Wrapping Serverless Functions As LangChain Tools
Wrap serverless function as LangChain Tool: wrap in `Tool` abstraction, integrate with LangChain React Agent, enable automatic context triggers via Prompt Engineering, Context Checking, or Custom Parser.
If you have a serverless function that generates SHA256 signatures, you can wrap it as a LangChain Tool and enable it to be automatically invoked in the appropriate context using a LangChain React Agent. Here's how to achieve this:
Step 1: Wrapping the Serverless Function as a Tool
LangChain's Tool is a functional abstraction that allows you to integrate external APIs or functions.
from langchain.tools import Tool
import requests
# Define the tool wrapper
def sha256_signature_tool(input_text: str) -> str:
"""
Calls your serverless signature service.
Args:
input_...