Quickbooks online integration help

Hello, we're trying to solve a problem we're currently dealing with and would greatly appreciate the help.

We are looking to integrate QuickBooks Online with our product and want to see if QBO provides the functionality we require.

1) What we want to do is have users input their information and buy different packages in our product, and have QBO generate invoices against them that we can show the users inside our product.
2) Then we want QBO to make entries of these users with the information they have provided that we can then see on its dashboard with the package cost as Amount Receivable.
3) We also have users upload a "proof of payment" image in our product when they use the invoice and complete their payment. When users upload their "proof of payment", we want QBO to update its user entries to show this "proof of payment" image and send us a notification of it doing so.


Is all of this achievable within QBO? What relevant APIs would we need to integrate our product (in-product invoice generation, QBO entries against in-product data)

Again, any help will be greatly appreciated, thank you!