pay-products-ui

User interface app for product payments (Prototype/Demo/Ad-hoc etc) integrated with GOVUK Pay.

Running locally

Prerequisites

• This requires the Pay CLI, which is not publicly available at present.
• You have set up your local development environment
• Clone this repo locally.

Starting app

Copy .env.example and rename to .env. This contains the environment variables required to run the app, and contains the URLs for other microservices that products UI makes requests to, which default to the URLs that apps run using pay local are available on.

Start the Pay local environment

pay local launch --cluster paymentlinks

Start products UI

npm install && npm run compile
npm run start:dev

Visit the site on http://127.0.0.1:3000.

Debug using Visual Studio Code

• In VSCode, go to the Debug view (on MacOS, use shortcut CMD + shift + D).
• From the Run toolbar, select tne launch config Products UI.
• Add breakpoints to any file you want to debug - click in the left hand column and a red dot will appear.
• Press The green play button (F5 MacOS):
  • This will run the app in debug mode.
  • Uses nodemon so it will automatically restart on code changes.

Watching for changes

You shouldn’t need to restart the app to see changes you make.

We use nodemon which watches for changes to files and restarts the node process.

If you’re making changes to client-side JS or Sass files (anything within /browsered/ or /assets/) then running npm run watch-live-reload will watch for changes and recompile. Nodemon does not do anything here as that’s not necessary. If you install the livereload browser plugin then it will refresh your page once the assets have been compiled to the /public folder.

Running tests

To run mocha tests

npm run compile && npm test

Debug tests using Visual Studio Code

IMPORTANT NOTE - some tests do not work in debug mode

• Some integration tests do not work in debug mode. This is because the tests are dependent on other tests running before hand.
• Nevertheless, it is still useful to debug tests that do work in debug mode.

Run tests in debug mode

• In VSCode, go to the Debug view (on MacOS, use shortcut CMD + shift + D).
• From the Run toolbar, select the launch config you want to run:
  • Mocha All - runs all tests.
  • Mocha Current File - only run currently open test file.
• Add breakpoints to any file you want to debug - click in the left hand column and a red dot will appear.
• Press The green play button or F5.

Key runtime environment variables

Variable	Description
ADMINUSERS_URL
ANALYTICS_TRACKING_ID
BIND_HOST	The IP address for the application to bind to. Defaults to 127.0.0.1
COOKIE_MAX_AGE
CORRELATION_HEADER_NAME	Default x-request-id
DISABLE_INTERNAL_HTTPS
DISABLE_REQUEST_LOGGING
MAX_SOCKETS
METRICS_HOST
NODE_ENV
NODE_WORKER_COUNT	Default 1
PORT	Default 3000
PRODUCTS_URL
SELFSERVICE_DASHBOARD_URL
SELFSERVICE_DEMO_PAYMENT_RETURN_URL
SESSION_ENCRYPTION_KEY

Key build-time environment variables

Variable	Description
LOCAL_ENV
PACT_BROKER_PASSWORD
PACT_BROKER_URL
PACT_BROKER_USERNAME
PACT_CONSUMER_TAG
PACT_CONSUMER_VERSION

Vulnerability Disclosure

GOV.UK Pay aims to stay secure for everyone. If you are a security researcher and have discovered a security vulnerability in this code, we appreciate your help in disclosing it to us in a responsible manner. Please refer to our vulnerability disclosure policy and our security.txt file for details.