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Each function of this interface is optional, giving you the flexibility to listen only to the events that are relevant to your application."]},{"$$mdtype":"Tag","name":"Tabs","attributes":{"size":"medium"},"children":[{"$$mdtype":"Tag","name":"div","attributes":{"label":"JavaScript","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"file":"./code/validation/card/implement-card-validation-event-listener.js","language":"json","header":{"controls":{"copy":{}}},"lang":"json","source":"const validationEventListener = {\n  onCardBrandChanged(brand) {\n    // TODO: handle the card brand change\n    // brand is an object properties name and images\n    // name contains the name of one of the brands supported and detected by the SDK\n    // images is an array of objects where each object has a type (image/png or image/svg+xml) and a url property\n    // brand will be undefined in the case where the PAN changes from a detected to an undetected card brand\n  },\n\n  onPanValidChanged(isValid) {\n    // TODO: handle the pan validation result\n  },\n\n  onExpiryDateValidChanged(isValid) {\n    // TODO: handle the expiry date validation result\n  },\n\n  onCvcValidChanged(isValid) {\n    // TODO: handle the cvc validation result\n  },\n\n  onValidationSuccess() {\n    // TODO: handle the form when the validation is complete i.e. all fields are valid\n  },\n};\n"},"children":[]}]},{"$$mdtype":"Tag","name":"div","attributes":{"label":"TypeScript","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"file":"./code/validation/card/implement-card-validation-event-listener.ts","language":"json","header":{"controls":{"copy":{}}},"lang":"json","source":"import {\n  ...\n  Brand,\n  CardValidationEventListener,\n} from '@worldpay/access-worldpay-checkout-react-native-sdk';\n\nconst validationEventListener: CardValidationEventListener = {\n  onCardBrandChanged(brand?: Brand): void {\n    // TODO: handle the card brand change\n    // brand is an object properties name and images\n    // name contains the name of one of the brands supported and detected by the SDK\n    // images is an array of objects where each object has a type (image/png or image/svg+xml) and a url property\n    // brand will be undefined in the case where the PAN changes from a detected to an undetected card brand\n  },\n\n  onPanValidChanged(isValid: boolean): void {\n    // TODO: handle the pan validation result\n  },\n\n  onExpiryDateValidChanged(isValid: boolean): void {\n    // TODO: handle the expiry date validation result\n  },\n\n  onCvcValidChanged(isValid: boolean): void {\n    // TODO: handle the cvc validation result\n  },\n\n  onValidationSuccess(): void {\n    // TODO: handle the form when the validation is complete i.e. all fields are valid\n  },\n};\n"},"children":[]}]}]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":3,"id":"functions","__idx":5},"children":["Functions"]},{"$$mdtype":"Tag","name":"div","attributes":{"className":"md-table-wrapper"},"children":[{"$$mdtype":"Tag","name":"table","attributes":{"className":"md"},"children":[{"$$mdtype":"Tag","name":"thead","attributes":{},"children":[{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"th","attributes":{"data-label":"Function"},"children":["Function"]},{"$$mdtype":"Tag","name":"th","attributes":{"data-label":"Description"},"children":["Description"]}]}]},{"$$mdtype":"Tag","name":"tbody","attributes":{},"children":[{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"code","attributes":{},"children":["onCardBrandChanged"]}]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":["This function is called with a card brand based on the details that your customer is entering. 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Don't forget to ensure that your UI components for PAN, Expiry Date and CVC are available in the DOM before doing so."]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["Validation initialization is an asynchronous process so make sure to handle the promise returned by the function."]},{"$$mdtype":"Tag","name":"Tabs","attributes":{"size":"medium"},"children":[{"$$mdtype":"Tag","name":"div","attributes":{"label":"JavaScript","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"file":"./code/validation/card/initialize-validation.js","language":"json","header":{"controls":{"copy":{}}},"lang":"json","source":"import React from 'react';\nimport {View} from 'react-native';\n// ...\n\nexport default function CardFlow() {\n  // ...