Rough outline of web service API that would be necessary to marry Stizun to LedgerSMB

gistfile1.txt

Stizun is a small web store we are developing for lincomp.ch. Stizun is developed here:

https://github.com/psy-q/stizun

We would like to move anything that has to do with users and user accounts, invoices, orders, 
products and parts to an ERP system so that Stizun is only a thin online store frontend to the 
ERP system.

What we'd need to be able to do, ideally via REST:

1. Invoices
1.1. Read list of invoices
1.2. Read details and line items of particular invoice. Line items consist of a product and a quantity.
1.3. Create new invoice, adding and removing line items.
1.4. Read invoice status.
1.5. Update invoice status, e.g. to "cancelled", so that a reverse booking is triggered.
------
2. Users
2.1. Read list of customers (i.e. "people", "companies", anything that has a postal address)
2.2. Create new customers.
2.3. Update customer status (i.e. set a free-form text field called "status" to any string)
2.4. Read the totals and amounts of a customer's account, e.g. to let them check payment status.
------
3. Orders
3.1. Read list of orders, also scoped by customer. Includes line items of an order.
3.2. Create new orders.
3.3. Update order status, e.g. set to "cancelled"
------
4. Quotations
4.1. List quotations, also scoped by customer.
4.2. Create new quotations based on products that are already in the ERP system.
------
5. Products
5.1. Read list of products.
5.2. Update product attributes (price, stock level...)