Fitness-plus Membership Backend API

Overview

Fitness-plus offers gym memberships with various billing structures. This backend system manages memberships, including annual and monthly billing, as well as optional add-on services such as personal training sessions and towel rentals. The API also handles invoicing for new members, sends email reminders for upcoming payments, and includes a cron job to check for upcoming membership fees.

Features

• Manage memberships with annual and monthly billing.
• Handle optional add-on services with separate monthly charges.
• Combine the annual membership fee with the first month's add-on service charges for new members.
• Send email reminders for upcoming payments.
• Cron job to check for upcoming membership fees and send reminders.

Technologies Used

• Nest.js
• TypeORM
• PostgreSQL
• NodeMailer

Prerequisites

• Node.js and npm installed
• PostgreSQL database setup
• Gmail account for sending emails

Installation

1. Clone the repository:

   git clone https://github.com/NuelUzoma/fitness-plus.git
   cd fitness-plus

2. Install dependencies:

   npm install

3. Set up environment variables:

   Create a .env file in the root directory and add the following variables:

   DB_HOST=localhost
   DB_PORT=5432
   DB_USERNAME=your_db_username
   DB_PASSWORD=your_db_password
   DB_DATABASE=fitness_plus
   MAIL_HOST=smtp.gmail.com
   MAIL_PORT=587
   MAIL_USER=your_gmail_username
   MAIL_PASS=your_gmail_password

4. Run the database migration to set up the database schema:

   npm run typeorm migration:run

Running the Application

1. Start the Nest.js server:

   npm run start

Usage

Endpoints

Memberships

• Create a new membership

  POST /api/memberships

  Request Body:

  {
    "firstName": "Kelechi",
    "lastName": "Ogu",
    "membershipType": "Annual Basic",
    "email": "[email protected]",
    "isFirstMonth": true
  }

  Response:

  {
    "firstName": "Kelechi",
    "lastName": "Ogu",
    "membershipType": "Annual Basic",
    "email": "[email protected]",
    "isFirstMonth": true,
    "startDate": "2024-06-11T20:16:26.217Z",
    "dueDate": "2025-06-10T23:00:00.000Z",
    "totalAmount": 500,
    "id": 22
  }

• Get all memberships

  GET /api/memberships

• Update membership details

  PUT /api/memberships

Add-On Services

• Create a new add-on service

  POST /api/addons

  Request Body:

  {
    "serviceName": "Personal Training"
  }

  Response:

  {
    "serviceName": "Personal Training",
    "dueDate": "2024-07-10T23:00:00.000Z",
    "monthlyAmount": 100,
    "id": 21
  }

• Get all add-on services

  GET /api/addons

Email Notifications

Emails are sent using NodeMailer configured with a Gmail SMTP server. Ensure that your Gmail account allows less secure apps or generate an app-specific password for better security.

Cron Job

A cron job runs daily at midnight to check for upcoming membership fees and send reminders.