OpenAPI Specification (OAS) 3.0, which is based on the original Swagger 2.0 specification, has emerged as the world’s standard for defining and describing RESTful APIs.OAS 3.0 comes with a host of rich, expressive capabilities for your API design and documentation.

In this free SwaggerHub training, I look at what’s new in OAS 3.0, and show a live demo of defining APIs using OAS 3.0 in SwaggerHub. We also cover transitioning from Swagger 2.0 to OpenAPI 3.0, and how to start using OAS 3.0 for API design and documentation.


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