Integrating Third-Party APIs in CodeIgniter

Integrating Third-Party APIs in CodeIgniter — a practical guide to CodeIgniter third-party API with clear examples you can reuse in real projects.

CodeIgniter Tutorial Series (64/74). Prefer one article? Read the complete CodeIgniter tutorial.

Short description

Use CI4’s HTTP client (or curl) to fetch/post data to payment, SMS, or weather providers. Keep keys in `.env`.

HTTP client GET

$client = ConfigServices::curlrequest();
$response = $client->get('https://api.example.com/data', [
    'headers' => ['Authorization' => 'Bearer ' . env('API_TOKEN')],
]);
$data = json_decode($response->getBody(), true);