@highnoteplatform/card-viewer NPM

@highnoteplatform/card-viewer

Note: This library is in a pre-release phase. Prior to the release of version 1.0.0, breaking changes may be introduced.

The Highnote Card Viewer library allows you to embed sensitive card data in your UI seamlessly using iframes. This allows you to avoid PCI-scoped data flowing through your servers or being accessible to scripts running on your page. You can either render card data as individual fields or render a customized card image (coming soon).

Usage

Card Viewer Fields

Note: Read the full documentation here.

Installation

With npm:

npm i @highnoteplatform/card-viewer

With yarn:

yarn add @highnoteplatform/card-viewer

Generate a client token

On your server, generate a client token using the GraphQL API.

See the generatePaymentCardClientToken docs.

GraphQL query

mutation GeneratePaymentCardClientToken(
  $input: GeneratePaymentCardClientTokenInput!
) {
  generatePaymentCardClientToken(input: $input) {
    ... on ClientToken {
      value
      expirationDate
    }
  }
}

Input variables

{
  "input": {
    "paymentCardId": "MC43LjE=",
    "permissions": ["READ_RESTRICTED_DETAILS"]
  }
}

Response

{
  "data": {
    "generatePaymentCardClientToken": {
      "value": "TOKEN",
      "expirationDate": "2022-02-07T20:04:50.633Z"
    }
  },
  "extensions": {
    "requestId": "example-request-id"
  }
}

Prepare your HTML

You will need to provide the Card Viewer with the elements you want to render iframes into for each field.

Card Number
CVV
Expiration date

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Payment Card</title>
  </head>
  <body>
    <p>Card Number</p>
    <div id="cardNumber">
      <!-- An iframe will be injected here -->
    </div>

    <p>CVV</p>
    <div id="cvv">
      <!-- An iframe will be injected here -->
    </div>

    <p>Expiration Date</p>
    <div id="expirationDate">
      <!-- An iframe will be injected here -->
    </div>
  </body>
</html>

Initialize the library

import { renderFields } from "@highnoteplatform/card-viewer";

const { unmount } = await renderFields({
  clientToken: "client token from server",
  // This is the same paymentCardId used to generate the token
  paymentCardId: "MC43LjE=",
  // This allows a user to click and copy the value of a field. Enabled by default
  enableClipboard: true,
  // Only needed is clipboard is enabled
  onCopyToClipboardSuccess: ({ field }) => {
    console.log(`${field} value copied!`); // cardNumber value copied!
  },

  onError: (error) => {
    // Handle errors
  },

  // Specify the individual fields to render data into
  elements: {
    cardNumber: {
      selector: "#cardNumber",
    },

    cvv: {
      selector: "#cvv",
      // Example style payload allowing customization of the given field.
      styles: {
        color: "black",
        fontFamily: "monospace",
        cursor: "pointer",
        fontWeight: "medium",
        fontSize: "1rem",

        ":hover": {
          backgroundColor: "rgba(0, 0, 0, .2)",
      },
    },

    expirationDate: {
      selector: "#expirationDate",
    },
  },
});

@types/uuid uuid

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