AWS::ApiGatewayV2::Api - AWS CloudFormation

AWS::ApiGatewayV2::Api

The AWS::ApiGatewayV2::Api resource creates an API. WebSocket APIs and HTTP APIs are supported. For more information about WebSocket APIs, see About WebSocket APIs in API Gateway in the API Gateway Developer Guide. For more information about HTTP APIs, see HTTP APIs in the API Gateway Developer Guide.

Syntax

To declare this entity in your AWS CloudFormation template, use the following syntax:

JSON

{ "Type" : "AWS::ApiGatewayV2::Api", "Properties" : { "ApiKeySelectionExpression" : String, "BasePath" : String, "Body" : Json, "BodyS3Location" : BodyS3Location, "CorsConfiguration" : Cors, "CredentialsArn" : String, "Description" : String, "DisableSchemaValidation" : Boolean, "FailOnWarnings" : Boolean, "Name" : String, "ProtocolType" : String, "RouteKey" : String, "RouteSelectionExpression" : String, "Tags" : Json, "Target" : String, "Version" : String } }

YAML

Type: AWS::ApiGatewayV2::Api Properties: ApiKeySelectionExpression: String BasePath: String Body: Json BodyS3Location: BodyS3Location CorsConfiguration: Cors CredentialsArn: String Description: String DisableSchemaValidation: Boolean FailOnWarnings: Boolean Name: String ProtocolType: String RouteKey: String RouteSelectionExpression: String Tags: Json Target: String Version: String

Properties

ApiKeySelectionExpression

An API key selection expression. Supported only for WebSocket APIs. See API Key Selection Expressions.

Required: No

Type: String

Update requires: No interruption

BasePath

Specifies how to interpret the base path of the API during import. Valid values are ignore, prepend, and split. The default value is ignore. To learn more, see Set the OpenAPI basePath Property. Supported only for HTTP APIs.

Required: No

Type: String

Update requires: No interruption

Body

The OpenAPI definition. Supported only for HTTP APIs. To import an HTTP API, you must specify a Body or BodyS3Location.

Required: Conditional

Type: Json

Update requires: No interruption

BodyS3Location

The S3 location of an OpenAPI definition. Supported only for HTTP APIs. To import an HTTP API, you must specify a Body or BodyS3Location.

Required: Conditional

Type: BodyS3Location

Update requires: No interruption

CorsConfiguration

A CORS configuration. Supported only for HTTP APIs. See Configuring CORS for more information.

Required: No

Type: Cors

Update requires: No interruption

CredentialsArn

This property is part of quick create. It specifies the credentials required for the integration, if any. For a Lambda integration, three options are available. To specify an IAM Role for API Gateway to assume, use the role's Amazon Resource Name (ARN). To require that the caller's identity be passed through from the request, specify arn:aws:iam::*:user/*. To use resource-based permissions on supported AWS services, specify null. Currently, this property is not used for HTTP integrations. Supported only for HTTP APIs.

Required: No

Type: String

Update requires: No interruption

Description

The description of the API.

Required: No

Type: String

Update requires: No interruption

DisableSchemaValidation

Avoid validating models when creating a deployment. Supported only for WebSocket APIs.

Required: No

Type: Boolean

Update requires: No interruption

FailOnWarnings

Specifies whether to rollback the API creation when a warning is encountered. By default, API creation continues if a warning is encountered.

Required: No

Type: Boolean

Update requires: No interruption

Name

The name of the API. Required unless you specify an OpenAPI definition for Body or S3BodyLocation.

Required: Conditional

Type: String

Update requires: No interruption

ProtocolType

The API protocol. Valid values are WEBSOCKET or HTTP. Required unless you specify an OpenAPI definition for Body or S3BodyLocation.

Required: Conditional

Type: String

Update requires: Replacement

RouteKey

This property is part of quick create. If you don't specify a routeKey, a default route of $default is created. The $default route acts as a catch-all for any request made to your API, for a particular stage. The $default route key can't be modified. You can add routes after creating the API, and you can update the route keys of additional routes. Supported only for HTTP APIs.

Required: No

Type: String

Update requires: No interruption

RouteSelectionExpression

The route selection expression for the API. For HTTP APIs, the routeSelectionExpression must be ${request.method} ${request.path}. If not provided, this will be the default for HTTP APIs. This property is required for WebSocket APIs.

Required: Conditional

Type: String

Update requires: No interruption

Tags

The collection of tags. Each tag element is associated with a given resource.

Required: No

Type: Json

Update requires: No interruption

Target

This property is part of quick create. Quick create produces an API with an integration, a default catch-all route, and a default stage which is configured to automatically deploy changes. For HTTP integrations, specify a fully qualified URL. For Lambda integrations, specify a function ARN. The type of the integration will be HTTP_PROXY or AWS_PROXY, respectively. Supported only for HTTP APIs.

Required: No

Type: String

Update requires: No interruption

Version

A version identifier for the API.

Required: No

Type: String

Update requires: No interruption

Return values

Ref

When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the API ID, such as a1bcdef2gh.

For more information about using the Ref function, see Ref.

Examples

API creation example

The following example creates a WebSocket Api resource called MyApi.

JSON

{ "MyApi": { "Type": "AWS::ApiGatewayV2::Api", "Properties": { "Name": "MyApi", "ProtocolType": "WEBSOCKET", "RouteSelectionExpression": "$request.body.action", "ApiKeySelectionExpression": "$request.header.x-api-key" } } }

YAML

MyApi: Type: 'AWS::ApiGatewayV2::Api' Properties: Name: MyApi ProtocolType: WEBSOCKET RouteSelectionExpression: $request.body.action ApiKeySelectionExpression: $request.header.x-api-key

Quick create HTTP API

The following example uses quick create to launch an HTTP API Api resource called HttpApi that's integrated with a Lambda function. Quick create produces an HTTP API with an integration, a default catch-all route, and a default stage which is configured to automatically deploy changes.

Note

To invoke a Lambda integration, API Gateway must have the required permissions. You can use a resource-based policy or an IAM role to grant API Gateway permissions to invoke a Lambda function. To learn more, see AWS Lambda Permissions in the AWS Lambda Developer Guide.

JSON

"HttpApi": { "Type": "AWS::ApiGatewayV2::Api", "Properties": { "Name": "Lambda Proxy", "Description": "Lambda proxy using quick create", "ProtocolType": "HTTP", "Target": "arn:aws:apigateway:{region}:lambda:path/2015-03-31/functions/arn:aws:lambda:{region}:{account-id}:function:{function-name}/invocations" } }

YAML

HttpApi: Type: AWS::ApiGatewayV2::Api Properties: Name: Lambda Proxy Description: Lambda proxy using quick create ProtocolType: HTTP Target: arn:aws:apigateway:{region}:lambda:path/2015-03-31/functions/arn:aws:lambda:{region}:{account-id}:function:{function-name}/invocations

See also

  • CreateApi in the Amazon API Gateway Version 2 API Reference