feat: add extra tools and utilities

src/backend/langflow/config.yaml

@@ -44,6 +44,23 @@ tools:
   - TMDB API
   - Podcast API
   - QuerySQLDataBaseTool
+  - InfoSQLDatabaseTool
+  - ListSQLDatabaseTool
+  # - QueryCheckerTool
+  - BingSearchRun
+  - GoogleSearchRun
+  - GoogleSearchResults
+  - JsonListKeysTool
+  - JsonGetValueTool
+  - PythonREPLTool
+  - PythonAstREPLTool
+  - RequestsGetTool
+  - RequestsPostTool
+  - RequestsPatchTool
+  - RequestsPutTool
+  - RequestsDeleteTool
+  - WikipediaQueryRun
+  - WolframAlphaQueryRun
 
 wrappers:
   - RequestsWrapper
@@ -95,4 +112,15 @@ documentloaders:
 textsplitters:
   - CharacterTextSplitter
 
+utilities:
+  - BingSearchAPIWrapper
+  - GoogleSearchAPIWrapper
+  - GoogleSerperAPIWrapper
+  - SearxResults
+  - SearxSearchWrapper
+  - SerpAPIWrapper
+  - WikipediaAPIWrapper
+  - WolframAlphaAPIWrapper
+  # - ZapierNLAWrapper
+
 dev: false

src/backend/langflow/interface/custom_lists.py

@@ -9,6 +9,7 @@ from langchain import (
     memory,
     requests,
     text_splitter,
+    utilities,
     vectorstores,
 )
 from langchain.agents import agent_toolkits
@@ -76,3 +77,8 @@ documentloaders_type_to_cls_dict: dict[str, Any] = {
 textsplitter_type_to_cls_dict: dict[str, Any] = dict(
     inspect.getmembers(text_splitter, inspect.isclass)
 )
+
+## Utilities
+utility_type_to_cls_dict: dict[str, Any] = dict(
+    inspect.getmembers(utilities, inspect.isclass)
+)

src/backend/langflow/interface/listing.py

@@ -8,6 +8,7 @@ from langflow.interface.prompts.base import prompt_creator
 from langflow.interface.text_splitters.base import textsplitter_creator
 from langflow.interface.toolkits.base import toolkits_creator
 from langflow.interface.tools.base import tool_creator
+from langflow.interface.utilities.base import utility_creator
 from langflow.interface.vector_store.base import vectorstore_creator
 from langflow.interface.wrappers.base import wrapper_creator
 
@@ -26,6 +27,7 @@ def get_type_dict():
         "vectorStore": vectorstore_creator.to_list(),
         "embeddings": embedding_creator.to_list(),
         "textSplitters": textsplitter_creator.to_list(),
+        "utilities": utility_creator.to_list(),
     }
 
 

src/backend/langflow/interface/tools/base.py

@@ -119,21 +119,23 @@ class ToolCreator(LangChainTypeCreator):
             params = self.type_to_loader_dict[name]["params"]  # type: ignore
             base_classes += [name]
         elif tool_type in OTHER_TOOLS:
+            print(tool_type)
             tool_dict = build_template_from_class(tool_type, OTHER_TOOLS)
             fields = tool_dict["template"]
 
             # Pop unnecessary fields and add name
-            fields.pop("_type")
-            fields.pop("return_direct")
-            fields.pop("verbose")
+            fields.pop("_type")  # type: ignore
+            fields.pop("return_direct")  # type: ignore
+            fields.pop("verbose")  # type: ignore
 
             tool_params = {
-                "name": fields.pop("name")["value"],
-                "description": fields.pop("description")["value"],
+                "name": fields.pop("name")["value"],  # type: ignore
+                "description": fields.pop("description")["value"],  # type: ignore
             }
 
             fields = [
-                TemplateField(name=name, **field) for name, field in fields.items()
+                TemplateField(name=name, field_type=field["type"], **field)
+                for name, field in fields.items()  # type: ignore
             ]
             base_classes += tool_dict["base_classes"]
 

src/backend/langflow/interface/tools/constants.py

@@ -5,14 +5,50 @@ from langchain.agents.load_tools import (
     _EXTRA_OPTIONAL_TOOLS,
     _LLM_TOOLS,
 )
-from langchain.tools.json.tool import JsonSpec
-from langchain.tools.sql_database.tool import QuerySQLDataBaseTool
+from langchain.tools.bing_search.tool import BingSearchRun
+from langchain.tools.google_search.tool import GoogleSearchResults, GoogleSearchRun
+from langchain.tools.json.tool import JsonGetValueTool, JsonListKeysTool, JsonSpec
+from langchain.tools.python.tool import PythonAstREPLTool, PythonREPLTool
+from langchain.tools.requests.tool import (
+    RequestsDeleteTool,
+    RequestsGetTool,
+    RequestsPatchTool,
+    RequestsPostTool,
+    RequestsPutTool,
+)
+from langchain.tools.sql_database.tool import (
+    InfoSQLDatabaseTool,
+    ListSQLDatabaseTool,
+    QueryCheckerTool,
+    QuerySQLDataBaseTool,
+)
+from langchain.tools.wikipedia.tool import WikipediaQueryRun
+from langchain.tools.wolfram_alpha.tool import WolframAlphaQueryRun
 
