Authorize.net Payment API

A simple backend API for processing payments with Authorize.net. Built with Next.js API routes.

Features

• Process payments through Authorize.net
• No authentication required - all endpoints are public
• SQLite database for storing transaction records
• TypeScript for type safety

API Endpoints

Process Payment

• POST /api/payment/process
• Process a new payment through Authorize.net
• Request body:

{
  "amount": number,
  "cardNumber": string,
  "expirationMonth": string,
  "expirationYear": string,
  "cvv": string,
  "billingInfo": {
    "firstName": string,
    "lastName": string,
    "address": string,
    "city": string,
    "state": string,
    "zip": string
  }
}

• Response:

{
  "transactionId": string,
  "status": "success" | "failed",
  "message": string
}

Get Transaction Status

• GET /api/payment/transaction/:id
• Check the status of a transaction
• Response:

{
  "transactionId": string,
  "status": "success" | "failed",
  "amount": number,
  "cardLast4": string,
  "errorMessage": string | null,
  "createdAt": string
}

Getting Started

1. Clone the repository

2. Copy .env.example to .env and fill in your Authorize.net credentials:

AUTHORIZE_NET_API_LOGIN_ID=your_login_id
AUTHORIZE_NET_TRANSACTION_KEY=your_transaction_key
AUTHORIZE_NET_ENVIRONMENT=SANDBOX # or PRODUCTION

3. Install dependencies:

bun install

4. Initialize the database:

bunx prisma db push

5. Start the development server:

bun dev

Environment Variables

• AUTHORIZE_NET_API_LOGIN_ID: Your Authorize.net API Login ID
• AUTHORIZE_NET_TRANSACTION_KEY: Your Authorize.net Transaction Key
• AUTHORIZE_NET_ENVIRONMENT: Environment to use (SANDBOX or PRODUCTION)

Database Schema

The project uses SQLite with Prisma ORM. Here's the main schema for transactions:

model Transaction {
  id            String      @id @default(cuid())
  amount        Float
  status        String
  transactionId String      @unique
  createdAt     DateTime    @default(now())
  updatedAt     DateTime    @updatedAt
}

Error Handling

All API endpoints return standard error responses:

{
  "error": "Error message here",
  "status": 400 // HTTP status code
}