Additional utilities can also take advantage of the resulting files, such as testing tools. These files can then be used by the Swagger-UI project to display the API and Swagger-Codegen to generate clients in various languages. The Swagger specification defines a set of files required to describe such an API. Swagger™ is a project used to describe and document RESTful APIs. The Swagger specification is licensed under The Apache License, Version 2.0. To automate the configuration of API Gateway you used a tool to import Swagger definitions.The key words “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SHALL NOT”, “SHOULD”, “SHOULD NOT”, “RECOMMENDED”, “MAY”, and “OPTIONAL” in this document are to be interpreted as described in RFC 2119. You don’t need to care about servers, scaling, and all the operational overhead. You have very limited overhead to operate your API because you only need to configure your API and implement the functionality. You used a Lambda function to implement the functionality: Each request is answered by the Lambda function. With API Gateway you can configure a RESTful API. List tasks by category: curl -vvv -X GET https: // $ApiGatewayEndpoint /category/ $Category /taskĭelete API Gateway (replace $ApiId): $ aws apigateway delete-rest-api -rest-api-id $ ApiIdĭelete CloudFormation stack: $ aws cloudformation delete-stack -stack-name apigatewayĭelete S3 bucket (replace $S3Bucket): $ aws s3 rb -force s3://$S3Bucket A simple Swagger definition that defines what happens if a GET request is sent to resource /user follows: ' -H "Content-Type: application/json" $ApiGatewayEndpoint/ user/ $UserId/task Swagger offers a large ecosystem offering powerful tools: you are able to generate client SDKs, visually edit your Swagger definition and use many other helpful tools. The cool thing about Swagger is that the API definition can be used by: Swagger defines a way to describe your RESTful API in a format like JSON. You can use a popular framework called Swagger to define a REST API. Mapping integration output to HTTP output.Mapping HTTP input to integration input.If you want to define a REST API you need to specify: If we zoom into the API Gateway component of the previous figure we see what happens inside the API Gateway. The following figure demonstrates this flow. The result of the Lambda function is returned by the API Gateway to the caller. The Lambda function can then run whatever logic is needed to answer the request. Lambda function) that should be called to process the request. You define the HTTP resources (like /user), the HTTP methods on that resources (like POST, GET, DELETE, …) and the integration (e.g. If you are interested in deploying the API with the Serverless Framework read Create a serverless RESTful API with the Serverless Framework powered by API Gateway, Lambda, and DynamoDB instead! Implementing a RESTful API with API Gateway, Lambda, and DynamoDBĪPI Gateway provides an HTTP API endpoint that is fully configurable. If you are interested in describing the API in CloudFormation read Create a serverless RESTful API with API Gateway, CloudFormation, Lambda, and DynamoDB instead! Swagger editor what is a date code#The example’s source code is available on GitHub and can be used to speed up your own project. You will use OpenAPI Specification formerly known as Swagger Specification to define the API and API Gateway in combination with Lambda to implement the API. Swagger editor what is a date how to#This article teaches you how to create a serverless RESTful API on AWS.
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