict):
 def initialize_chroma(class_object: Type[Chroma], params: dict):
     """Initialize a ChromaDB object from the params"""
     if (  # type: ignore
-        "chroma_server_host" in params
-        or "chroma_server_http_port" in params
-        or "chroma_server_ssl_enabled" in params
-        or "chroma_server_grpc_port" in params
-        or "chroma_server_cors_allow_origins" in params
+        "chroma_server_host" in params or "chroma_server_http_port" in params
     ):
         import chromadb  # type: ignore
 
@@ -186,6 +182,14 @@ def initialize_chroma(class_object: Type[Chroma], params: dict):
         }
         chroma_settings = chromadb.config.Settings(**settings_params)
         params["client_settings"] = chroma_settings
+    else:
+        # remove all chroma_server_ keys from params
+        params = {
+            key: value
+            for key, value in params.items()
+            if not key.startswith("chroma_server_")
+        }
+
     persist = params.pop("persist", False)
     if not docs_in_params(params):
         params.pop("documents", None)