NexaBrand: AI-Powered Branding Assistant

Overview

NexaBrand is a full-stack SaaS application that generates AI-driven branding snippets and keyword suggestions for businesses. This project serves as a tutorial for building AI-powered SaaS applications from scratch, leveraging modern cloud technologies.

✨ Features

• AI-generated brand snippets and keyword suggestions
• Full authentication system
• Serverless architecture for scalability
• Responsive and modern UI with TailwindCSS
• Deployed on AWS Lambda and Vercel

🛠 Tech Stack

Backend Stack

Type	Tech
Language	Python
Framework	FastAPI
Hosting	AWS (Lambda + API Gateway)
Other	OpenAI API, AWS CDK, Docker

Frontend Stack

Type	Tech
Language	TypeScript
Framework	Next.js / React
Styling	TailwindCSS
Hosting	Vercel

📦 Setup Instructions

Prerequisites

Ensure you have the following installed:

• Node.js (v16+)
• Python 3.9+
• AWS CLI (configured with necessary permissions)
• Docker (for building Lambda layers)
• CDK CLI (for AWS Infrastructure deployment)

Backend Setup

# Clone the repository
git clone https://github.com/yourusername/nexabrand.git
cd nexabrand

# Set up a virtual environment and install dependencies
python -m venv venv
source venv/bin/activate   # On Windows, use `venv\Scripts\activate`
pip install -r requirements.txt

# Run the backend locally
uvicorn app.main:app --reload

The backend will be available at http://127.0.0.1:8000.

Frontend Setup

# Navigate to the frontend directory
cd frontend

# Install dependencies
npm install

# Run the development server
npm run dev

The frontend will be available at http://localhost:3000.

🚀 AWS Deployment

# Deploy backend using AWS CDK
cd nexabrand-infra
cdk deploy

# Deploy frontend to Vercel
vercel --prod

📂 Lambda Layer ZIP

For users having trouble building the Lambda layer, the pre-built layer is available in:

nexabrand-infra/lambda_base_layer/layer.zip

You can either build it manually using Docker or use the provided file.

📡 API Endpoints

Method	Endpoint	Description
POST	/generate-snippet	Generates branding snippets using OpenAI
POST	/generate-keywords	Suggests brand-related keywords
GET	/status	Health check for the API

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🚀 Start building with NexaBrand today! 🚀