Accepting One-Click Payments

February 08, 2023

Save your customers' card details to receive One-click Payments

Web

iOS

Android

Kushki allows you to securely store a customer’s card details, without necessarily charging an initial fee, and then allow them to make One-Click Payments to speed up the checkout process.

How does it work?

Storing debit and credit card details on your website means capturing the card details, generating a token and sending the information to Kushki for storage, where a subscription identifier will be created for the card. Then, with that identifier, you will be able to make One-Click Charges from your back-end as required.

Basically, integrating One-Click Charges consists of 2 stages: Registration and charge

The flow that you will integrate is shown below:

Flujo pago con tarjeta on demand

1. Registration

The first thing you need to do to generate One-Click Charges is to register your customer’s card. To do so, follow the steps below:

Set up your front-end

The front-end is responsible for collecting the user’s card details securely, generating a token for such information through Kushki’s servers, and then sending that information to the back end to start the card registration process so that you can charge later.

Use Kushki.js to have more control over the “look & feel” or appearance of your card form.

Set up Kushki.js

Option 1 - CDN

Use the following script tag at the end of the <body> of your payment page.

<script src="https://cdn.kushkipagos.com/kushki.min.js"></script>

Option 2 - NPM

Install the package from npm.

npm install --save @kushki/js

Then import it in your code using the following code.

import { Kushki } from “@kushki/js”;

Set up `Kushki` object

Add the following code to your application

const kushki = new Kushki({
  merchantId: 'public-merchant-id', // Your public merchant id 
  inTestEnvironment: true,
});

Collect User Information and Send it to your Back-end

First, embed the form in your payment page adding the required fields. You can design it in the way that best suits you.

For example:

<form id="payment-form">
  <input placeholder="Card Number" type="text" name="number">
  <input placeholder="Full Name" type="text" name="name">  
  <input placeholder="MM" type="text" name="expiry_month">
  <input placeholder="YY" type="text" name="expiry_uear">
  <input placeholder="CVC" type="text" name="cvc">

  <button id="submit">Pay $49.99</button>
</form>

Display the deferred options according to the BIN of your customer’s card (Optional)

As soon as your customer’s card number is entered, you should check the method of deferred request to verify if there are deferred payment options for the BIN of the card entered by the user.

kushki.requestDeferred({
bin: "424242"
}, (response) => {
   if (!response.code) {
       console.log(response);
      } else {
       console.error('Error: ', response.error, 'Code: ', response.code, 'Message: ', response.message);
   }
});

In response to this call, you will receive the type type, the available months and the months of grace, as shown in the following example response. To execute the charge you should use only months.

  {
      type: "all",
      months: ["2", "3", "4", "5", "6", "7"],
      monthsOfGrace: []
    }

According to the response, the payment form shows the information of deferred options that your customer has available. Make sure to capture their choices, and send them in turn along with the payment details in the deferred object when you start the payment process with Kushki.

And, for the moment the user submits the form, add the token request and take it to your back-end.

kushki.requestSubscriptionToken({
  currency: "USD",
  card: {
    name: form.name,
    number: form.number,
    cvc: form.cvv,
    expiryMonth: form.expiry_month,
    expiryYear: form.expiry_year,
  },
}, (response) => {
  if(response.code){
    console.log(response);
    // Submit your code to your back-end
  } else {
    console.error('Error: ',response.error, 'Code: ', response.code, 'Message: ',response.message);
  }
});

Set up your back-end

The back-end is responsible for receiving the token obtained from your front-end and starting the card registration process with Kushki.

When the user submits the form, your front end sends a token to an endpoint that you specified previously. Using this token, you must make a call to our card registration endpoint to register the card.