\n\n  const onLayout = () => {\n    initialiseValidation()\n      .then(() => {\n        // You may want to optionally perform some actions once validation has been successfully initialized.\n      })\n      .catch(e => {\n        // do something in case of error\n      });\n  };\n\n  return (\n    <View onLayout={onLayout}>\n      ...\n    </View>\n  );\n}\n"},"children":[]}]},{"$$mdtype":"Tag","name":"div","attributes":{"label":"TypeScript","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"file":"./code/validation/card/initialize-validation.js","language":"json","header":{"controls":{"copy":{}}},"lang":"json","source":"import React from 'react';\nimport {View} from 'react-native';\n// ...\n\nexport default function CardFlow() {\n  // ...\n\n  const onLayout = () => {\n    initialiseValidation()\n      .then(() => {\n        // You may want to optionally perform some actions once validation has been successfully initialized.\n      })\n      .catch(e => {\n        // do something in case of error\n      });\n  };\n\n  return (\n    <View onLayout={onLayout}>\n      ...\n    </View>\n  );\n}\n"},"children":[]}]}]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":3,"id":"card-validation-rules","__idx":8},"children":["Card validation rules"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["The validation logic in the SDK, is based off a set of default rules for any card type. 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This means that if you do not support"," ","a certain card brand the SDK notifies your code of an invalid PAN if an unsupported brand is recognized."]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["By default, the SDK allows cards from any brand. If you do not wish to restrict the card brands that you accept then you"," ","do not need to pass any configuration."]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":4,"id":"example-configuration","__idx":12},"children":["Example configuration"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["To restrict the card brands that you accept, simply pass in an array of the brands that you ",{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["do"]}," wish to accept when"," ","initializing the SDK."]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["The following validation configuration restricts the SDK to accept only American Express, Visa or Mastercard BIN ranges."]},{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"file":"./code/validation/card/card-brand-restriction.js","language":"json","header":{"controls":{"copy":{}}},"lang":"json","source":"const {initialiseValidation, ...} = useAccessCheckout({\n  ...\n  config: useCardConfig({\n    ...,\n    validationConfig: {\n      validationListener: validationEventListener,\n      acceptedCardBrands: ['visa', 'mastercard', 'amex'],\n    }\n  }),\n});\n"},"children":[]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":4,"id":"currently-supported-card-brands","__idx":13},"children":["Currently supported card brands"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["The SDK is able to recognize the following card brands:"]},{"$$mdtype":"Tag","name":"div","attributes":{"className":"md-table-wrapper"},"children":[{"$$mdtype":"Tag","name":"table","attributes":{"className":"md"},"children":[{"$$mdtype":"Tag","name":"thead","attributes":{},"children":[{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"th","attributes":{"data-label":"Brand"},"children":["Brand"]},{"$$mdtype":"Tag","name":"th","attributes":{"data-label":"Code"},"children":["Code"]}]}]},{"$$mdtype":"Tag","name":"tbody","attributes":{},"children":[{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":["American Express"]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"code","attributes":{},"children":["\"amex\""]}]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":["Diners"]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"code","attributes":{},"children":["\"diners\""]}]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":["Discover"]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"code","attributes":{},"children":["\"discover\""]}]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":["JCB"]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"code","attributes":{},"children":["\"jcb\""]}]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":["Maestro"]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"code","attributes":{},"children":["\"maestro\""]}]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":["Mastercard"]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"code","attributes":{},"children":["\"mastercard\""]}]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":["Visa"]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"code","attributes":{},"children":["\"visa\""]}]}]}]}]}]},{"$$mdtype":"Tag","name":"Admonition","attributes":{"type":"info","name":"Note"},"children":[{"$$mdtype":"Tag","name":"p","attributes":{},"children":["If the SDK does not recognize a PAN as one of the above brands, it will be permitted as long as it meets the usual"," ","criteria for a valid PAN."]