Android Native SDK Integration

class Activity extends AppCompatActivity implements CheckoutResultListener {
    ...
}

var options = {
  amount: "20000",
  currency: "IDR",
  order_ref_id: "order2314",              // optional, your order reference
  customer: {
    customer_ref_id: "cust_001",          // optional, your customer reference
    given_name: "Imam Sugiarto",
    email: "imam.sugiarto@koss.info",     // mandatory
    mobile: "08972638003",
    address: {                            // mandatory for BNPL
        receiver_name: "Jude Casper",
        receiver_phone: "8987654321",
        label: "Judes Address",
        address_line_1: "Cambridge layout",
        address_line_2: "Apartment #786",
        city: "Bangalore",
        region: "Jogupalya",
        country: "Indonesia",
        postal_code: "560008",
        landmark: "Kota Jakarta Selatan"
    }
  },
  items: [
    {
        "name": "LED Television",
        "qty": 1,
        "price": "925001.55",
        "logo": "/static/tv_image.jpg"
    }
  ]
};
// Create Orders 
dpay.orders.create(options).then(resp => {
    console.log(resp);
    // order_id = resp.order_id;
})
.catch(error => {
    console.log(error.err + ' | ' + JSON.stringify(error.data));
});

DCheckoutOptions options = new DCheckoutOptions();
options.setEnvironment("production");
options.setLocale("en");
options.setSiteName("Movie Ticket);
options.setCustomerId("cus_Das2XXXXXXXXX");
options.setCustomerEmail("mario@supermario.net");
options.setCustomerGivenName("John Doe");
options.setOrderId("ord_HdmXXXXXXXXX");
options.setAccessToken("d59XXXXXXXXXXXX");
options.setCurrency("IDR");  
options.setAmount("25000");  
options.setPaymentType("full_payment");                  //optional
options.setLabel("home");                                //optional 
options.setCustomerAddressLine1("ramnagar, kayembedu");  //optional
options.setCustomerCity("chennai");                      //optional
options.setCustomerCountry("india");                     //optional
options.setCustomerRegion("asia");                       //optional
options.setCustomerPostalCode("523323");                 //optional
options.setReceiverName("dhanraj");                      //optional
options.setReceiverPhone("8999998999");                  //optional
options.setCustomerMobile("8939983823");                 //optional
options.setLandmark("avenue east");                      //optional
options.setDarkMode(true)                                //optional (Set to true to enable dark mode. This is available for Android 10 and above only. For Android 9 and below, using this field will not throw errors, but dark mode will not be enabled)

Durianpay.getInstance(this).checkout(checkoutOptions, this);

/* Sample response
{
    "type":"success",
    "response": {
        ...
        "payment_id":"pay_XXXXXXXX",
        "payment_metadata":{},
        "payment_method_used":"none",
        "order_id":"ord_XXXXXXX",
        "amount":"15000.00",
        "currency":"IDR",
        ...
    }
}
*/

@Override
public void onSuccess(DPaymentSuccess s) {
    Log.d("callbackSuccess", s.getResponse?.getPaymentId.toString());
    Toast.makeText(this, "Payment Success", Toast.LENGTH_SHORT).show();
}

@Override
public void onFailure(DPaymentFailed s) {
    Log.d("callbackFailure", s?.getResponse?.getPaymentId.toString());
    Toast.makeText(this, "Payment Failed", Toast.LENGTH_SHORT).show();
}

@Override
public void onClose(String s) {
    Toast.makeText(this, "Payment closed before completion", Toast.LENGTH_SHORT).show();
}

{  
  "event": "payment.completed",
  "data":{  
    "id": "pay_dAS123ad123Asd",
    "signature": "9e892f199d026d06a56669e658a56f264610431d24e8b4d07f7bd46f6d5062d2",
    "order_id": "ord_XXXXXXXXX",
    "amount": "10000",
    "currency": IDR,
    "paid_at": "2016-09-30T21:10:19.000Z",
    "created_at":"2016-09-30T21:09:56.000Z",
    "metadata": {
      "key": "value"
    },
}

// Function to generate the signature for verification of payment
//use appropriate key if it is a sandbox order please use dp_test key and if it is a live order then use dp_live key
func GenerateSignature(paymentID string, amount string, accessKey string) (generatedSignature string) {
  //message passed includes payment_id + “|” + amount. Amount is in “15000.00” format
  secretData := paymentID + "|" + amount
  // Create a new HMAC by defining the hash type and the key (as byte array)
  h := hmac.New(sha256.New, []byte(accessKey))
  // Write Data to it
  h.Write([]byte(secretData))
  // Get result and encode as hexadecimal string
  generatedSignature = hex.EncodeToString(h.Sum(nil))
  return
}