Creating a Custom WordPress Plugin to Manage MailPoet Subscribers with REST API

In this tutorial, we'll walk through the process of creating a custom WordPress plugin that leverages the MailPoet API to subscribe and unsubscribe users through REST API endpoints. This can be particularly useful for integrating MailPoet with external applications or services.

Prerequisites

MailPoet Plugin: Ensure that the MailPoet plugin is installed and activated on your WordPress site.

MailPoet API Key: Obtain your MailPoet API key from the MailPoet settings.

Step 1: Setting Up Your Custom Plugin

Create a new directory in your WordPress plugins folder and name it mailpoet-custom-endpoint. Inside this directory, create a file named mailpoet-custom-endpoint.php.

Add the following code to mailpoet-custom-endpoint.php:

Replace "YOUR_MAILPOET_API_KEY" with your actual MailPoet API key.

Step 2: Implementing Subscribe and Unsubscribe Logic

Inside the mailpoet_subscribe_endpoint and mailpoet_unsubscribe_endpoint functions, you need to implement the logic for subscribing and unsubscribing users using the MailPoet API. Refer to the MailPoet API documentation for the addSubscriber and unsubscribe methods.

Add your logic within the respective sections marked with comments.

Step 3: Testing the Endpoints

Activate the plugin in the WordPress admin.

Use a tool like Postman or cURL to send POST requests to the created endpoints.

For the subscribe endpoint:

Adjust the data based on your requirements.