Secure Fields (Enrollment)

Follow this step-by-step guide to implement and enable Yuno's Secure Fields Enrollment functionality in your application.

Step 1: Include the library in your project

Before proceeding with the Secure Fields implementation, see the SDK Integration Overview for detailed instructions on how to properly integrate the SDK into your project.

The integration guide provides three flexible methods:

1. Direct HTML script inclusion
2. Dynamic JavaScript injection
3. NPM module installation

Choose the integration method that best suits your development workflow and technical requirements. After completing the SDK integration, you can proceed with the following steps to implement the secure fields functionality.

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TypeScript Library

If you are using TypeScript, Yuno provides a library that you can use to see all available methods in the Yuno Web SDK.

Step 2: Initialize secure fields with the public key

Get a Yuno instance class in your JavaScript application with a valid PUBLIC_API_KEY:

const yuno = await Yuno.initialize(PUBLIC_API_KEY);

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Credentials

See the credentials page for more information: https://docs.y.uno/reference/authentication

Step 3: Create a customer session and an enrollment payment method object

Before continuing with the process, you will need to create a customer session and a payment method object to use in the setup of your secure fields integration for enrollment. While creating the payment method object, you will need to define which one will be available for your customer to enroll (in the case of secure fields, only CARD is available).

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Verify

If you need to verify cards through a zero-value authorization before enrolling a customer, you can include the verify structure when defining the payment method object for the customer session.

Step 4: Start the enrollment process

Next, you have to create a configuration object. The essential parameters are the countryCode, which determines the country for which the enrollment process is configured, and customerSession, which refers to the current enrollment's customer session.

Parameters

Configure the secure fields with the following options:

const secureFields = yuno.secureFields({
  countryCode: "CO",
  customerSession: "eec6578e-ac2f-40a0-8065-25b5957f6dd3"
});

Step 5: Mount the Secure Fields

After defining the parameters, you will define, configure, and mount the Secure Fields. For each Secure Field, you need to define the name and options when creating it with the secureFields.create function.

The following table shows all configurations available:

Once you have set the parameter, you will render the created Secure Field with the render function by selecting an HTML element using a valid CSS selector (#, ., [data-*]).

The following code block shows an example of the parameter configuration for three Secure Fields, and as they are mounted, the fields are presented to the user:

const secureNumber = secureFields.create({
  name: 'pan',
  options: {
    placeholder: '0000 0000 0000 0000',
    styles: ``,
    label: 'Card Number',
    showError: true,
    errorMessage: "Custom Error",
    validateOnBlur: false,
    onChange: ({ error, data }) => {
      if (error) {
        console.log('error_pan')
      } else {
        console.log('not_error_pan')
      }
    },
    onBlur() {
      console.log('blur_pan')
    },
    onFocus: () => {
      console.log('focus_pan')
    },
    onRenderedSecureField: ()=> {
      console.log('render completed')
    }
  },
})

secureNumber.render('#pan')

const secureExpiration = secureFields.create({
  name: 'expiration',
  options: {
    placeholder: 'MM / YY',
    styles: ``,
    label: 'Card Expiration',
    showError: true,
    onChange: ({ error }) => {
      if (error) {
        console.log('error_expiration')
      } else {
        console.log('not_error_expiration')
      }
    },
    onBlur() {
      console.log('blur_expiration')
    },
    onFocus: () => {
      console.log('focus_expiration')
    },
    onRenderedSecureField: ()=> {
      console.log('render completed')
    }
  },
})

secureExpiration.render('#expiration')

const secureCvv = secureFields.create({
  name: 'cvv',
  options: {
    placeholder: 'CVV',
    styles: ``,
    label: 'CVV',
    showError: true,
    onChange: ({ error }) => {
      if (error) {
        console.log('error_cvv')
      } else {
        console.log('not_error_cvv')
      }
    },
    onBlur() {
      console.log('blur_cvv')
    },
    onFocus: () => {
      console.log('focus_cvv')
    },
    onRenderedSecureField: ()=> {
      console.log('render completed')
    }
  },
})

secureCvv.render('#cvv')

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Enrollment for Payouts

If you are enrolling a credit card for the payouts flow, only the credit/debit pan is required, so you can just use the secureNumber object before creating the vaulted_token and ignore the secureExpiration and secureCvv objects.

After they are mounted, the three secure fields will be shown:

Step 6: Create Vaulted Token

To enroll, create a Vaulted Token:

const vaultedToken = await secureFields.generateVaultedToken({
  cardHolderName: 'John Deer',
  customer: {
    document: {
      document_number: '1090209924',
      document_type: 'CC',
    },
  },
});

If you need the full response, you can use secureFields.generateVaultedTokenWithInformation

 *   name: string;
 *   description: string;
 *   status: Enrollment.Status;
 *   type: Payment.Type;
 *   category: Payment.Category;
 *   provider: {
 *       type: string;
 *       action: string;
 *       token: string;
 *       enrollment_id: string | null;
 *       provider_status: string | null;
 *       redirect: string | null;
 *       raw_response: unknown;
 *   };
 *   created_at: Date;
 *   updated_at: Date;
 *  }
 */ 
Generate a vaulted token with customer information:

```javascript
const vaultedTokenWithInformation = await secureFields.generateVaultedTokenWithInformation({
  cardHolderName: 'John Deer',
  customer: {
    document: {
      document_number: '1090209924',
      document_type: 'CC',
    },
  },
})

Demo

In addition to the code examples provided, you can access the Demo App for a complete implementation of Yuno Secure Fields. The demo app includes working examples of all Yuno SDKs and can be cloned from the GitHub repository.

Related Links

Find more information and version history for the Web SDK below:

• Web SDK v1.3: The latest version with improved UI grouping and multilingual support.
• Web SDK v1.2: Updated continuePayment method and optional initialization parameters.