Getting Mollie credentials
In order to get started with Mollie, you need to sign up for their services, create a website profile. After getting an account, you need to create API (use the Test API key to test your first payments) keys which you need to store in your .env file:
Note: you have to generate a Crystallize secret token and secret token id to your project follow the steps to generate Crystallize access tokens and add the variables to your .env file:
Add your preffered payment methods
In order to create a payment in Mollie, you need to select the available options for your customers. You need at least one active to enable the checkout in the boilerplate. You can do so via Mollie’s dashboard, under Settings/Website Profiles/Payment methods
Adding a default Currency
Mollie support payments in ISO 4217 format. Crystallize is very flexible on creating a pricing variant, allowing you to add and name any kind of currency. e.g. Euros could be defined as €, Euro, EURO, EUR, etc.
Mollie API expects only ISO 4217 format on order creation, you may want to either create your Crystallize currencies following that format, or pass the environment variable:
In the init payment endpoint default in the NextJS eCommerce boilerplate is src/pages/api/payment-providers/mollie/create-payment.js, this is the typical flow you want to follow:
- Create a Crystallize order for the customer and the basket contents.
- Select Mollie as the payment option in the checkout.
- Receive an URL back from Mollie for where to redirect the user to approve the payment.
Note: while you are developing this on your local machine, you need an HTTP proxy so that Mollie can call your local machine, like ngrok, once ngrok is running add the HTTP forwarding URL as an env variable in your .env file:
User payment confirmation
Once you click Mollie as payment in the checkout you will see the Mollie test transaction page select paid and then click continue you will be redirected to the order confirmation page.
By default, the payment information can be used to update the order in Crystallize under /src/pages/api/payment-providers/mollie/order-update.js. Here you can choose if you would like to store extra information.
What happens now is totally up to how you run your business. We advise you to set up proper fulfilment pipelines to orchestrate the orders, which you can use to manage the order fulfilment in a structured and automated way.