EPP-113 Gov pay integration

[vivekkumar-ho]

What?

EPP-113 - GOV Pay Integration

This task involves implementing the payment flow for the for new, renew and replace flows. The payment flow involves generating a random ID, creating an HMAC, initiating the request payment request, retrieving payment details, and error handling.

Why?

For new, renew and replace journeys, users need to pay the required amount.

How?

Utils

• generateRandomId - Generates the random id using crypto
• generateHmac - Generates an HMAC using the random id and gov pay key
• initiatePayment - Initiates a payment request to gov UK
• getPaymentDetails - Retrieves payment details
• generateRequestPayload - Generates a payment request payload based on the application type
• getErrorTemplateBasePath - Determines and returns the base path for the error templates based on the application type

behaviours

• initiate-payment-request.js - Handles the initiate of payment requests
• get-payment-info.js - Handles the retrieval and validation of payment information

Testing?

• Local testing. Branch testing has a dependency on the framework change around updating the sameSite cookie setting
• Unit tests

Screenshots (optional)

Anything Else? (optional)

Check list

• I have reviewed my own pull request for linting issues (e.g. adding new lines)
• I have written tests (if relevant)
• I have created a JIRA number for my branch
• I have created a JIRA number for my commit
• I have followed the chris beams method for my commit https://cbea.ms/git-commit/
  here is an example commit
• Ensure drone builds are green especially tests
• I will squash the commits before merging

[william-gu-hof]

Code looks good, I've not paid too much attention to the templates, css and tests. Just had a couple of small questions, and the concern we spoke on the phone where the payment pages have a 90 mins session, and our pages have a 30 mins session, so there is a possibility that the user could have completed the payment, but the form is not submitted