Customization

Customize your Web unified checkout

You can customize the Unified Checkout to support your checkout context and brand guidelines by using Layouts and Styling APIs

1. Layouts

Choose a layout that fits well with your UI pattern. There are two types of layout options as listed below. The layout defaults to accordion if not explicitly specified.

1.1 Accordion layout

The accordion layout displays payment methods vertically using an accordion. To use this layout, set the value for layout to accordion. You also have the option to specify other properties, such as those shown in the following example.

var paymentElementOptions = {
 layout: {
   type: 'accordion',
   defaultCollapsed: false,
   radios: true,
   spacedAccordionItems: false
 },
}

—------or—---------


var paymentElementOptions = {
 layout: 'accordion'
}

<PaymentElement id="payment-element" options={paymentElementOptions} />

1.2 Tabs layout

The tabs layout displays payment methods horizontally using tabs. To use this layout, set the value for layout to tabs. You also have the option to specify other properties, such as tabs or collapsed.

var paymentElementOptions = {
 layout: 'tabs'
}

<PaymentElement id="payment-element" options={paymentElementOptions} />

2. Wallets

The wallet customization feature lets users configure payment options like Apple Pay, Google Pay, PayPal, and Klarna. It includes a walletReturnUrl for post-payment redirects and a style property to customize the wallet's appearance, offering flexibility for seamless integration.

var paymentElementOptions = {
    wallets: {
      walletReturnUrl: `${window.location.origin}`,
      applePay: "auto",
      googlePay: "auto",
      payPal: "auto",
      klarna: "never",
      style: {
        theme: "dark",
        type: "default",
        height: 55,
        buttonRadius: 4,
      },
    },
  }
  
<PaymentElement id="payment-element" options={paymentElementOptions} />

Variable	Description	Values
walletReturnUrl: string	Defines the URL to redirect users to after completing a payment.	This will take a URL string as its value
applePay: showType googlePay: showType payPay: showType klarna: showType	Determines the visibility of Apple Pay, Google Pay, Paypal and Klarna.	`showType` can take two values: 1. `"auto"`: Display when supported. 2.`"never"`: Always hidden
style: { theme: theme, type: styleType, height: int, buttonRadius: int, }	Configures the wallet's appearance with the following options: 1. `theme`: Sets the theme. 2.`type`: Defines the style type (e.g. buy). 3. `height`: Specifies the height of the wallet. 4.`buttonRadius`: Adjusts the button corner radius.	`theme`: It can take values as `dark`, `light`, or `outline`. `type`: Specifies the wallet button style with options including `checkout`, `pay`, `buy`, `installment`, `default`, `book`, `donate`, `order`, `addmoney`, `topup`, `rent`, `subscribe`, `reload`, `support`, `tip`, and `contribute`.

3. Styling variables

The Styling APIs could be used to blend the Unified Checkout with the rest of your app or website.

Variable	Description
fontFamily	The font family is used throughout Widgets. Widget supports css fonts and custom fonts by passing the fonts option; reference to elements consumer
fontSizeBase	The font size that's set on the root of the Widget. By default, other font size variables like fontSizeXs or fontSizeSm are scaled from this value using rem units
spacingUnit	The base spacing unit that all other spacing is derived from. Increase or decrease this value to make your layout more or less spacious
borderRadius	The border radius used for tabs, inputs, and other components in the Widget
colorPrimary	A primary color used throughout the Widget. Set this to your primary brand color
colorBackground	The color used for the background of inputs, tabs, and other components in the Widget
colorText	The default text color used in the Widget
colorDanger	A color used to indicate errors or destructive actions in the Widget
fontVariantLigatures	The font-variant-ligatures setting of text in the Widget
fontVariationSettings	The font-variation-settings setting of text in the Widget
fontWeightLight	The font weight used for light text
fontWeightNormal	The font weight used for normal text
fontWeightMedium	The font weight used for medium text
fontWeightBold	The font weight used for bold text
fontLineHeight	The line-height setting of text in the Widget
fontSizeXl	The font size of extra-large text in the Widget. By default this is scaled from var(--fontSizeBase) using rem units
fontSizeLg	The font size of large text in the Widget. By default this is scaled from var(--fontSizeBase) using rem units
fontSizeSm	The font size of small text in the Widget. By default this is scaled from var(--fontSizeBase) using rem units
fontSizeXs	The font size of extra-small text in the Widget. By default this is scaled from var(--fontSizeBase) using rem units
fontSize2Xs	The font size of double-extra small text in the Widget. By default this is scaled from var(--fontSizeBase) using rem units
fontSize3Xs	The font size of triple-extra small text in the Widget. By default this is scaled from var(--fontSizeBase) using rem units
colorSuccess	A color used to indicate positive actions or successful results in the Element
colorWarning	A color used to indicate potentially destructive actions in the Element
colorPrimaryText	The color of text appearing on top of any a var(--colorPrimary) background
colorBackgroundText	The color of text appearing on top of any a var(--colorBackground) background
colorSuccessText	The color of text appearing on top of any a var(--colorSuccess) background
colorDangerText	The color of text appearing on top of any a var(--colorDanger) background
colorWarningText	The color of text appearing on top of any a var(--colorWarning) background
colorTextSecondary	The color used for text of secondary importance. For example, this color is used for the label of a tab that isn’t currently selected
colorTextPlaceholder	The color used for input placeholder text in the Widget

