AWS variables for OpenAPI import - Amazon API Gateway

AWS variables for OpenAPI import

You can use the following AWS variables in OpenAPI definitions. API Gateway resolves the variables when the API is imported. To specify a variable, use ${variable-name}.

AWS variables
Variable name Description
AWS::AccountId The AWS account ID that imports the API—for example, 123456789012.
AWS::Partition The AWS partition in which the API is imported. For standard AWS Regions, the partition is aws.
AWS::Region The AWS Region in which the API is imported—for example, us-east-2.

AWS variables example

The following example uses AWS variables to specify an AWS Lambda function for an integration.

OpenAPI 3.0
openapi: "3.0.1" info: title: "tasks-api" version: "v1.0" paths: /: get: summary: List tasks description: Returns a list of tasks responses: 200: description: "OK" content: application/json: schema: type: array items: $ref: "#/components/schemas/Task" 500: description: "Internal Server Error" content: {} x-amazon-apigateway-integration: uri: arn:${AWS::Partition}:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/arn:${AWS::Partition}:lambda:${AWS::Region}:${AWS::AccountId}:function:LambdaFunctionName/invocations responses: default: statusCode: "200" passthroughBehavior: "when_no_match" httpMethod: "POST" contentHandling: "CONVERT_TO_TEXT" type: "aws_proxy"