Awesome Open Source
Awesome Open Source

This is intended to be a repo containing all of the official AWS Serverless architecture patterns built with AWS CDK for developers to use.

Follow @CdkPatterns for live discussion / new pattern announcements. I plan to add a new pattern weekly so check back regularly!

You can also check out our Deconstructing CDKPatterns YouTube channel for in depth walk throughs of the patterns.

Note, this is maintained by @nideveloper not AWS. For my motivation, please read this blog post

New to AWS CDK?

Pattern Usage

All patterns are available in Typescript and Python so pick your favourite language! Note the Typescript patterns all include unit tests but right now I have not seen a standard python testing approach

You can always clone this repo which contains every pattern in python/typescript but if you just want a single pattern in one language follow these steps:

1) Choose your pattern

Browse the "Grouped Alphabetically" patterns list below or run:

npx cdkp list

2) Download Pattern In Python or Typescript CDK

Something to be aware of is that the Python version may reuse the JS lambdas from the TypeScript version. This is to reduce the amount of development effort when creating these patterns. It means at launch the TypeScript and Python patterns are effectively identical when deployed but you get the choice of Python or TypeScript for the CDK implementation.

I will look to refactor the Python patterns slowly to full Python after initial launch. If you want to help with this effort, pull requests are always welcome!

TypeScript
All Patterns support the same commands so you can just run:
npx cdkp init {pattern-name}
cd {pattern-name}
npm run test
# requires you to be using cloud9 or have ran aws configure to setup your local credentials
npm run deploy 
Python
The CDK CLI is still installed via npm so make sure you have the latest version of node installed or the npx commands will fail. Then you can just run:
npx cdkp init {pattern-name} --lang=python
cd {pattern-name}

# create a virtual env and install your dependencies
python -m venv .env
source .env/bin/activate
pip install -r requirements.txt

# test everything is working by outputting the cloudformation
npx cdk synth
# requires you to be using cloud9 or have ran aws configure to setup your local credentials
npx cdk deploy

Patterns

The Filter Pattern By Component Used Page allows you to filter patterns by a serverless component e.g. Lambda or API Gateway HTTP API visit, otherwise:

Grouped Alphabetically

Polly

Use Amazon Polly to translate text to speech from inside a Lambda Function. You can also take advantage of Amazon Translate to change the language of the spoken text

Architecture




Single Page Application S3 Website Deploy

These are built using https://www.npmjs.com/package/cdk-spa-deploy and allow you to deploy a website in as little as 5 lines of CDK code.

Architecture




The Alexa Skill

Deploy an Alexa Skill backed by a Lambda Function and a DynamoDB Table.

Architecture




The Basic MQ

In this example we have private Amazon MQ brokers behind an internet-facing network load balancer endpoint using a subdomain.

Architecture




The Big Fan

You can integrate API Gateway directly with SNS and then add some resiliency by integrating your event consumers via sqs and message filtering.

Architecture




The CloudWatch Dashboard

Build and deploy a well architected CloudWatch dashboard with alerts for the simple webservice pattern

Architecture




The Destined Lambda

This is a stock implementation of Lambda Destinations with Amazon EventBridge

You can decouple your event driven architectures with EventBridge rules and now you can strip the custom EventBridge code from your Lambda functions with Lambda Destinations.

Architecture




The Dynamo Streamer

This was taken from this Tweet

You can integrate API Gateway directly with DynamoDB and that way your systems can be more resilient! "Code is a liability" so less lambda functions, less liability

Architecture




The EFS Lambda

This was taken from this Blogpost

You can now attach an EFS File System to your Lambda Function for persistence between executions or across different Functions

Architecture




The EventBridge ATM

This was taken from this Blogpost

You can easily create routing rules in EventBridge to send the same event to multiple sources based on conditions. This example shows you how

Architecture




The EventBridge Circuit Breaker

Integrate with unreliable external services? Build a circuit breaker and handle the risk
Architecture




The EventBridge ETL

Build a fully serverless CSV to DynamoDB pipeline
Architecture




The Lambda Circuit Breaker

Deploy Gunnar Grosch's circuitbreaker-lambda inside a reference architecture

Architecture




The Lambda Power Tuner

Use the Lambda Power Tuner state machine to work out the optimum configuration settings for your Lambda Function

Architecture




The Lambda Trilogy

See the 3 states of Lambda in action (Single Purpose Function, Fat Lambda and Lambda-lith) Architecture




The Media Live Stream

This is an example of how to deploy a Serverless environment to stream live event content. Architecture




The Predictive Lambda

Deploy a custom Python ML model inside a Docker container running on AWS Lambda Architecture




The RDS Proxy

Use RDS Proxy to protect a MySQL RDS Instance from the massively scalable Lambda Function querying it Architecture




The Saga Step Function

A mechanism for handling distributed transactions within your system. Architecture




The Scalable Webhook

Need to integrate a non serverless resource like RDS with a serverless one like Lambda? This is your pattern

Architecture




The Scheduled Lambda

Use EventBridge to trigger a Lambda Fuction on a schedule

Architecture




The Simple GraphQL Service

Simple graphQL service built with AppSync

Architecture




The Simple Webservice

The most basic pattern on cdkpatterns, the start of most peoples serverless journey