4. Rules

The rules option is a map of CSS-like selectors to CSS properties, allowing granular customization of individual components. After defining your theme and variables, use rules to seamlessly integrate Elements to match the design of your site. The selector for a rule can target any of the public class names in the Element, as well as the supported states, pseudo-classes, and pseudo-elements for each class. For example, the following are valid selectors:

.Tab, .Label, .Input
.Tab:focus
.Input--invalid, .Label--invalid
.Input::placeholder
.billing-section, .billing-details-text

Each class name used in a selector supports an allowlist of CSS properties that you specify using camel case (for example, boxShadow for the box-shadow property). The following is the complete list of supported class names and corresponding states, pseudo-classes, and pseudo-elements.

Tabs

Class Name	States	Pseudo-Classes
.Tabs	--selected	:hover, :focus, :active, :disabled
fontSizeBase	--selected	:hover, :focus, :active, :disabled
spacingUnit	--selected	:hover, :focus, :active, :disabled

.Tab, .Label, .Input
.Tab:focus
.Input--invalid, .Label--invalid
.Input::placeholder

const appearance = {
  variables: {
    buttonBackgroundColor: "#FFFFFF",
    buttonTextColor: "#000000",
    // ... along with other variables
  },
  rules: {
    ".TabLabel": {
      overflowWrap: "break-word",
    },
    ".Tab--selected": {
      display: "flex",
      gap: "8px",
      flexDirection: "row",
      justifyContent: "center",
      alignItems: "center",
      padding: "15px 32px",
      background: "linear-gradient(109deg,#f48836,#f4364c)",
      color: "#ffffff",
      fontWeight: "700",
      borderRadius: "25px",
    },
    ".Tab--selected:hover": {
      display: "flex",
      gap: "8px",
      flexDirection: "row",
      justifyContent: "center",
      alignItems: "center",
      padding: "15px 32px",
      background: "linear-gradient(109deg,#f48836,#f4364c)",
      borderRadius: "25px",
      color: "#ffffff !important",
      fontWeight: "700",
    },
  },
};

const elements = hyper.elements({ clientSecret, appearance });

Form Inputs

Class Name	States	Pseudo-Classes	Pseudo-Elements
.Label	--empty, --invalid
.Input	--empty, --invalid	:hover, :focus, :disabled, :autofill	::placeholder, ::selection
.Error

Checkbox

Class Name	States	Pseudo-Classes
.Checkbox	--checked	:hover
.CheckboxLabel	--checked	:hover
.CheckboxInput	--checked	:hover

5. Languages

Doo Payment Unified Checkout supports localization in 6 languages. By default, the Unified Checkout SDK will detect the locale of the customer’s browser and display the localized version of the payment sheet if that locale is supported. In case it is not supported, we default to English. To override, you can send locale in hyper.elements (options)

We support the following locales -

Arabic (ar)
Catalan (ca)
Chinese (zh)
Deutsch (de)
Dutch (nl)
English (en)
EnglishGB (en-GB)
FrenchBelgium (fr-BE)
French (fr)
Hebrew (he)
Italian (it)
Japanese (ja)
Polish (pl)
Portuguese (pt)
Russian (ru)
Spanish (es)
Swedish (sv)

If you need support for locales other than the ones mentioned above, please contact the Doo Payment team. Now you can test the payments on your app and go-live!

6. Confirm Button

The Styling APIs could be used to blend the Confirm Payment Button (handled by SDK) with your app.

Variable	Description
buttonBackgroundColor	Sets the background color of the payment button
buttonHeight	Define the height of the payment button
buttonWidth	Specify the width of the payment button
buttonBorderRadius	Adjust the border radius of the payment button for rounded corners
buttonBorderColor	Sets the color of the border surrounding the payment button
buttonTextColor	Define the color of the text displayed on the payment button
buttonTextFontSize	Customize the font size of the text on the payment button
buttonTextFontWeight	Specify the font weight of the text on the payment button
buttonBorderWidth	Specify the border width of the button

7. More Configurations

Branding

You can decide whether to display the Doo Payment branding using the branding prop

var paymentElementOptions = {
 ...,
 branding: "never", // choose between "never" and "always"
}

<PaymentElement id="payment-element" options={paymentElementOptions} />

Payment Methods Header Text

Customize the header text for the section displaying available payment methods.

var paymentElementOptions = {
 ...,
 paymentMethodsHeaderText: "Select Payment Method",
}

<PaymentElement id="payment-element" options={paymentElementOptions} />

Saved Payment Methods Header Text

Customize the header text for the section displaying saved payment methods.

var paymentElementOptions = {
 ...,
 savedPaymentMethodsHeaderText: "Saved Payment Methods",
}

<PaymentElement id="payment-element" options={paymentElementOptions} />

Custom Message for Card Terms

We provide a default message for card terms i.e.

