@aws-solutions-constructs/aws-cloudfront-apigateway

aws-cloudfront-apigateway module

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Reference Documentation:	https://docs.aws.amazon.com/solutions/latest/constructs/

Language	Package
Python	aws_solutions_constructs.aws_cloudfront_apigateway
Typescript	@aws-solutions-constructs/aws-cloudfront-apigateway
Java	software.amazon.awsconstructs.services.cloudfrontapigateway

Overview

This AWS Solutions Construct implements an AWS CloudFront fronting an Amazon API Gateway REST API.

Here is a minimal deployable pattern definition:

Typescript

import { Construct } from 'constructs';
import { Stack, StackProps } from 'aws-cdk-lib';
import { CloudFrontToApiGateway } from '@aws-solutions-constructs/aws-cloudfront-apigateway';
import * as lambda from 'aws-cdk-lib/aws-lambda';
import * as api from 'aws-cdk-lib/aws-apigateway';

const lambdaProps: lambda.FunctionProps = {
  code: lambda.Code.fromAsset(`lambda`),
  runtime: lambda.Runtime.NODEJS_16_X,
  handler: 'index.handler'
};

const lambdafunction = new lambda.Function(this, 'LambdaFunction', lambdaProps);

const apiGatewayProps: api.LambdaRestApiProps = {
  handler: lambdafunction,
  endpointConfiguration: {
    types: [api.EndpointType.REGIONAL]
  },
  defaultMethodOptions: {
    authorizationType: api.AuthorizationType.NONE
  }
};

const apiGateway = new api.LambdaRestApi(this, 'LambdaRestApi', apiGatewayProps);

new CloudFrontToApiGateway(this, 'test-cloudfront-apigateway', {
  existingApiGatewayObj: apiGateway
});

Python

from aws_solutions_constructs.aws_cloudfront_apigateway import CloudFrontToApiGateway
from aws_cdk import (
    aws_lambda as _lambda,
    aws_apigateway as api,
    Stack
)
from constructs import Construct

lambda_function = _lambda.Function(self, 'LambdaFunction',
                                    code=_lambda.Code.from_asset(
                                        'lambda'),
                                    runtime=_lambda.Runtime.PYTHON_3_9,
                                    handler='index.handler')

api_gateway = api.LambdaRestApi(self, 'LambdaRestApi',
                                handler=lambda_function,
                                endpoint_configuration=api.EndpointConfiguration(
                                    types=[api.EndpointType.REGIONAL]
                                ),
                                default_method_options=api.MethodOptions(
                                    authorization_type=api.AuthorizationType.NONE
                                ))

CloudFrontToApiGateway(self, 'test-cloudfront-apigateway',
                        existing_api_gateway_obj=api_gateway
                        )

Java

import software.constructs.Construct;
import java.util.List;

import software.amazon.awscdk.Stack;
import software.amazon.awscdk.StackProps;
import software.amazon.awscdk.services.lambda.*;
import software.amazon.awscdk.services.lambda.Runtime;
import software.amazon.awscdk.services.apigateway.*;
import software.amazon.awsconstructs.services.cloudfrontapigateway.*;

final Function lambdaFunction = Function.Builder.create(this, "IndexHandler")
        .runtime(Runtime.NODEJS_16_X)
        .code(Code.fromAsset("lambda"))
        .handler("index.handler")
        .build();

final LambdaRestApi apiGateway = LambdaRestApi.Builder.create(this, "myapi")
        .handler(lambdaFunction)
        .endpointConfiguration(new EndpointConfiguration.Builder()
                .types(List.of(EndpointType.REGIONAL))
                .build())
        .build();

new CloudFrontToApiGateway(this, "test-cloudfront-apigateway", new CloudFrontToApiGatewayProps.Builder()
        .existingApiGatewayObj(apiGateway)
        .build());

Pattern Construct Props

Name	Type	Description
existingApiGatewayObj	api.RestApi	The regional API Gateway that will be fronted with the CloudFront
cloudFrontDistributionProps?	cloudfront.DistributionProps | any	Optional user provided props to override the default props for CloudFront Distribution
insertHttpSecurityHeaders?	boolean	Optional user provided props to turn on/off the automatic injection of best practice HTTP security headers in all responses from CloudFront
responseHeadersPolicyProps?	cloudfront.ResponseHeadersPolicyProps	Optional user provided configuration that cloudfront applies to all http responses.
cloudFrontLoggingBucketProps?	s3.BucketProps	Optional user provided props to override the default props for the CloudFront Logging Bucket.

Pattern Properties

Name	Type	Description
cloudFrontWebDistribution	cloudfront.Distribution	Returns an instance of cloudfront.Distribution created by the construct
apiGateway	api.RestApi	Returns an instance of the API Gateway REST API created by the pattern.
cloudFrontFunction?	cloudfront.Function	Returns an instance of the Cloudfront function created by the pattern.
cloudFrontLoggingBucket	s3.Bucket	Returns an instance of the logging bucket for CloudFront Distribution.

Default settings

Out of the box implementation of the Construct without any override will set the following defaults:

Amazon CloudFront

• Configure Access logging for CloudFront Distribution
• Enable automatic injection of best practice HTTP security headers in all responses from CloudFront Distribution

Amazon API Gateway

• User provided API Gateway object is used as-is
• Enable X-Ray Tracing

Architecture

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