Recharge API Integration with PHP

<?php
/**
 * A1Topup Recharge API Integration - Complete Implementation
 * File: recharge_api.php
 */

class A1TopupRechargeAPI {
    private $api_key;
    private $api_secret;
    private $base_url = "https://api.a1topup.com/v1/";
    
    public function __construct($api_key, $api_secret) {
        $this->api_key = $api_key;
        $this->api_secret = $api_secret;
    }
    
    /**
     * Make API request
     */
    private function apiCall($endpoint, $method = 'GET', $data = null) {
        $url = $this->base_url . $endpoint;
        $auth = base64_encode($this->api_key . ':' . $this->api_secret);
        
        $headers = [
            'Authorization: Basic ' . $auth,
            'Content-Type: application/json',
            'Accept: application/json'
        ];
        
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30);
        
        if ($method == 'POST') {
            curl_setopt($ch, CURLOPT_POST, true);
            if ($data) {
                curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
            }
        }
        
        $response = curl_exec($ch);
        $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        
        if (curl_errno($ch)) {
            $error = curl_error($ch);
            curl_close($ch);
            return ['error' => true, 'message' => 'cURL Error: ' . $error];
        }
        
        curl_close($ch);
        
        $result = json_decode($response, true);
        return [
            'success' => ($http_code == 200),
            'status' => $http_code,
            'data' => $result
        ];
    }
    
    /**
     * Check mobile operator
     */
    public function checkOperator($mobile_number) {
        return $this->apiCall('operator/lookup', 'POST', [
            'mobile' => $mobile_number
        ]);
    }
    
    /**
     * Get account balance
     */
    public function getBalance() {
        return $this->apiCall('account/balance', 'GET');
    }
    
    /**
     * Process mobile recharge
     */
    public function processRecharge($mobile, $amount, $operator, $circle = null) {
        $data = [
            'mobile' => $mobile,
            'amount' => $amount,
            'operator' => $operator,
            'reference_id' => 'RCH_' . time() . '_' . rand(1000, 9999)
        ];
        
        if ($circle) {
            $data['circle'] = $circle;
        }
        
        return $this->apiCall('recharge/process', 'POST', $data);
    }
    
    /**
     * Check transaction status
     */
    public function checkTransaction($transaction_id) {
        return $this->apiCall('transaction/status/' . $transaction_id, 'GET');
    }
    
    /**
     * Get recharge plans
     */
    public function getPlans($operator, $circle = null) {
        $endpoint = 'plans/' . $operator;
        if ($circle) {
            $endpoint .= '/' . $circle;
        }
        return $this->apiCall($endpoint, 'GET');
    }
}

// Usage Example
$api = new A1TopupRechargeAPI('YOUR_API_KEY', 'YOUR_API_SECRET');

// Example 1: Check balance
$balance = $api->getBalance();
if ($balance['success']) {
    echo "Current Balance: ₹" . $balance['data']['balance'] . "\\n";
}

// Example 2: Process recharge
$recharge = $api->processRecharge('9876543210', 299, 'JIO', 'MUMBAI');
if ($recharge['success']) {
    echo "Recharge Successful!\\n";
    echo "Transaction ID: " . $recharge['data']['transaction_id'] . "\\n";
    echo "Status: " . $recharge['data']['status'] . "\\n";
} else {
    echo "Recharge Failed: " . $recharge['data']['message'] . "\\n";
}
?>