What are some best practices for utilizing the eBay API for analyzing sales data without violating terms and conditions?

When utilizing the eBay API for analyzing sales data, it is important to adhere to eBay's terms and conditions to avoid any violations. One best practice is to ensure that you are only using the API for the intended purposes and not accessing any unauthorized data. Additionally, make sure to properly authenticate your API requests and handle any rate limits imposed by eBay to prevent overloading their servers.

// Example code snippet for properly authenticating eBay API requests
$api_endpoint = 'https://api.ebay.com/some_endpoint';
$api_key = 'your_api_key';

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $api_endpoint);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    'Authorization: Bearer ' . $api_key,
    'Content-Type: application/json',
));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$response = curl_exec($ch);
curl_close($ch);

$data = json_decode($response, true);
// Process the data as needed