Add Paddle payment system to web-service (Node.JS, Typescript, React)

We have the fully-functional project – a cloud booking and analytics platform, built on Javascript. We need to add a billing panel into it with Paddle.com api integration (an analogue of Stripe).

1. It is necessary to create a billing section in the user account and implement the subscription management functionality with Paddle:
– trial subscription,
– subscription payment,
– subscription cancellation,
– subscription change,
– change of payment method,
– display of the current status and paid period,
– coupon.
Complete API are described here https://developer.paddle.com/getting-started/intro

2. Implement blocking of the public part with inactive subscription or trial.

* Consider that a user has the possibility of several subscriptions in the same account at the same time, if he has several active business locations.

** The front is made on https://ant.design/ and we continue to work on it. No need special styling.