Fitness Tracker API

A comprehensive backend API for a fitness and nutrition tracking application, built with NestJS and TypeScript.

Features

• User authentication with JWT
• Food database with search by name and barcode
• Meal logging with portion control
• Exercise tracking with calorie burn calculations
• Goal setting for calories and macronutrients
• Weight progress tracking
• AI-powered food analysis from images and text descriptions

Tech Stack

• NestJS with TypeScript
• MySql with Prisma ORM
• JWT authentication
• Swagger API documentation

Getting Started

Prerequisites

• Node.js (v14 or later)
• Mysql database

Installation

1. Clone the repository
2. Install dependencies:

npm install

3. Set up the environment variables in .env file

4. Initialize the database:

npx prisma migrate dev

5. Start the development server:

npm run start:dev

API Documentation

Once the server is running, you can access the Swagger API documentation at:

http://localhost:3000/api/docs

Authentication

The API uses JWT authentication. To access protected endpoints:

1. Register a new user at /api/auth/register
2. Login at /api/auth/login to get an access token
3. Include the token in the Authorization header as:

Authorization: Bearer YOUR_ACCESS_TOKEN

Database Schema

The database schema includes tables for:

• Users
• Foods
• Meals and MealItems
• Exercises
• Goals
• WeightLogs