Getting Started with the GoCardless Payment Gateway

GoCardless is a payment gateway available in Europe and in the UK that allows for Direct Debit payments.

The WP Multisite WaaS: GoCardless Gateway adds GoCardless support to WP Multisite WaaS, allowing you to charge your customers in that region using Direct Debit.

This tutorial will cover how to setup GoCardless to start accepting payments through it on your WP Multisite WaaS network.

Note: GoCardless only works with the following currencies: EUR, GBP, AUD, SEK, and DKK.

Installing the Add-on

First of all, you'll need to install the GoCardless add-on for WP Multisite WaaS. You can do that by going to WP Multisite WaaS > Settings > Add-ons (on the sidebar). And picking the GoCardless add-on on that list.

After the add-on is installed and activated, go to WP Multisite WaaS > Settings > Payments, toggle the GoCardless option, and save.

Getting an Access Token

Create an account on GoCardless (or on the GoCardless sandbox, if you want to test it first , which is recommended). Then, after logging in, navigate to the Developers menu item.

On the Developers page, click on the Create button at the top-right corner of the screen, then click on the option Access Token.

This will open a new modal window, allowing you to create a new token. Give it a recognizable name and make sure you select the Read-write access option in the Scope menu.

The access token will appear on the screen. Copy that over and paste it onto your WP Multisite WaaS > Settings > Payments > GoCardless menu.

Be sure to place it on the right field. If it's a live toke n , toggle the sandbox mode off before pasting the token.

That's it for the first step. Next, you need to setup a webhook listener.

Setting up the Webhook Listener

When dealing with subscriptions, WP Multisite WaaS needs to hear about changes in the subscription status, new payments being made, and other such things.

The way payment gateways notify WP Multisite WaaS of those changes is using webhook calls. For that reason, in order for the integration to work 100%, we need to tell GoCardless which URL to call with all that info.

Go back to your GoCardless > Developers panel and click the Create button again, but this time, select the Webhook endpoint option.

A new window will open with the webhook endpoint options. It asks for the webhook URL, so head back to your WP Multisite WaaS settings > Payments > GoCardless and copy the webhook URL listed in there:

Additionally, you can enter a webhook secret that will be used to sign your webhook calls. Whatever you enter on that field, you'll need to enter on the WP Multisite WaaS Webhook Secret field as well.

Finish up by saving the endpoint by clicking the Create webhook endpoint button and then save your WP Multisite WaaS settings as well.

You should be ready to accept GoCardless now!