The API Gateway extensions support the AWS-specific authorization and API Gateway-specific API integrations for REST APIs and HTTP APIs. In this section, we describe the API Gateway extensions to the OpenAPI specification.
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To understand how the API Gateway extensions are used in an application, you can use the API Gateway console to create a REST API or HTTP API and export it to an OpenAPI definition file. For more information on how to export an API, see Export a REST API from API Gateway and Export HTTP APIs from API Gateway.
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