# VAT Number Validation API

This Node.js application provides an API interface to validate European VAT numbers using the official VIES SOAP service.

## Features

- Validate VAT numbers for any EU member state
- GET and POST HTTP support
- JSON responses with company name, address, and validity

## Installation

```bash
npm install express cors body-parser soap
```

## Usage

### Start the server

```bash
node server.js
```

### Endpoints

#### GET `/api/validate-vat`

**Query parameters:**

- `countryCode`: ISO 2-letter country code (e.g., SK, DE, FR)
- `vatNumber`: VAT number without country code

**Example:**

```
http://localhost:3000/api/validate-vat?countryCode=SK&vatNumber=1234567890
```

#### POST `/api/validate-vat`

**Request body (JSON):**

```json
{
  "countryCode": "SK",
  "vatNumber": "1234567890"
}
```

**Response:**

```json
{
  "country": "SK",
  "VAT": "1234567890",
  "name": "Example Company",
  "address": "Main Street 123, City, Country",
  "valid": true
}
```

## License

MIT