This technical manual is for integrating a payment component using multiple payment methods.

1. Add the HTML elements

Add the component's CSS to the <head> of your checkout page:

<link rel="stylesheet" href="https://testpay.multisafepay.com/sdk/components/v2/components.css">

Add the component's script to the bottom of the <body> of your checkout page:

<script src="https://testpay.multisafepay.com/sdk/components/v2/components.js"></script>

Add the DOM element for the component's UI in the <body> of your checkout page:
```
<div id="MultiSafepayPayment"></div>
```

Choose your payment button

Decide if you want to:

Generate a button with the component (see Step 2 below). Recommended.
Use an existing button, e.g. if your checkout already includes one.
Create your own button:
```
<button id="payment-button"></button>
```

2. Initialize the component

Generate an API token

Payment components require a MultiSafepay API token. See API reference – Generate an API token.

✅ Tip! To keep your API key private, request the token from your own server.

Construct the component object

Initialize an orderData object containing information about the customer's order collected during the checkout process:

const orderData = {
    currency: 'EUR',
    amount: 10000,
    customer: {
        locale: 'en',
        country: 'NL',
        reference: 's9Q8ikjFJBCX'
    },    
    payment_options: {
        settings: {
            connect: {
                group_cards: true
            }
        }
    },
    template : {
        settings: {
            embed_mode: true
        }
    }
};

Properties

Key	Required
amount	Yes
currency	Yes
customer.country	No
customer.locale	No
customer.reference	Yes, for recurring payments
payment_options.settings.connect.group_cards	No
recurring.model	Yes, for recurring payments
template.settings.embed_mode	No

How to process recurring payments

Recurring payments is a solution that lets you store a customer’s payment details as a secure, encrypted token.

Upon subsequent payments, customers can select their stored payment details and pay with a single click.

To process recurring payments in your payment component:

Add the cardOnFile recurring model
Provide the relevant customer.reference

const orderData = {
    currency: 'EUR',
    amount: 10000,
    customer: {
        locale: 'en',
        country: 'NL',
        reference: 'Customer123'
    },
    recurring: {
        model: 'cardOnFile'
    }
};

✅
Success
Your payment component now automatically renders a checkbox where customers can choose whether they would like to store their payment details for future visits.

Recurring payments are supported for all credit card payments.

📘 Note: For test credit card details, see Test payment details – Credit and debit cards.

To use recurring payments in your payment component, you need to enable recurring payments for your account. If you haven't already, email [email protected]

📘 Note: We use the orderData object to ensure the payment methods are enabled, e.g. for the currency, country, and order value.

Construct a PaymentComponent object in the test environment using the orderData object and your API token:
```
PaymentComponent = new MultiSafepay({
    env: 'test',
    apiToken: apiToken,
    order: orderData
});
```

Initialize the component

Initialize the component using:

Payment component button

PaymentComponent.init('dropin', {
    container : '#MultiSafepayPayment',
    onSelect : state => {
        console.log('onSelect', state);
    }, 
    onError : state => {
        console.log('onError', state);
    },
    onLoad : state => {
        console.log('onLoad', state);
    },
    onSubmit : state => {
        if(PaymentComponent.hasErrors()) {
            let errors = PaymentComponent.getErrors();
            console.log(errors);
            return;
        }

        // Send state.paymentData to your server (createOrder)
        // Create an order from your server
        // Return the response from your server to the client-side
        // With the response, redirect the customer or log an error

        createOrder(PaymentComponent.getPaymentData()).then(response => {
            console.log(response);
            if(response.success) {
                PaymentComponent.init('redirection', {
                    order: response.data
                });
            }
        });
    }
});

Own or existing button

PaymentComponent.init('dropin', {
    container : '#MultiSafepayPayment',
    onSelect : state => {
        console.log('onSelect', state);
    }, 
    onError : state => {
        console.log('onError', state);
    },
    onLoad : state => {
        console.log('onLoad', state);
    }
});

In the method call, create event handlers for the following events:

Events

Event	Event handler
`onError`	Occurs when there is an error in the payment component.
`onLoad`	Occurs when the payment component UI is rendered.
`onSelect`	Occurs when the customer selects an issuer with iDEAL.
`onSubmit`	Occurs when the customer clicks the payment button (when using the button generated by the component).
`onValidation`	Occurs when form validation changes. Can be used to disable the payment button until all fields are validated.

