Simple Chatbot

Description

Simple Chatbot is a sample project to demostrate how to build a Chatbot with AWS serverless architecture.

The frontend is written in React and deployed to CloudFront with Cognito authentication.

The backend has 3 options:

• Lambda function URL (with streaming support)
• API Gateway (Rest API) + Lambda
• API Gateway (Websocket API) + Lambda (with streaming support)

Lambda uses Converse API to interact with LLM models in Bedrock.

The conversation history is stored in browser local storage for simpility.

Architecture

Usage

Customization

Go to simple-chatbot.ts and update the settings accordinly:

const props = {
  appName: process.env.APP_NAME || "SimpleChatbot",
  allowedDomain: process.env.ALLOWED_DOMAIN || "amazon.com", // Allowed email domain in Cognito
  region: process.env.REGION || "ap-southeast-2",
  bedrockRegion: process.env.BEDROCK_REGION || "ap-southeast-2",
  modelId:
    process.env.MODEL_ID || "apac.anthropic.claude-3-5-sonnet-20240620-v1:0",
};

Create stack

cd cdk
npm install
cdk deploy

Destroy stack

cd cdk
cdk destroy

Demo