Api rest web app for qr/nfc pricetag

1* What is it about: Hello, I need a web-based application, which allows my clients to scan a qr code or tap an nfc code with their cell phones and can see the price of the product, its main characteristics, means of payment, then if they slide the initial screen they can see a keypad that leads them to be able to buy the product, compare it with other products, or travel to the website of the supplier of that product. 2- Vital Characteristics Then this same application must be able to connect via API REST or GraphQL api to the suppliers' systems so as not to have to enter all the products by hand, as well as to be able to connect in the same way with the price platform, so that these are dynamic and thus not susceptible to human typing errors Additionally, the idea would be that in tablets placed in the premises it is possible to assign the same price profiles within sub-sets to have catalogs available for people who did not bring their cell phone, consulting the same database and the same integrations. The application should in addition to the theme of the rest api, be able to create * Clients * Stores * Tables * Product Profile * General Product Category * Secondary Product Categories * Lower level users who can only see their stores or tables * Usage record dashboard, to see which product was most consulted by the customer, which ones were most bought, which store they are in, which customer they are from, select weeks, days or months, general metrics that help make decisions about company level 3- Secondary Objetives. Finally, there must be a template to create the visual of the prices so that it is not the same in all stores and you can choose the number of prices to display, the name of the product, each price it contains and its associated text, brand icon, brand, and base colors. 4- Extras: It could be awesome to add as a 3rd terminal for clients, the Barcode Reading to put some totems in the store, and can watch more than just the price.