lambda

 

duohub x AWS Lambda integration example

This example shows how to use the duohub graph memory integration with AWS Lambda, supporting both Python and TypeScript implementations.

Overview

These Lambda functions integrate with duohub's memory retrieval API to fetch relevant information based on queries. They support both standard queries and memory-specific retrievals using a memoryID.

Requirements

• AWS Account with Lambda access
• Node.js 18+ (for TypeScript) or Python 3.8+ (for Python)
• duohub API key

Setup

1. Clone this repository

2. Install dependencies:

   For TypeScript:

   cd lambda/typescript
   npm install
   # or
   yarn install

   For Python:

   cd lambda/python
   pip install -r requirements.txt

3. Set up your environment variables in AWS Lambda:

   • API_KEY: Your duohub API key

Project Structure

lambda/
├── python/
│   ├── chat_handler.py
│   ├── create_user.py
│   └── list_user_messages.py
└── typescript/
    ├── chat_handler.ts
    ├── create_user.ts
    ├── get_memory_response.ts
    └── list_user_messages.ts

Deployment

TypeScript

1. Build the TypeScript code:

   cd lambda/typescript
   tsc

2. Zip the contents of the dist folder along with node_modules
3. Upload to AWS Lambda

Python

1. Create a ZIP file containing your Python files and dependencies:

   cd lambda/python
   zip -r ../function.zip .

2. Upload to AWS Lambda

Usage

The Lambda functions accept events with the following structure:

TypeScript/JavaScript:

{
  "query": string,      // Required: The query to search for
  "memoryID": string   // Required: Specific memory ID to search within
}

Python:

{
    "query": str,      # Required: The query to search for
    "memoryID": str    # Required: Specific memory ID to search within
}

Available Functions

TypeScript

• chat_handler: Handles chat interactions
• create_user: Creates new users
• get_memory_response: Retrieves memory-specific responses
• list_user_messages: Lists messages for a specific user

Python

• chat_handler: Handles chat interactions
• create_user: Creates new users
• list_user_messages: Lists messages for a specific user