Get an order's proof of payment
The picture a buyer sent with a payment made with a custom method, as the file itself: a PNG, JPEG or WebP. Under the permission that approves the payment, since it is what the payment is checked by. 404 where the order has none.
Needs the orders.fulfil permission (Deliver Orders).
Authorizations
A secret API key, made under Developers in the dashboard: Authorization: Bearer shoply_sk_...
Path Parameters
The store's ID. A key reaches the store it was made in: GET /key answers which.
The order. The ID in a checkout's address is the order's ID.
Response
It worked.
Whether the request did what was asked.
Words for a person. Empty when it worked.
Why it was refused, as a word that does not change. Empty when it worked.
The thing asked for: an object, or for a list its rows.
For a paged list: how many pages there are.
For a paged list: how many rows there are in all.
Anything else the route answers beside the thing itself.