Javascript
Python
PHP

const request = require("request");

const options = {
  method: 'POST',
  url: 'https://api-uat.kushkipagos.com/subscriptions/v1/card',
  headers: {'content-type': 'application/json'},
  body: {
    token: 'gV3ox6100000sAxClU033646vnnJsT83',
    planName: 'Gold',
    periodicity: 'custom',
    contactDetails: {
      "documentType": "CC",
      "documentNumber": "1009283738",
      "email": "test@test.com",
      "firstName": "Diego",
      "lastName": "Cadena",
      "phoneNumber": "+593988734644"
    },
    amount: {
      subtotalIva: 0, 
      subtotalIva0: 0, 
      ice: 0, 
      iva: 0, 
      currency: 'USD'
    },
    startDate: '2021-01-01',
  },
  json: true
};

request(options, (error, response, body) => {
  if (error) throw new Error(error);

  console.log(body);
});

import http.client

conn = http.client.HTTPSConnection("api-uat.kushkipagos.com")

payload = "{\"token\":\"gV3ox6100000sAxClU033646vnnJsT83\",\"planName\":\"Premium\",\"periodicity\":\"custom\",\"contactDetails\":{\"documentType\":\"CC\",\"documentNumber\":\"1009283738\",\"email\":\"pruebas@kushki.com\",\"firstName\":\"Diego\",\"lastName\":\"Cadena\",\"phoneNumber\":\"+593988734644\"},\"amount\":{\"subtotalIva\":0,\"subtotalIva0\":0,\"ice\":0,\"iva\":0,\"currency\":\"USD\"},\"startDate\":\"2018-09-25\",\"metadata\":{\"plan\":{\"fitness\":{\"cardio\":\"include\",\"rumba\":\"include\",\"pool\":\"include\"}}}}"

headers = { 'content-type': "application/json" }

conn.request("POST", "/subscriptions/v1/card", payload, headers)

res = conn.getresponse()
data = res.read()

print(data.decode("utf-8"))

# Insert your logic here ...

$client = new http\Client;
$request = new http\Client\Request;

$body = new http\Message\Body;
$body->append('{"token":"gV3ox6100000sAxClU033646vnnJsT83","planName":"Premium","periodicity":"custom","contactDetails":{"documentType": "CC", "documentNumber": "1009283738", "email": "test@test.com", "firstName": "Diego", "lastName": "Cadena", "phoneNumber": "+593988734644"},"amount":{"subtotalIva":0, "subtotalIva0":0, "ice":0, "iva":0, "currency":"USD"},"startDate":"2018-09-25","metadata":{"plan":{"fitness":{"cardio":"include","rumba":"include","pool":"include"}}}}');

$request->setRequestUrl('https://api-uat.kushkipagos.com/subscriptions/v1/card');
$request->setRequestMethod('POST');
$request->setBody($body);

$request->setHeaders(array(
  'content-type' => 'application/json'
));

$client->enqueue($request)->send();
$response = $client->getResponse();

echo $response->getBody();

// Insert your logic here...

According to the response you obtained, redirect the user to a success or failure page to inform the customer whether the registration was approved or declined.

2. Charge

Once you have already registered your customer’s card, in order to make a charge, it is necessary to perform these simple steps, using the subscriptionId.

Set up your front-end

We will take advantage of the fact that our Kushki.js library has been imported and set up previously to use a method that will be very helpful to verify the reliability of the charge.

Generate a charge token and send it to your back-end

First, it is necessary to obtain the subscription ID of the card that will be charged.

Then, request the charge token, and send it to your back-end.

kushki.requestDeviceToken({
  subscriptionId: "1543267242354000" // Replace with your subscription id
}, (response) => {
  if(response.code){
    console.log(response);
    // Submit your code to your back-end
  } else {
    console.error('Error: ',response.error, 'Code: ', response.code, 'Message: ',response.message);
  }
});

Set up your back-end

Once the charge token has been received, simply call our charge endpoint along with the subscriptionId as you deliver your service to your customer under the logic you define.

Javascript
Python
PHP

var request = require("request");

