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March 8, 2020 20:29
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cdk-api-gateway-split-stacks
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import { RestApi, Cors, CfnResource, CfnMethod, AuthorizationType } from '@aws-cdk/aws-apigateway'; | |
import * as lambda from '@aws-cdk/aws-lambda'; | |
import { Stack, App, StackProps } from '@aws-cdk/core'; | |
import { NestedStack } from '@aws-cdk/aws-cloudformation'; | |
const name = 'stackName'; | |
export class Methods extends Stack { | |
constructor(app: App, id: string, props: StackProps) { | |
super(app, id, props); | |
const restApi = new RestApi(this, name, { | |
defaultCorsPreflightOptions: { | |
allowOrigins: Cors.ALL_ORIGINS, | |
}, | |
}); | |
const root = restApi.root.addResource('hashtags'); | |
const defaultLambdaProps = { | |
code: new lambda.AssetCode('lambda'), | |
runtime: lambda.Runtime.NODEJS_10_X, | |
memorySize: 256, | |
tracing: lambda.Tracing.ACTIVE, | |
}; | |
// tslint:disable-next-line:no-function-constructor-with-string-args | |
const lambdaFunction = new lambda.Function( | |
this, | |
'lambdaFunction', | |
{ | |
...defaultLambdaProps, | |
handler: 'get-hashtags-from-keywords.handler', | |
}); | |
const methodsStack = new NestedStack(this, 'methodsStack'); | |
const singleItem = new CfnResource(methodsStack, 'id', { | |
restApiId: root.restApi.restApiId, | |
pathPart: '{keywords}', | |
parentId: root.resourceId, | |
}); | |
new CfnMethod(methodsStack, 'method1', { | |
httpMethod: 'GET', | |
restApiId: root.restApi.restApiId, | |
resourceId: root.resourceId, | |
authorizationType: AuthorizationType.NONE, | |
integration: { | |
integrationHttpMethod: 'POST', | |
type: 'AWS_PROXY', | |
uri: `arn:aws:apigateway:us-east-1:lambda:path/2015-03-31/functions/${lambdaFunction.functionArn}/invocations`, | |
}, | |
}); | |
new CfnMethod(methodsStack, 'method2', { | |
httpMethod: 'POST', | |
restApiId: root.restApi.restApiId, | |
resourceId: singleItem.ref, | |
authorizationType: AuthorizationType.NONE, | |
integration: { | |
integrationHttpMethod: 'POST', | |
type: 'AWS_PROXY', | |
uri: `arn:aws:apigateway:us-east-1:lambda:path/2015-03-31/functions/${lambdaFunction.functionArn}/invocations`, | |
}, | |
}); | |
new CfnMethod(methodsStack, 'method3', { | |
httpMethod: 'DELETE', | |
restApiId: root.restApi.restApiId, | |
resourceId: singleItem.ref, | |
authorizationType: AuthorizationType.NONE, | |
integration: { | |
integrationHttpMethod: 'DELETE', | |
type: 'AWS_PROXY', | |
uri: `arn:aws:apigateway:us-east-1:lambda:path/2015-03-31/functions/${lambdaFunction.functionArn}/invocations`, | |
}, | |
}); | |
// this is required to trigger deployment update, but may not include all changes | |
restApi.latestDeployment?.addToLogicalId(Date.now()); | |
// this is required for creation and to wait for all changes before updating deployment | |
restApi.latestDeployment?.node.addDependency(methodsStack); | |
} | |
} | |
new Methods(new App(), 'MethodsStack', { stackName: name }); |
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