For documentation, see docs.vendure.io/reference/core-plugins/payments-plugin/

For testing out changes to the Mollie plugin locally, with a real Mollie account, follow the steps below. These steps will create an order, set Mollie as payment method, and create a payment intent link to the Mollie platform.

1. Get a test api key from your Mollie dashboard: https://help.mollie.com/hc/en-us/articles/115000328205-Where-can-I-find-the-API-key-
2. Create the file packages/payments-plugin/.env with content MOLLIE_APIKEY=your-test-apikey
3. cd packages/payments-plugin
4. npm run dev-server:mollie
5. Watch the logs for Mollie payment link and click the link to finalize the test payment.

You can change the order flow, payment methods and more in the file e2e/mollie-dev-server, and restart the devserver.

For testing out changes to the Stripe plugin locally, with a real Stripe account, follow the steps below. These steps will create an order, set Stripe as payment method, and create a payment secret.

1. Get a test api key from your Stripe dashboard: https://dashboard.stripe.com/test/apikeys
2. Use Ngrok or Localtunnel to make your localhost publicly available and create a webhook as described here: https://www.vendure.io/docs/typescript-api/payments-plugin/stripe-plugin/
3. Create the file packages/payments-plugin/.env with these contents:

STRIPE_APIKEY=sk_test_xxxx
STRIPE_WEBHOOK_SECRET=webhook-secret
STRIPE_PUBLISHABLE_KEY=pk_test_xxxx

1. cd packages/payments-plugin
2. yarn dev-server:stripe
3. Watch the logs for the link or go to http://localhost:3050/checkout to test the checkout.

After checkout completion you can see your payment in https://dashboard.stripe.com/test/payments/