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@hughevans Deploying Serverless applications with AWS CDK CanberraJS August 2021

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Outline • What is the AWS CDK? • Options for packaging Lambdas functions in CDK • Making a HTTP API • Deploying a frontend • Live demo • Questions If time permits: • Keeping CDK up to date • AWS Step Functions

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What is the AWS CDK?

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Infrastructure as code

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Three levels of CDK construct • Level 1 – Constructs that implement one-to-one mapping of a CloudFormation resources: • Level 2 – Constructs provided by CDK libraries for service to service interactions with logical defaults and convenience decorator functions • Level 3 – Highest level of abstraction. Can be universally reusable or private to your domain where it encapsulates fi xed tokens of con fi guration

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npm install -g aws-cdk

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mkdir myapp cd myapp

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cdk init app --language typescript

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package.json

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npm run cdk synth

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npm run cdk deploy

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npm run cdk diff

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npm run cdk destroy

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Options for packaging Lambdas functions in CDK

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Sharing the same package.json as CDK

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Notable options

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From a local directory

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From a local zip file

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From a local Docker image

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From Docker image in ECR

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Making a HTTP API

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AWS API Gateway

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Live demo

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Keeping CDK up to date

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Closing remarks

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Questions