var options = {
  method: 'POST',
  url: 'https://api-uat.kushkipagos.com/subscriptions/v1/card/291929129192912', // Replace this with your subscription id
  headers: {'content-type': 'application/json'},
  body: {
  language: "es",
  token: "1cfaze100000qQ4dtN016410Ow7ot8nd",
  amount: {
    subtotalIva: 0,
    subtotalIva0: 50000,
    ice: 0,
    iva: 0,
    currency: "CLP"
  },
  deferred: {
    months: 6
  },
  metadata: {
  customerId: "123"
  },
  contactDetails: {
    documentType: "CC",
    documentNumber: "1009283738",
    email: "test@test.com",
    firstName: "Diego",
    lastName: "Cadena",
    phoneNumber: "+593988734644"
  },
  orderDetails: {
    siteDomain: "tuebook.com",
    shippingDetails: {
      name: "Diego Cadena",
      phone: "+593988734644",
      address: "Eloy Alfaro 139 y Catalina Aldaz",
      city: "Santiago de Chile",
      region: "Santiago",
      country: "Chile",
      zipCode: "170402"
    },
    billingDetails: {
      name: "Diego Cadena",
      phone: "+593988734644",
      address: "Eloy Alfaro 139 y Catalina Aldaz",
      city: "Santiago de Chile",
      region: "Santiago",
      country: "Chile",
      zipCode: "170402"
    }
  },
  productDetails: {
    product: [
      {
        id: "198952AB",
        title: "eBook Digital Services",
        price: 6990000,
        sku: "10101042",
        quantity: 1
      },
      {
        id: "198953AB",
        title: "eBook Virtual Selling",
        price: 9990000,
        sku: "004834GQ",
        quantity: 1
      }
    ]
  },
  fullResponse: true
},
  json: true
};

request(options, (error, response, body) => {
  if (error) throw new Error(error);

  console.log(body);
});

import requests

url = "https://api-uat.kushkipagos.com/subscriptions/v1/card/291929129192912"

payload = "{\"language\":\"es\",\"token\":\"1cfaze100000qQ4dtN016410Ow7ot8nd\",\"amount\":{\"subtotalIva\":0,\"subtotalIva0\":50000,\"ice\":0,\"iva\":0,\"currency\":\"CLP\"},\"deferred\":{\"months\":6},\"metadata\":{\"customerId\":\"123\"},\"contactDetails\":{\"documentType\":\"CC\",\"documentNumber\":\"1009283738\",\"email\":\"test@test.com\",\"firstName\":\"Diego\",\"lastName\":\"Cadena\",\"phoneNumber\":\"+593988734644\"},\"orderDetails\":{\"siteDomain\":\"tuebook.com\",\"shippingDetails\":{\"name\":\"Diego Cadena\",\"phone\":\"+593988734644\",\"address\":\"Eloy Alfaro 139 y Catalina Aldaz\",\"city\":\"Santiago de Chile\",\"region\":\"Santiago\",\"country\":\"Chile\",\"zipCode\":\"170402\"},\"billingDetails\":{\"name\":\"Diego Cadena\",\"phone\":\"+593988734644\",\"address\":\"Eloy Alfaro 139 y Catalina Aldaz\",\"city\":\"Santiago de Chile\",\"region\":\"Santiago\",\"country\":\"Chile\",\"zipCode\":\"170402\"}},\"productDetails\":{\"product\":[{\"id\":\"198952AB\",\"title\":\"eBook Digital Services\",\"price\":6990000,\"sku\":\"10101042\",\"quantity\":1},{\"id\":\"198953AB\",\"title\":\"eBook Virtual Selling\",\"price\":9990000,\"sku\":\"004834GQ\",\"quantity\":1}]}}"

headers = { 'content-type': "application/json" }

response = requests.request("POST", url, data=payload, headers=headers)

print(response.text)

# Your logic here ...

$client = new http\Client;
$request = new http\Client\Request;

$body = new http\Message\Body;
$body->append('{\"language\":\"es\",\"token\":\"1cfaze100000qQ4dtN016410Ow7ot8nd\",\"amount\":{\"subtotalIva\":0,\"subtotalIva0\":50000,\"ice\":0,\"iva\":0,\"currency\":\"CLP\"},\"deferred\":{\"months\":6},\"metadata\":{\"customerId\":\"123\"},\"contactDetails\":{\"documentType\":\"CC\",\"documentNumber\":\"1009283738\",\"email\":\"test@test.com\",\"firstName\":\"Diego\",\"lastName\":\"Cadena\",\"phoneNumber\":\"+593988734644\"},\"orderDetails\":{\"siteDomain\":\"tuebook.com\",\"shippingDetails\":{\"name\":\"Diego Cadena\",\"phone\":\"+593988734644\",\"address\":\"Eloy Alfaro 139 y Catalina Aldaz\",\"city\":\"Santiago de Chile\",\"region\":\"Santiago\",\"country\":\"Chile\",\"zipCode\":\"170402\"},\"billingDetails\":{\"name\":\"Diego Cadena\",\"phone\":\"+593988734644\",\"address\":\"Eloy Alfaro 139 y Catalina Aldaz\",\"city\":\"Santiago de Chile\",\"region\":\"Santiago\",\"country\":\"Chile\",\"zipCode\":\"170402\"}},\"productDetails\":{\"product\":[{\"id\":\"198952AB\",\"title\":\"eBook Digital Services\",\"price\":6990000,\"sku\":\"10101042\",\"quantity\":1},{\"id\":\"198953AB\",\"title\":\"eBook Virtual Selling\",\"price\":9990000,\"sku\":\"004834GQ\",\"quantity\":1}]}}');

