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:
- Direct HTML script inclusion
- Dynamic JavaScript injection
- 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.
TypeScript LibraryIf 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);
CredentialsSee 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).
VerifyIf you need to verify cards through a zero-value authorization before enrolling a customer, you can include the
verifystructure 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:
| Parameter | Description |
|---|---|
countryCode | This parameter specifies the country for which the payment process is being set up. Use an ENUM value representing the desired country code. You can find the full list of supported countries and their corresponding codes on the Country Coverage page. |
customerSession | Refers to the current enrollment's customer session. Example: '438413b7-4921-41e4-b8f3-28a5a0141638' |
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:
| Parameters | Description |
|---|---|
name | The available names for field names are cvv, pan, or expiration. |
options.placeholder | Default placeholder for the field. |
options.styles | Additional CSS styles for the current field. |
options.label | Field visible label. |
options.showError | Defines if errors will be shown. Available options are true and false. |
options.onChange | An auxiliary function that can be configured and will run when the field content changes. Indicates if the fields have errors. |
options.onBlur | An auxiliary function that can be configured and will run when blurring from the input. |
options.validateOnBlur | Change the validation behavior, improving the user experience by providing validation feedback after the field loses focus. It is an optional parameter that is false as default. |
options.onFocus | An auxiliary function that can be configured and will run when focussing on the input. |
options.onRenderedSecureField | An auxiliary function that can be configured and will run when the element finishes rendering |
options.errorMessage | This allows for the definition of the field's error message. |
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')
Enrollment for PayoutsIf you are enrolling a credit card for the payouts flow, only the credit/debit pan is required, so you can just use the
secureNumberobject before creating the vaulted_token and ignore thesecureExpirationandsecureCvvobjects.
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.
Stay Updated
Visit the changelog for the latest SDK updates and version history.
Updated 12 days ago