For Initial Setup check out the LemonSqueezy docs from Larafast on how to setup One-time payments and Subscriptions.
Products
To get the list of products, you can use the following method:LemonSqueezyController.php
products method from the LemonSqueezyService class to get the list of products. LemonSqueezyService is a service class that contains all the methods to interact with the LemonSqueezy API.
You can cache the products to reduce the number of requests to the LemonSqueezy API. Uncomment the lines below the 
$products variable to cache the products.Subscriptions and One-time Payments
Unlike for TALL or VILT stack, in the API we cannot redirect users directly to the payment page. Instead, we need to create a checkout session and return the checkout url to the Frontend or Mobile App. The client then uses the url to redirect the user to the payment page.Subscriptions
To create a subscription, you can usesubscriptionCheckout method.
It requires variant as parameters. The $product is the product id from LemonSqueezy Store and $variant is the variant id.
LemonSqueezyController.php
One-time Payments
To create a one-time payment, you can use theproductCheckout method.
It requires $variantId parameter. The $variant is the variant id in LemonSqueezy Store.
LemonSqueezyController.php
Webhook
Check out the Webhook docs from Larafast on how to setup the webhook for LemonSqueezy.Billing Portal
If you want to allow users to manage their subscriptions, you can use the billing portal. Redirect the user to the billing portal url to allow them to manage their subscriptions.LemonSqueezyController.php
User should be a LemonSqueezy customer (means purchased a product or have a subscription) to access the billing portal.

