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Tutorials CodeIgniter 4 Libraries and Services CI4

Libraries and Services CI4

5 min read
Use Config/Services.php to register and retrieve shared singleton service instances.

Services and Libraries

// app/Config/Services.php — register custom services
class Services extends BaseService {
    public static function paymentGateway(bool $getShared = true): PaymentGateway {
        if ($getShared) return static::getSharedInstance("paymentGateway");
        return new StripeGateway(
            config("Payment")->apiKey,
            config("Payment")->secretKey
        );
    }
}

// Use anywhere
$gateway = ConfigServices::paymentGateway();

// Built-in services
$email       = ConfigServices::email();
$validator   = ConfigServices::validation();
$request     = ConfigServices::request();
$response    = ConfigServices::response();
$uri         = ConfigServices::uri();
$logger      = ConfigServices::logger();