Freemius Plugin Licensing

This is a lite version of the main Freemius SDK, specifically developed for use in Duck Dev WordPress plugins. This library focuses exclusively on managing plugin license activation, deactivation, and updates. It does not provide any user interface, so your plugin will need to create its own UI and use this library to handle the logic.

Requirements

• PHP version 7.4 or higher.
• WordPress 5.0+

Installation

This library should be installed and included in your WordPress plugin using Composer.

composer require duckdev/freemius-plugin-licensing

Usage

Initialization

Initialize the Freemius SDK by calling the static DuckDev\Freemius\Freemius::get_instance() method with your plugin's details.

// Assuming Composer's autoload.php has been included.
$freemius = DuckDev\Freemius\Freemius::get_instance(
    12345, // Your Freemius product ID.
    array(
        'slug' => 'loggedin', // Your plugin's unique Freemius slug.
        'main_file'  => LOGGEDIN_FILE, // The path to your plugin's main file.
        'public_key' => 'pk_XXXXXXXXXXXXXXXXX', // Your plugin's public key.
    )
);

License Activation

To activate a license, call the activate() method on the license() object with the user's license key.

$freemius->license()->activate( 'XXXX-XXXX-XXXX' );

License Deactivation

To deactivate a license, simply call the deactivate() method.

$freemius->license()->deactivate();

Updates

The library will automatically handle plugin updates as long as a valid license is active. No additional code is required to check for and apply updates.