I am looking for the complete "happy path" to place an order using Magento2's REST API. So far these are all the steps I have followed. What else am I missing?
Create a user:
[POST] /rest/V1/customers
Log In (create a token):
[POST] /rest/V1/integration/customer/token
Get Product Categories for navigation:
[GET] /rest/V1/categories
Get Products:
4.1 Get Category Products:
[GET] /rest/V1/categories/{category_id}/products
4.2 Or search for a product:
[GET] /rest/V1/products
Create a cart:
[POST] /rest/V1/carts/mine
Add items to cart:
[POST] /rest/V1/carts/mine/items
Get cart payment information
[GET] /rest/V1/carts/mine/payment-information
...
What other things do I have to do to place the order?