In this article, we’ll look at using OpenAPI with .NET Core. OpenAPI is a specification for describing RESTful APIs. First, I’ll show you how to use OpenAPI to describe the APIs provided by an ASP.NET Core service. Then, we’ll use the API description to generate a strongly-typed client to use the web service with C#.
Writing OpenAPI descriptions
Developers use the OpenAPI specification to describe RESTful APIs. We can then use OpenAPI descriptions to generate a strongly-typed client library that is capable of accessing the APIs.
Note: Swagger is sometimes used synonymously with OpenAPI. It refers to a widely used toolset for working with the OpenAPI specification.
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