$request->setRequestUrl('https://api-uat.kushkipagos.com/subscriptions/v1/card/291929129192912');
$request->setRequestMethod('POST');
$request->setBody($body);

$request->setHeaders(array(
  'content-type' => 'application/json'
));

$client->enqueue($request)->send();
$response = $client->getResponse();

echo $response->getBody();

// Your logic here ...

Cancel a registration (Optional)

If your customer decides to cancel the service or once you stop providing it, in order to cancel the card inscription, simply call our inscription cancellation endpoint from your back-end.

Javascript
Python
PHP

const request = require("request");

request({
  method: 'DELETE',
  url: 'https://api-uat.kushkipagos.com/subscriptions/v1/card/213123123123',
  headers: {'content-type': 'application/json'}
}, (error, response, body) => {
  if (error) throw new Error(error);

  console.log(body);
  // Insert your logic here...
});

import http.client

conn = http.client.HTTPSConnection("api-uat.kushkipagos.com")

headers = { 'content-type': "application/json" }

conn.request("DELETE", "/subscriptions/v1/card/213123123123", headers=headers)

res = conn.getresponse()
data = res.read()

print(data.decode("utf-8"))

# Insert your logic here ...

$client = new http\Client;
$request = new http\Client\Request;

$request->setRequestUrl('https://api-uat.kushkipagos.com/subscriptions/v1/card/213123123123');
$request->setRequestMethod('DELETE');
$request->setHeaders(array(
  'content-type' => 'application/json'
));

$client->enqueue($request)->send();
$response = $client->getResponse();

echo $response->getBody();
// Insert your logic here ...

3. Test your Integration

You can use some test cards in test mode to ensure that your integration is ready. Use them with any CVV and a future expiration date.

Approved transaction: 5451951574925480
Transaction declined during token request (front end): 4574441215190335
Transaction declined during charge request (back end): 4349003000047015

4. Prepare your Certification

Read the following guidelines for technical certification approval (required to obtain productive account credentials):

Tax calculations must be correct.
Sensitive card details are not stored in your database (full card number, CVV, etc.).
Messages displayed on the screen are in line with Kushki’s responses.
All Kushki responses must be saved and recorded (required in case you need support).
Kushki’s logo must be visible to the customer. You can find our logo in several formats here.
Make sure to send all the required data as specified in the API Reference.

If you are using Kushki.js, also check the following:

The cardholder’s name must be required.
The card number field must be required.
The card number field must only accept numbers.
The credit card field must allow a maximum of 16 digits (there may be less).
The CVV field must be required.
The CVV field must accept only numbers.
The CVV field must allow no more than 4 digits and no less than 3 digits.
The CVV field must be of password type.
The expiration date must be required.
The expiration date must accept only future dates.
The payment button must be disabled after the first click.
Kushki’s logo must be visible to the customer. You can find our logo in several formats here.
Make sure to send the contact details of your customer-payer (contactDetails), together with the billing details (orderDetails -> billingDetails) and shipping details (if your business model requires it: orderDetails -> shippingDetails), within the request to make the charge. The example of the Body of JSON for the charge can be found at API Reference.

Accept Webhooks

Manage correctly post-payment events.

How does it work?

1. Registration

Set up your front-end

Set up Kushki.js

Option 1 - CDN

Option 2 - NPM

Set up Kushki object

Collect User Information and Send it to your Back-end

Display the deferred options according to the BIN of your customer’s card (Optional)

Set up your back-end

2. Charge

Set up your front-end

Generate a charge token and send it to your back-end

Set up your back-end

Cancel a registration (Optional)

3. Test your Integration

4. Prepare your Certification

Accept Webhooks

Set up `Kushki` object