API Wallet

A fast, lightweight, and secure API wallet services built using Express.js, PostgreSQL, and JWT authentication

⚙️ Tech Stack

• Express.js (Objection, Knex, Joi, JWT)
• PostgreSQL (Database)

📂 Project Structure

project-root/
├── controllers/
├── db/
├── migrations/
├── models/
├── repositories/
├── routes/
├── validators/
├── server.js
├── knexfile.js
├── auth.js
├── .env
└── package.json

📦 Getting Started

Install dependencies

  npm install

Set up environment variables

Create a .env file based on .env.example:

  PORT=5000
  DB_HOST=
  DB_PORT=
  DB_USER=
  DB_PASSWORD=
  DB_NAME=
  JWT_SECRET=

Run migrations

  npx knex migrate:latest

Start the development server

  npm run dev

🌐 API Endpoints

1. GET /api/users/me
   content-type: application/json
   authorization: Bearer xxxxxxxxxxxxxxxxxxxxxxxx
   

2. POST /api/users/register
   content-type: application/json
   {
   "username": "superadmin",
   "password": "Pas$w0rd"
   }
   

3. POST /api/users/login
   content-type: application/json
   {
   "username": "superadmin",
   "password": "Pas$w0rd"
   }
   

4. GET /api/wallet/
   content-type: application/json
   authorization: Bearer xxxxxxxxxxxxxxxxxxxxxxxx
   

5. PUT /api/wallet/topup
   content-type: application/json
   authorization: Bearer xxxxxxxxxxxxxxxxxxxxxxxx
   {
   "amount": 1000000000000
   }
   

6. PUT /api/wallet/deduct
   content-type: application/json
   authorization: Bearer xxxxxxxxxxxxxxxxxxxxxxxx
   {
   "amount": 1000000000000
   }