items = [{ 
name: "Dinger”,  
amount: 1100, 
quantity: 2, 
}] 
** if you want to put ' in json array, you can use this way to make a correct json format or you can replace ' and " characters in your product name before sending to Dinger gateway **
items = `[{\"name\":\"Dinger\\'s\",\"amount\": ${totalAmount},\"quantity\":\"1\"}]`;

data = {     
clientId:"87d9eb64-9d64-35d7-b331-2833b4787770" , 
publicKey:"MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC0FeXFG78FHY/o2ekXJJoTxbHTlhrOjteN++EoLrzbwcKq4D4LZL9j1fMl9IEhlgUEo0HIDb871K5loJ8uTEkM27kXVVjv7EPLR0UnEG7blFWfj03FjGjhjyZfPyrFRoC7QvorVRU9TX4y2GyEjgqV+9EWQYZBmOD80dkk/4KsRQIDAQAB" , 
items: items , 
customerName: "Kyaw Kyaw", 
totalAmount: 2200, 
merchantOrderId: merchantOrderId, 
merchantKey: "9e01os1.iyDJia32LW0rE5KXdKfGylg77i8", 
projectName: "Test Shop" , 
merchantName: "Mg Mg" , 
} 

(Remark: items must be stringify) 

transformation algorithm RSA/ECB/PKCS1Padding  

Key to encrypt the request data 

//Key for encryption
keyForEncryption =  MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCFD4IL1suUt/TsJu6zScnvsEdLPuACgBdjX82QQf8NQlFHu2v/84dztaJEyljv3TGPuEgUftpC9OEOuEG29z7z1uOw7c9T/luRhgRrkH7AwOj4U1+eK3T1R+8LVYATtPCkqAAiomkTU+aC5Y2vfMInZMgjX0DdKMctUur8tQtvkwIDAQAB 

encrypteDataWithRsa = rsa(jsonStrigify(data),keyForEncryption)  

encryptedPayload = Base64.getEncoder().encodeToString(encrypteDataWithRsa) 

(Remark: encryptedPayload must be URL Encoded) 

SecretKey <- from merchant portal  

HashValue = encrypt the payload with your secret key by hmac sha256 

Sample Redirect Link �" BaseUrl?payload=encryptedPayload&hashValue=hashValue




                                    

 $items_data = array(
            "name" => "$product_name",
            "amount" => "$amount",
            "quantity" => "$quantity"
        );

        $data_pay = json_encode(array(
            "clientId" => "11996c12-f8df-3bf6-a51d-b105f1862f86",
            "publicKey" => "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDFh7LlYHxmaMacdZR5QHl8qWZhMhrYHSi/22gtETgEw24GhN7zwvWFEpCSgQnKLq2uj2pXbKpH9H5Jmzqw1cWsssfV4A2ucn2lXhuMg900d41vEUMxulcmUpDgZWk4HW4VUJ6UhbrmdHw5MqO50+yCDYkWoS/DQi148oMJR6b9XQIDAQAB",
            "items" => json_encode(array($items_data)),
            "customerName" => $name,
            "totalAmount" => "$total",
            "merchantOrderId" => "$orderId",
            "merchantKey" => "kn5ik01._2An8ynsRXJ5ISfke6Zqnvkt2zE",
            "projectName" => "sannkyi testing",
            "merchantName" => "mtktest"
        ));


        $publicKey = '-----BEGIN PUBLIC KEY-----MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCFD4IL1suUt/TsJu6zScnvsEdLPuACgBdjX82QQf8NQlFHu2v/84dztaJEyljv3TGPuEgUftpC9OEOuEG29z7z1uOw7c9T/luRhgRrkH7AwOj4U1+eK3T1R+8LVYATtPCkqAAiomkTU+aC5Y2vfMInZMgjX0DdKMctUur8tQtvkwIDAQAB-----END PUBLIC KEY-----';

        $rsa = new \phpseclib\Crypt\RSA();

        extract($rsa->createKey(1024));
        $rsa->loadKey($publicKey); // public key
        $rsa->setEncryptionMode(2);
        $ciphertext = $rsa->encrypt($data_pay);
        $value = base64_encode($ciphertext);

        $urlencode_value = urlencode($value);

        $encryptedHashValue = hash_hmac('sha256', $data_pay, '6bef931c471676028ce1640aaa97e92d');

        $redirect_url = "https://prebuilt.dinger.asia/?hashValue=$encryptedHashValue&payload=$urlencode_value";