Last Updated: 15 May 2024 | Change Log

Create a session to pay with a card

Use our React Native SDK to secure your customer's card details by creating a session.

Full Sample Integration

You can see an example of the session generation here.

Set your views

When you create your checkout form, you must set the views that your customers use to enter and submit their card details.

Here's an example of how you would set your view configurations.

  1. JavaScript
  2. TypeScript
import React, {useState} from 'react';
import {Button, TextInput, View} from 'react-native';

export default function CardFlow() {
  const [pan, setPan] = useState ('');
  const [expiryDate, setExpiryDate] = useState ('');
  const [cvc, setCvc] = useState ('');

  function createSession() {
  ...
  }

  return (
    <View>
      <TextInput
        keyboardType="numeric"
        placeholder="Card Number"
        onChangeText={setPan}
      />
      <TextInput
        keyboardType="numeric"
        placeholder="MM/YY"
        onChangeText={setExpiryDate}
      />
      <TextInput
        keyboardType="numeric"
        placeholder="CVC"
        onChangeText={setCvc}
      />
      <Button
        onPress={createSession}
      />
    </View>
  );
}

Validate card details

You can optionally validate your customer's card details. You can find instructions here.

Create a session

Initialize the AccessCheckout client

You must now initialize the AccessCheckout.

To do this, you must provide your baseUrl and merchantId (checkout ID).

Here's an example of how to initialize it.

import {
  AccessCheckout,
} from '@worldpay/access-worldpay-checkout-react-native-sdk';

const accessCheckout = new AccessCheckout({
  baseUrl: 'https://try.access.worldpay.com/',
  merchantId: 'YOUR_CHECKOUT_ID',
});

Parameters

ParameterDescription
baseUrl
  • For testing use: https://try.access.worldpay.com/
  • For live use: https://access.worldpay.com/
merchantIdYour unique checkout ID.

Generate CARD session

You must pass the customer's card details and the CARD session type to the generateSessions method of the AccessCheckout instance.

Here's an example of what you should do when your customer submits their card details.

  1. JavaScript
  2. TypeScript
import {
  ...
  CARD,
} from '@worldpay/access-worldpay-checkout-react-native-sdk';

...

function createSession() {
  const sessionTypes = [CARD];
  const cardDetails = {
    pan,
    expiryDate,
    cvc,
  };

  accessCheckout.generateSessions(cardDetails, sessionTypes)
    .then((sessions) => {
      const cardSession = sessions.card;
      // do something with the card session ...
    })
    .catch((error) => {
      // do something in case of error
    });
}

Full code sample

Here's the full code sample of the steps above.

  1. JavaScript
  2. TypeScript
import React, { useState } from 'react';
import { Button, TextInput, View } from 'react-native';
import {
  AccessCheckout,
  CARD,
} from '@worldpay/access-worldpay-checkout-react-native-sdk';

export default function CardFlow() {
  const [pan, setPan] = useState('');
  const [expiryDate, setExpiryDate] = useState('');
  const [cvc, setCvc] = useState('');

  const accessCheckout = new AccessCheckout({
    baseUrl: 'https://try.access.worldpay.com/',
    merchantId: 'YOUR_CHECKOUT_ID',
  });

  function createSession() {
    const sessionTypes = [CARD];
    const cardDetails = {
      pan,
      expiryDate,
      cvc,
    };

    accessCheckout.generateSessions(cardDetails, sessionTypes)
      .then((sessions) => {
        const cardSession = sessions.card;
        // do something with the card session ...
      })
      .catch((error) => {
        // do something in case of error
      });
  }

  return (
    <View>
      <TextInput
        keyboardType="numeric"
        placeholder="Card Number"
        onChangeText={setPan}
      />
      <TextInput
        keyboardType="numeric"
        placeholder="MM/YY"
        onChangeText={setExpiryDate}
      />
      <TextInput
        keyboardType="numeric"
        placeholder="CVC"
        onChangeText={setCvc}
      />
      <Button
        title="submit"
        onPress={createSession}
      />
    </View>
  );
}
Caution

Do not validate the structure or length of the session resources. We follow HATEOS standard to allow us the flexibility to extend our APIs with non-breaking changes.

Important

The CARD session has a lifespan of one minute and you can use it only once. If you do not create a token within that time, you must create a new CARD session value.

Next steps


Using the Payments API

Using our Modular APIs