---
name: langgraph-workflow-creation
version: 1.0.0
description: Create a LangGraph workflow to gather facts using SerperDevTool and process
  them with an AI agent.
inputs:
- API Key for SerperDevTool
- Search Query
steps:
- 'Step 1: Import necessary modules from langgraph and langchain libraries'
- 'Step 2: Create a LangGraph agent using `langgraph.create_react_agent` function
  with SerperDevTool as the tool node'
- 'Step 3: Define the search query and pass it to the agent for fact gathering'
- 'Step 4: Process the gathered facts within the AI agent'
outputs:
- Processed Facts
tags: []
metadata:
  source_repo: https://github.com/jkmaina/LangGraphProjects.git
  extracted_at: ''
  confidence: 0.95
---

# langgraph-workflow-creation

Create a LangGraph workflow to gather facts using SerperDevTool and process them with an AI agent.

## Setup

**Dependencies:**

```text
pip install langchain serperdev
```

**Setup steps:**

1. Install required libraries: pip install langchain serperdev
1. Add API key to .env file: OPENAPI_API_KEY=your_api_key

## Key Files

- `agent.py - Contains the LangGraph agent creation logic`
- `tool_node.py - Defines the SerperDevTool node`

## Steps

1. Step 1: Import necessary modules from langgraph and langchain libraries
2. Step 2: Create a LangGraph agent using `langgraph.create_react_agent` function with SerperDevTool as the tool node
3. Step 3: Define the search query and pass it to the agent for fact gathering
4. Step 4: Process the gathered facts within the AI agent

## Implementation Details

```python
import langgraph
from serperdev import SerperDevTool

def create_agent(api_key, query):
    tool = SerperDevTool(api_key)
    agent = langgraph.create_react_agent(tool=tool)
    facts = agent.run(query)
    return process_facts(facts)
```

## Inputs

- API Key for SerperDevTool
- Search Query

## Outputs

- Processed Facts

## Failure Modes

- API Key not provided
- Invalid Search Query

## Source

Extracted from: [https://github.com/jkmaina/LangGraphProjects.git](https://github.com/jkmaina/LangGraphProjects.git)
Confidence: 0.95