The PaymentComponent has the following methods:

Methods

Method	Description
`getErrors`	Returns error messages or codes.
`hasErrors`	Returns a boolean value about whether errors were registered.
`getOrderData`	Returns an object containing a `payment_data` object and the full order configuration.
`getPaymentData`	Returns a `payment_data` object with a `payload` containing the customer's payment details, used to create orders, and the `gateway`.

3. Create an order

Handle the interaction

✅ Tip! This step only applies if using your own or an existing payment button.

Assign the button element to a variable:

const paymentButton = document.querySelector('#payment-button');

Create an event handler for the payment button:
- When the customer clicks the payment button, call the component's getPaymentData() method.
- Send the response to your server and create an order.
- Return the reponse from your server to the client-side to redirect the customer.

Redirect the customer

The component's redirection handler redirects the customer to the relevant page:

If customer actions are required to complete the payment (e.g. by completing 3D Secure or iDEAL issuer authentication), the customer is redirected to the relevant page. If successful, the customer is then redirected to the redirect_url, i.e. the "success page".
If no customer action is required to complete the payment, the customer is redirected to the redirect_url, i.e. the "success page".
If the customer chooses to pay by bank transfer, the component displays the banking details needed for customers to complete payment.
If a QR code is available for customers to complete payment on their mobile device, the component displays the QR code.

Avoid duplicate orders

When using your own payment button, if the customer clicks it again before they are redirected, this can create duplicate orders.

To avoid duplicate orders, disable the button until you have attempted to create an order.

Then, check response.success:

If true, don't re-enable the button, and proceed with the redirect.

If false, re-enable the button for the customer to try again.

paymentButton.addEventListener('click', e => {
    paymentButton.addAttribute('disabled');
    if (PaymentComponent.hasErrors()) {
        let errors = PaymentComponent.getErrors();
        console.log(errors);
        return false;
    }
    createOrder(PaymentComponent.getPaymentData()).then(response => {
        if(!response || !response.success) {
            paymentButton.disabled = false;
            console.log(response);
        } else {
            PaymentComponent.init('redirection', {
                order: response.data
            });
        }
    });
});

Create an order

Create an order from your server, appending the payment_data collected from the payment component UI to the order data.

See API reference – Create order > Payment component.

4. Go live

To test the payment methods, see Testing payment methods - [(/docs/testing#test-payment-details).

When you're ready to process real payments, make the following changes:

In Step 1: Add the elements, replace the test JavaScript library with the live JavaScript library:

<script src="https://pay.multisafepay.com/sdk/components/v2/components.js"></script>

Next, replace the test CSS file with the live CSS file:

<link rel="stylesheet" href="https://pay.multisafepay.com/sdk/components/v2/components.css">

In Step 2: Construct the component object, change the environment from test to live:

PaymentComponent = new MultiSafepay({
    env: 'live',
    apiToken: apiToken,
    order: orderData
});

In Step 3: Create an order, change the test endpoint to the live endpoint:
```
https://api.multisafepay.com/v1/json/orders
```

💬
Support

Email [email protected]

Top of page

Multiple payment methods

1. Add the HTML elements

Choose your payment button

2. Initialize the component

Generate an API token

Construct the component object

✅
Success

Initialize the component

3. Create an order

Handle the interaction

Redirect the customer

Avoid duplicate orders

Create an order

4. Go live

💬
Support

1. Add the HTML elements

Choose your payment button

2. Initialize the component

Generate an API token

Construct the component object

✅Success

Initialize the component

3. Create an order

Handle the interaction

Redirect the customer

Avoid duplicate orders

Create an order

4. Go live

💬 Support

✅
Success

💬
Support