This is a full-stack cloud application hosted on AWS that enables users to submit a contact form via a static website. When users fill out the form, their submission is securely sent to a backend API hosted on EC2 and stored as JSON files in Amazon S3. The entire setup runs inside a custom VPC with secure architecture and performance optimization using CloudFront.
- Host a static website (HTML/CSS/JS) on S3 with a Contact Page.
- Create a secure API backend using Node.js on an EC2 instance to process form submissions.
- Store the submitted data in Amazon S3 as individual
.jsonfiles. - Secure and scale the backend using:
- An Application Load Balancer (ALB)
- A custom VPC with public/private subnets and NAT
- Proper IAM roles and S3 permissions
- CloudFront as a secure CDN layer
- Prevent CORS/mixed-content issues and maintain security compliance.
| Layer | Technology/Service | Purpose |
|---|---|---|
| Frontend | HTML, CSS, JavaScript (Vanilla) | User interface + Fetch API |
| Static Hosting | Amazon S3 | Host frontend website |
| Backend | Node.js + Express (on EC2) | API to receive and store form data |
| Load Balancing | Application Load Balancer (ALB) | Route traffic |
| Networking | VPC, Subnets, NAT Gateway, Route Tables | Secure networking layers |
| Storage | Amazon S3 | Store form submissions as JSON |
| Permissions | IAM Roles & Policies | Secure access between Users, EC2, and S3 |
| Distribution | Amazon CloudFront | CDN for frontend delivery |
This project simulates a real-world use case where:
- A company website has a contact form.
- All data submissions need to be stored securely.
- Static frontend is fast and globally available via CDN.
- Backend is private and secure but scalable.
- Data is stored without a traditional database, using cost-effective object storage (S3).
This project demonstrates how to build a fully integrated, cloud-native application on AWS using core services like S3, EC2, VPC, CloudFront, and IAM.
It’s a complete solution that combines frontend, backend, networking, and security — all hosted reliably and scalably in the AWS ecosystem.