### API Documentation Examples

Source: https://help.comgate.cz/docs/pro-programatory

Detailed API documentation for custom e-shop integration. Includes examples for CURL, PHP, JAVA, and Python requests.

```curl
curl -X POST \
  'https://gate.comgate.cz/api/v1.0/payments' \
  -H 'Content-Type: application/json' \
  -H 'Cache-Control: no-cache' \
  -d '{ 
    "amount": 100, 
    "currency": "CZK", 
    "order_id": "12345", 
    "customer": { 
      "email": "test@example.com" 
    }, 
    "redirect_url": "https://example.com/return", 
    "notification_url": "https://example.com/notify" 
  }'
```

```php
<?php

$data = [
    'amount' => 100,
    'currency' => 'CZK',
    'order_id' => '12345',
    'customer' => [
        'email' => 'test@example.com'
    ],
    'redirect_url' => 'https://example.com/return',
    'notification_url' => 'https://example.com/notify'
];

$options = [
    'http' => [
        'header'  => "Content-type: application/json\r\n" . "Cache-Control: no-cache\r\n",
        'method'  => 'POST',
        'content' => json_encode($data),
    ],
];
$context  = stream_context_create($options);
$result = file_get_contents('https://gate.comgate.cz/api/v1.0/payments', false, $context);

if ($result === FALSE) { /* Handle error */ } else {
    var_dump(json_decode($result));
}
```

```java
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.charset.StandardCharsets;

public class PaymentGateway {

    public static void main(String[] args) throws Exception {
        URL url = new URL("https://gate.comgate.cz/api/v1.0/payments");
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Content-Type", "application/json");
        connection.setRequestProperty("Cache-Control", "no-cache");
        connection.setDoOutput(true);

        String jsonBody = "{\"amount\": 100, \"currency\": \"CZK\", \"order_id\": \"12345\", \"customer\": { \"email\": \"test@example.com\" }, \"redirect_url\": \"https://example.com/return\", \"notification_url\": \"https://example.com/notify\"}";

        try (OutputStream os = connection.getOutputStream()) {
            byte[] input = jsonBody.getBytes(StandardCharsets.UTF_8);
            os.write(input, 0, input.length);
        }

        int responseCode = connection.getResponseCode();
        System.out.println("Response Code: " + responseCode);

        // Read response
        // ...
    }
}
```

```python
import requests
import json

url = "https://gate.comgate.cz/api/v1.0/payments"
headers = {
    'Content-Type': 'application/json',
    'Cache-Control': 'no-cache'
}
data = {
    "amount": 100,
    "currency": "CZK",
    "order_id": "12345",
    "customer": {
        "email": "test@example.com"
    },
    "redirect_url": "https://example.com/return",
    "notification_url": "https://example.com/notify"
}

response = requests.post(url, headers=headers, data=json.dumps(data))

print(response.status_code)
print(response.json())
```

--------------------------------

### Example PayPal Client ID and Secret

Source: https://help.comgate.cz/docs/paypal

These are example credentials for a PayPal application. Ensure you use your actual Client ID and Secret obtained from the PayPal Developer Dashboard.

```text
Client ID: AbCDefGh1234567890abcdefghijklmnopQRSTUVWXyz
Secret : EJd93kd82KDjS93kd92KDJd9s2KDJd92kd92kd9DJ
```