}]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":3,"id":"pan-formatting","__idx":14},"children":["PAN formatting"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["The SDK allows PAN formatting as the customer types. This feature is disabled by default."]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["The PAN is formatted in the following way:"]},{"$$mdtype":"Tag","name":"div","attributes":{"className":"md-table-wrapper"},"children":[{"$$mdtype":"Tag","name":"table","attributes":{"className":"md"},"children":[{"$$mdtype":"Tag","name":"thead","attributes":{},"children":[{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"th","attributes":{"data-label":"Card type"},"children":["Card type"]},{"$$mdtype":"Tag","name":"th","attributes":{"data-label":"Formatting"},"children":["Formatting"]}]}]},{"$$mdtype":"Tag","name":"tbody","attributes":{},"children":[{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":["Visa, Mastercard, JCB, Discover, Diners, Maestro"]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":["XXXX XXXX XXXX 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onCardBrandChanged(brand?: Brand): void {\n      // TODO: handle the card brand change\n      // brand is an object properties name and images\n      // name contains the name of one of the brands supported and detected by the SDK\n      // images is an array of objects where each object has a type (image/png or image/svg+xml) and a url property\n      // brand will be undefined in the case where the PAN changes from a detected to an undetected card brand\n    },\n      onPanValidChanged(isValid: boolean): void {\n      // TODO: handle the cvc validation result\n    },\n      onExpiryDateValidChanged(isValid: boolean): void {\n      // TODO: handle the cvc validation result\n    },\n      onCvcValidChanged(isValid: boolean): void {\n      // TODO: handle the cvc validation result\n    },\n      onValidationSuccess(): void {\n      // TODO: handle the form when the validation is complete i.e. all fields are valid\n    },\n  };\n\n  const {initialiseValidation, ...} = useAccessCheckout({\n    baseUrl: 'https://try.access.worldpay.com',\n    checkoutId: 'YOUR_CHECKOUT_ID',\n    config: useCardConfig({\n      panId: 'panInput',\n      expiryDateId: 'expiryDateInput',\n      cvcId: 'cvcInput',\n      validationConfig: {\n        validationListener: validationEventListener,\n      },\n    }),\n  });\n\n  const onLayout = () => {\n    initialiseValidation()\n      .then(() => {\n        // You may want to optionally perform some actions once validation has been successfully initialized.\n      })\n      .catch(e => {\n        // do something in case of error\n      });\n  };\n\n  return (\n    <View onLayout={onLayout}>\n      <AccessCheckoutTextInput\n          nativeID=\"panInput\"\n          placeholder=\"Pan\"\n      />\n      <AccessCheckoutTextInput\n          nativeID=\"expiryDateInput\"\n          placeholder=\"MM/YY\"\n      />\n      <AccessCheckoutTextInput\n          nativeID=\"cvcInput\"\n          placeholder=\"CVC\"\n      />\n    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a url property\n      // brand will be undefined in the case where the PAN changes from a detected to an undetected card brand\n    },\n    onPanValidChanged(isValid: boolean): void {\n      // TODO: handle the cvc validation result\n    },\n    onExpiryDateValidChanged(isValid: boolean): void {\n      // TODO: handle the cvc validation result\n    },\n    onCvcValidChanged(isValid: boolean): void {\n      // TODO: handle the cvc validation result\n    },\n    onValidationSuccess(): void {\n      // TODO: handle the form when the validation is complete i.e. all fields are valid\n    },\n  };\n\n  const {initialiseValidation, ...} = useAccessCheckout({\n    baseUrl: 'https://try.access.worldpay.com',\n    checkoutId: 'YOUR_CHECKOUT_ID',\n    config: useCardConfig({\n      panId: 'panInput',\n      expiryDateId: 'expiryDateInput',\n      cvcId: 'cvcInput',\n      validationConfig: {\n        validationListener: validationEventListener,\n      },\n    }),\n  });\n\n\n  const onLayout = () 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