{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "#/components/schemas/OnlineInvoice", "title": "OnlineInvoice", "externalDocs": { "url": "http://developer.xero.com/documentation/api/invoices/" }, "properties": { "OnlineInvoiceUrl": { "description": "the URL to an online invoice", "type": "string" } }, "type": "object" }