By now a new checkout is built at least by params patron_id and item_id. This makes it a bit difficult if you only have a barcode of the item available, f.e. from RFID middleware applications, as you have to make another API call to retrieve the item_id for a barcode first. I would propose to enhance the POST /checkouts (addCheckout) route to accept either item_id or barcode (external_id in API) as JSON params.
Created attachment 168503 [details] [review] Bug 37253: Enhance POST /checkouts endpoint to accept barcode or item_id This patch adds external_id as a body param in POST /checkouts which acts as the items barcode. This enhances the checkouts route to checkout items directly via barcode which could be useful for external tools like Koha Offline Circulation Tool Test plan: a) apply patch b) enable system preference RESTBasicAuth c) check out an item via an API testing tool. Be sure that item is not checked out already. Auth: username: koha & password: koha Body JSON: { "external_id" : "39999000011418", "library_id": "CPL" } POST http://localhost:8081/api/v1/checkouts d) check response code 201 and response content