RESTful API integrate a payment gateway - Peach Payments

We have joined a payment gateway company called Peach Payments and we want to develop a payment system for our customers using their RESTful API found on the following link: ---> [login to view URL] We have an existing react native application and want to integrate peach payments in the app 1. Tokenize the card and save it for future use 2. Use tokenized card in the database to bill or charge XXX amount on the card 4. Reverse payment charged All these functions are available and possible through their API or through their this guide: [login to view URL]