☕ Cloud-Native Cafe Management System

A scalable, low-latency cafe ordering and payment system built using serverless AWS architecture

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📌 Overview

This project is a cloud-native cafe management and ordering system designed to handle real-world ordering workloads with reliable payment workflows.

The frontend is built using HTML, CSS, and JavaScript, while the backend is implemented in PHP and deployed using AWS Lambda to achieve a fully serverless architecture.

RESTful APIs are exposed via AWS API Gateway, with persistent data stored in AWS RDS. Secure and compliant payment processing is handled using Cashfree.

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✨ Key Features

• Serverless Backend powered by AWS Lambda
• RESTful API Design using API Gateway
• Secure Payment Processing with Cashfree
• Low-Latency Order Management using AWS RDS
• Auto-Scaling during peak cafe ordering hours
• Dockerized Setup for consistent local and cloud environments

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🧱 Architecture

• Client (HTML / CSS / JavaScript)
• AWS API Gateway
• AWS Lambda (PHP backend)
• AWS RDS (orders & payment state)
• Cashfree Payment Gateway

Request Flow:

Client → API Gateway → Lambda (PHP)
       → AWS RDS → Cashfree Payment
       ← Secure Callback Handling

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🛠️ Tech Stack

Frontend	HTML, CSS, JavaScript
Backend	PHP
API Layer	AWS API Gateway
Compute	AWS Lambda
Database	AWS RDS
Payments	Cashfree
Containerization	Docker

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⚙️ Engineering Notes

• Designed for high availability during peak ordering times
• Implemented circuit-breaker logic for external payment API calls
• Handled secure payment callbacks to prevent duplicate transactions
• Focused on low-latency state management for real-time order updates

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📁 Project Structure

cafe-management-system/
├── frontend/
│   ├── index.html
│   ├── styles.css
│   └── app.js
├── backend/
│   ├── handlers/
│   ├── services/
│   ├── config/
│   └── index.php
├── Dockerfile
├── database.sql
└── README.md

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🚀 Installation & Local Setup

Prerequisites

• Docker installed
• AWS account with Lambda & API Gateway enabled
• AWS RDS instance configured
• Cashfree merchant credentials

Local Development

git clone <repository-url>
cd cafe-management-system

docker build -t cafe-system .
docker run -p 8080:8080 cafe-system

The application will be available at:

http://localhost:8080

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☁️ Deployment (AWS)

• Package the PHP backend for AWS Lambda
• Deploy Lambda functions
• Expose APIs using API Gateway
• Configure environment variables for RDS and Cashfree
• Enable secure HTTPS endpoints

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🚦 System Characteristics

Latency	Low
Scalability	Automatic (Serverless)
API Type	REST
Availability	High

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👤 Author

Vishal Soni
Cloud & DevOps Engineer
Email: vishalsoni6350@gmail.com

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⭐ If you find this project useful, consider starring the repository.