`By providing your card information, you allow ${company_name} to charge your card for future payments in accordance with their terms.`

If you would like to customize this message, you can do so by using the customMessageForCardTerms property in the paymentElementOptions object.

var paymentElementOptions = {
 ...,
 customMessageForCardTerms: "Custom message for Card terms",
}

<PaymentElement id="payment-element" options={paymentElementOptions} />

Hide Card Nickname Field

The hideCardNicknameField property allows you to hide the card nickname field when saving a card.

var paymentElementOptions = {
  ...,
  hideCardNicknameField: true,  // default - false
};

<PaymentElement id="payment-element" options={paymentElementOptions} />;

Hide Expired Saved Payment Methods

The hideExpiredPaymentMethods property allows you to control whether expired saved payment methods are hidden or not.

var paymentElementOptions = {
  ...,
  hideExpiredPaymentMethods: false, // default - false
};

<PaymentElement id="payment-element" options={paymentElementOptions} />;

Show Card Form by Default

The showCardFormByDefault property determines whether the card form is displayed by default or not.

var paymentElementOptions = {
  ...,
  showCardFormByDefault: true,
};

<PaymentElement id="payment-element" options={paymentElementOptions} />;

Terms

The terms property allows you to configure the display of terms for various payment methods.

var paymentElementOptions = {
  ...,
  terms: {
    auBecsDebit: "always",
    bancontact: "auto",
    card: "never",
    ideal: "auto",
    sepaDebit: "always",
    sofort: "never",
    usBankAccount: "auto",
  },
};

<PaymentElement id="payment-element" options={paymentElementOptions} />;

Display Saved Payment Methods

The displaySavedPaymentMethods property determines whether saved payment methods are displayed.

var paymentElementOptions = {
  ...,
  displaySavedPaymentMethods: false,
};

<PaymentElement id="payment-element" options={paymentElementOptions} />;

Display Saved Payment Methods Checkbox

The displaySavedPaymentMethodsCheckbox property determines whether the "Save payment methods" checkbox is displayed.

var paymentElementOptions = {
  ...,
  displaySavedPaymentMethodsCheckbox: false, 
};

<PaymentElement id="payment-element" options={paymentElementOptions} />;

Payment Method Order

The paymentMethodOrder property allows you to specify the order in which payment methods are displayed.

var paymentElementOptions = {
  ...,
  paymentMethodOrder: ["card", "ideal", "sepaDebit", "sofort"],
};

<PaymentElement id="payment-element" options={paymentElementOptions} />;

Business

The business property allows you to specify a business name to be attached to the terms. By default merchant name will be taken as business name.

var paymentElementOptions = {
  ...,
  business: {
    name: "Example Business",
  },
};

<PaymentElement id="payment-element" options={paymentElementOptions} />;

Read Only

The readOnly property puts the SDK into read-only mode, disabling all interactions.

var paymentElementOptions = {
  ...,
  readOnly: true,
};

<PaymentElement id="payment-element" options={paymentElementOptions} />;

Custom Surcharge Message

The customSurchargeMessage property allows merchants to display a custom message when a surcharge is applied, instead of the default message provided by the SDK.

To include the surcharge amount and currency dynamically, merchants must use the {{amountAndCurrency}} placeholder within their message.

var paymentElementOptions = {
  ...,
  customSurchargeMessage: "A surcharge of {{amountAndCurrency}} applies to this transaction."
};

<PaymentElement id="payment-element" options={paymentElementOptions} />;

caution

Locale or language support for the message should be handled as needed.

1. Layouts​

1.1 Accordion layout​

1.2 Tabs layout​

2. Wallets​

3. Styling variables​

4. Rules​

Tabs​

Form Inputs​

Checkbox​

5. Languages​

6. Confirm Button​

7. More Configurations​

Branding​

Payment Methods Header Text​

Saved Payment Methods Header Text​

Custom Message for Card Terms​

Hide Card Nickname Field​

Hide Expired Saved Payment Methods​

Show Card Form by Default​

Terms​

Display Saved Payment Methods​

Display Saved Payment Methods Checkbox​

Payment Method Order​

Business​

Read Only​

Custom Surcharge Message​