Add RunnableExecutor component

src/backend/langflow/components/utilities/RunnableExecutor.py

@@ -0,0 +1,42 @@
+from langchain_core.runnables import Runnable
+
+from langflow import CustomComponent
+from langflow.field_typing import Text
+
+
+class RunnableExecComponent(CustomComponent):
+    documentation: str = "http://docs.langflow.org/components/custom"
+    display_name = "Runnable Executor"
+    beta = True
+
+    def build_config(self):
+        return {
+            "input_key": {
+                "display_name": "Input Key",
+                "info": "The key to use for the input.",
+            },
+            "inputs": {
+                "display_name": "Inputs",
+                "info": "The inputs to pass to the runnable.",
+            },
+            "runnable": {
+                "display_name": "Runnable",
+                "info": "The runnable to execute.",
+            },
+            "output_key": {
+                "display_name": "Output Key",
+                "info": "The key to use for the output.",
+            },
+        }
+
+    def build(
+        self,
+        input_key: str,
+        inputs: str,
+        runnable: Runnable,
+        output_key: str = "output",
+    ) -> Text:
+        result = runnable.invoke({input_key: inputs})
+        result = result.get(output_key)
+        self.status = result
+        return result