 from langflow.interface.tools.custom import PythonFunction
 
 FILE_TOOLS = {"JsonSpec": JsonSpec}
 CUSTOM_TOOLS = {"Tool": Tool, "PythonFunction": PythonFunction}
-OTHER_TOOLS = {"QuerySQLDataBaseTool": QuerySQLDataBaseTool}
+OTHER_TOOLS = {
+    "QuerySQLDataBaseTool": QuerySQLDataBaseTool,
+    "InfoSQLDatabaseTool": InfoSQLDatabaseTool,
+    "ListSQLDatabaseTool": ListSQLDatabaseTool,
+    "QueryCheckerTool": QueryCheckerTool,
+    "BingSearchRun": BingSearchRun,
+    "GoogleSearchRun": GoogleSearchRun,
+    "GoogleSearchResults": GoogleSearchResults,
+    "JsonListKeysTool": JsonListKeysTool,
+    "JsonGetValueTool": JsonGetValueTool,
+    "PythonREPLTool": PythonREPLTool,
+    "PythonAstREPLTool": PythonAstREPLTool,
+    "RequestsGetTool": RequestsGetTool,
+    "RequestsPostTool": RequestsPostTool,
+    "RequestsPatchTool": RequestsPatchTool,
+    "RequestsPutTool": RequestsPutTool,
+    "RequestsDeleteTool": RequestsDeleteTool,
+    "WikipediaQueryRun": WikipediaQueryRun,
+    "WolframAlphaQueryRun": WolframAlphaQueryRun,
+}
 ALL_TOOLS_NAMES = {
     **_BASE_TOOLS,
     **_LLM_TOOLS,  # type: ignore

src/backend/langflow/interface/tools/util.py

@@ -5,7 +5,6 @@ from typing import Dict, Union
 from langchain.agents.tools import Tool
 
 
-
 def get_func_tool_params(func, **kwargs) -> Union[Dict, None]:
     tree = ast.parse(inspect.getsource(func))
 

src/backend/langflow/interface/types.py

@@ -8,6 +8,7 @@ from langflow.interface.prompts.base import prompt_creator
 from langflow.interface.text_splitters.base import textsplitter_creator
 from langflow.interface.toolkits.base import toolkits_creator
 from langflow.interface.tools.base import tool_creator
+from langflow.interface.utilities.base import utility_creator
 from langflow.interface.vector_store.base import vectorstore_creator
 from langflow.interface.wrappers.base import wrapper_creator
 
@@ -42,6 +43,7 @@ def build_langchain_types_dict():  # sourcery skip: dict-assign-update-to-union
         vectorstore_creator,
         documentloader_creator,
         textsplitter_creator,
+        utility_creator,
     ]
 
     all_types = {}

src/backend/langflow/interface/utilities/base.py

@@ -0,0 +1,36 @@
+from typing import Dict, List, Optional
+
+from langflow.interface.base import LangChainTypeCreator
+from langflow.interface.custom_lists import utility_type_to_cls_dict
+from langflow.settings import settings
+from langflow.utils.logger import logger
+from langflow.utils.util import build_template_from_class
+
+
+class UtilityCreator(LangChainTypeCreator):
+    type_name: str = "utilities"
+
+    @property
+    def type_to_loader_dict(self) -> Dict:
+        return utility_type_to_cls_dict
+
+    def get_signature(self, name: str) -> Optional[Dict]:
+        """Get the signature of a utility."""
+        try:
+            return build_template_from_class(name, utility_type_to_cls_dict)
+        except ValueError as exc:
+            raise ValueError(f"Utility {name} not found") from exc
+
+        except AttributeError as exc:
+            logger.error(f"Utility {name} not loaded: {exc}")
+            return None
+
+    def to_list(self) -> List[str]:
+        return [
+            utility.__name__
+            for utility in self.type_to_loader_dict.values()
+            if utility.__name__ in settings.utilities or settings.dev
+        ]
+
+
+utility_creator = UtilityCreator()

src/backend/langflow/settings.py

@@ -18,6 +18,7 @@ class Settings(BaseSettings):
     wrappers: List[str] = []
     toolkits: List[str] = []
     textsplitters: List[str] = []
+    utilities: List[str] = []
     dev: bool = False
 
     class Config:
@@ -42,6 +43,7 @@ class Settings(BaseSettings):
         self.wrappers = new_settings.wrappers or []
         self.toolkits = new_settings.toolkits or []
         self.textsplitters = new_settings.textsplitters or []
+        self.utilities = new_settings.utilities or []
         self.dev = new_settings.dev or False
 
 

src/frontend/src/utils.ts

@@ -13,7 +13,8 @@ import {
   QuestionMarkCircleIcon,
   FingerPrintIcon,
   ScissorsIcon,
-  CircleStackIcon
+  CircleStackIcon,
+  Squares2X2Icon
 } from "@heroicons/react/24/outline";
 import { Connection, Edge, Node, ReactFlowInstance } from "reactflow";
 import { FlowType } from "./types/flow";
@@ -85,6 +86,7 @@ export const nodeColors: {[char: string]: string} = {
   textsplitters: "#B47CB5",
   toolkits:"#DB2C2C",
   wrappers:"#E6277A",
+  utilities:"#31A3CC",
   unknown:"#9CA3AF"
 };
 
@@ -103,6 +105,7 @@ export const nodeNames:{[char: string]: string} = {
   toolkits:"Toolkits",
   wrappers:"Wrappers",
   textsplitters: "Text Splitters",
+  utilities:"Utilities",
   unknown:"Unknown"
 };
 
@@ -121,6 +124,7 @@ export const nodeIcons:{[char: string]: React.ForwardRefExoticComponent<React.SV
   toolkits:WrenchScrewdriverIcon,
   textsplitters:ScissorsIcon,
   wrappers:GiftIcon,
+  utilities:Squares2X2Icon,
   unknown:QuestionMarkCircleIcon
 };