Guaranteed Delivery and Global Shipping in the Fulfillment API
With release v1.2.0 of the Fulfillment API, the getOrders and getOrder calls now return the lineItemFulfillmentInstructions container, which supports eBay Guaranteed Delivery by providing guidance for handling and delivery timing when fulfilling a line item. This information is also provided for non-guaranteed delivery. For details, see the documentation for the LineItemFulfillmentInstructions type.
The latest release of the Fulfillment API includes Beta versions of JSON and YAML files that comply with version 2.0 of the OpenAPI Specification. The OpenAPI Specification is a widely adopted standard for describing RESTful APIs. The eBay API specification files can facilitate your development process through the ability to generate client code in numerous languages, using Swagger-Codegen tools, as well as the ability to easily view and test the API via Swagger UI projects.