BotReminder – Cloud-Based Reminder Chatbot

BotReminder is a cloud-based reminder system that allows users to schedule reminders via a conversational chatbot interface. The system stores reminder information and sends email notifications at the specified time using AWS serverless services.

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Features

• Conversational chatbot using Amazon Lex
• Serverless backend using AWS Lambda
• Reminder storage with Amazon DynamoDB
• Scheduled reminder checks using Amazon EventBridge
• Email notifications via SMTP

System Architecture

1. User interacts with the chatbot (Amazon Lex)
2. Lex triggers a Lambda function to store reminder data
3. Reminder details are stored in DynamoDB
4. EventBridge triggers a Lambda function every minute
5. Lambda checks reminders and sends email notifications

Technologies Used

• Amazon Lex
• AWS Lambda
• Amazon DynamoDB
• Amazon EventBridge (CloudWatch Events)
• Python
• SMTP (Email notifications)

Code Availability

⚠️ Note: This repository contains representative and partial code reconstructed from the original project report.
The complete production source code is no longer available.

The provided code demonstrates:

• Data ingestion from Lex
• DynamoDB storage logic
• Reminder polling and email notification logic

Academic Context

This project was developed as part of a Bachelor of Technology in Computer Science Engineering academic project (Oct–Dec 2021) under institutional and industry guidance.

• 📄 Project Report

Contributors

• Udatya Deb Prakash
• Pratap Singh
• Manan Mal

Disclaimer

This repository is intended for educational and demonstrative purposes only.