Exercise Tracker Web App A full stack web application for tracking exercises, allowing users to create, edit, and delete exercise entries. Built with React on the frontend, Node.js and Express on the backend, and MongoDB for data persistence.

Table of Contents Features

Tech Stack

Setup and Installation

Usage

API Endpoints

Folder Structure

Notes

Features Create Exercises: Add new exercise entries with name, reps, weight, unit, and date.

Edit Exercises: Update existing exercise details.

Delete Exercises: Remove unwanted exercise entries.

View Exercises: List all recorded exercises (assuming a HomePage implementation for viewing).

Form Validation: Basic input validation on the backend.

User-friendly navigation: Easy navigation with React Router and icons.

Tech Stack Frontend: React, React Router, React Icons

Backend: Node.js, Express.js

Database: MongoDB with Mongoose ODM

Other: dotenv for environment variables, express-async-handler for async error handling

Setup and Installation Prerequisites Node.js and npm installed

MongoDB instance (local or cloud, e.g. MongoDB Atlas)

Backend Setup Clone the repository

Create a .env file in the root folder with the following:

ini Copy PORT=5000 MONGODB_CONNECT_STRING=<your_mongodb_connection_string> Install dependencies:

bash Copy npm install Start the server:

bash Copy node server.js (or nodemon server.js if you have nodemon installed)

Frontend Setup Navigate to the frontend directory (if separate) or root if unified

Install dependencies:

bash Copy npm install Start the React development server:

bash Copy npm start Usage Open your browser at http://localhost:3000 (React default port)

Use the navigation header to browse pages

Create new exercises via the "Create Exercise" page

Edit existing exercises from the list (implementation of HomePage assumed to allow this)

Delete exercises (assuming the HomePage has a delete feature)

Data is persisted in MongoDB

API Endpoints Method Endpoint Description Request Body Response GET /exercises Retrieve all exercises None Array of exercises POST /exercises Create a new exercise {name, reps, weight, unit, date} Created exercise object GET /exercises/:_id Retrieve one exercise by ID None Exercise object or 404 error PUT /exercises/:_id Update an exercise by ID {name, reps, weight, unit, date} Updated exercise or 404 error DELETE /exercises/:_id Delete an exercise by ID None 204 No Content or 404 error

Folder Structure pgsql Copy /backend ├─ exercise_model.mjs # Mongoose schema and database functions ├─ server.js # Express server and API routes /frontend ├─ src ├─ components ├─ Header.js ├─ Footer.js ├─ pages ├─ HomePage.js ├─ CreateExercisePage.js ├─ EditExercisePage.js ├─ App.js ├─ index.js Notes The date input expects the format dd-mm-yy (e.g. 29-05-25). Ensure valid date strings are sent.

Units for weight must be either "kgs" or "lbs" — ensure consistency on frontend and backend.

The backend validates all input and returns 400 status with error messages on invalid data.

Adjust MongoDB connection string in .env for your environment.

You can extend the HomePage to list exercises and allow navigation to edit or delete.