Architecture




The State Machine

Have complex orchestration logic in your application? Build a state machine
Architecture




The WAF API Gateway

This is a cdk stack to deploy a simple API gateway, and attach a WAF (Web Applicaiton Firewall)
Architecture




The X-Ray Tracer

Learn about using AWS X-Ray for tracing events through your system. This pattern has X-Ray enabled on API Gateway, Lambda, DynamoDB, External HTTP calls, SNS and SQS

Architecture




Grouped By Pattern Creator

Alex Casalboni

Alex Casalboni profile pic

Musician, Traveler, Software Engineer from Italy. Developer Advocate at @AWS_Italy

Twitter - @alex_casalboni

The Lambda Power Tuner

Use the Lambda Power Tuner state machine to work out the optimum configuration settings for your Lambda Function

Architecture




Andrew Frazer

Andrew Frazer profile pic

Github - @mrpackethead

The WAF API Gateway

This is a cdk stack to deploy a simple API gateway, and attach a WAF (Web Applicaiton Firewall)
Architecture




Ariadna Sanchez

Ariadna Sanchez profile pic

Ariadna Sanchez is a Research Scientist investigating the application of DL/ML technologies in the area of text-to-speech. After completing a bachelor’s in Audiovisual Systems Engineering, she received her MSc in Speech and Language Processing from University of Edinburgh in 2018. She has previously worked as an intern in NLP and TTS. During her time at University, she focused on TTS and signal processing, especially in the dysarthria field. She has experience in Signal Processing, Deep Learning, NLP, Speech and Image Processing. In her free time, Ariadna likes playing the violin, reading books and playing games.

Polly

Use Amazon Polly to translate text to speech from inside a Lambda Function. You can also take advantage of Amazon Translate to change the language of the spoken text

Architecture




Chris Plankey

Chris Plankey profile pic

CTO of MaverickApp.io, AWS Portsmouth User Group Co-Organizer and AWS Community Builder.

Github - @cplankey
Twitter - @serverlesschris

The Alexa Skill

Deploy an Alexa Skill backed by a Lambda Function and a DynamoDB Table.

Architecture




Christian Mueller

Christian Mueller profile pic

Solutions Architect @ AWS & Apache Member @ ASF

Github - @muellerc

The Basic MQ

In this example we have private Amazon MQ brokers behind an internet-facing network load balancer endpoint using a subdomain. Architecture




Danilo Poccia

Danilo Poccia profile pic

Chief Evangelist (EMEA) @AWSCloud. Mostly Serverless, IoT, AI/ML. Few pics. Some music. My opinions. Complexity is a science. http://pronoun.is/he

Twitter - @danilop

The EFS Lambda

This was taken from this Blogpost

You can now attach an EFS File System to your Lambda Function for persistence between executions or across different Functions

Architecture




Eric Johnson

Eric Johnson profile pic

Christian, husband, dad of 5, musician, Senior Developer Advocate - Serverless for @AWScloud. Opinions are my own. #Serverless #ServerlessForEveryone

Twitter - @edjgeek
Youtube - bit.ly/edjgeek

The Dynamo Streamer

This was taken from this Tweet

You can integrate API Gateway directly with DynamoDB and that way your systems can be more resilient! "Code is a liability" so less lambda functions, less liability

Architecture




Gerald Stewart

Gerald Stewart profile pic

Software Engineer @Liberty_IT

Twitter - @_gerald20

The Scheduled Lambda

Use EventBridge to trigger a Lambda Fuction on a schedule

Architecture




Gunnar Grosch

Gunnar Grosch profile pic

Senior Developer Advocate @awscloud

Twitter - @GunnarGrosch
Blog - grosch.se

The Lambda Circuit Breaker

Deploy Gunnar Grosch's circuitbreaker-lambda inside a reference architecture

Architecture




Heitor Lessa

Heitor Lessa profile pic

Principal Serverless Lead, Well-Architected @ AWS

Twitter - @heitor_lessa

The Big Fan

You can integrate API Gateway directly with SNS and then add some resiliency by integrating your event consumers via sqs and message filtering.

Architecture

The Saga Step Function

A mechanism for handling distributed transactions within your system. Architecture




Hervé Nivon

Hervé Nivon profile pic

Startup Solutions Architect @AWScloud ★ Founder ★ Focus on #Innovation, #Cloud, #Startup, #AI ★ #Geek, #Curious & #Epicurean ★

Twitter - @hervenivon
Github - @hervenivon

The EventBridge ETL

Build a fully serverless CSV to DynamoDB pipeline
Architecture




James Beswick

James Beswick profile pic

☁️🥑 Dev Advocate @AWScloud Serverless

Twitter - @jbesw
Blog - medium.com/@jbesw

The EventBridge ATM

This was taken from this Blogpost

You can easily create routing rules in EventBridge to send the same event to multiple sources based on conditions. This example shows you how

Architecture




Jeremy Daly

jeremy daly profile pic

AWS Serverless Hero/🥑 & host of @ServerlessChats. I build web & open source stuff, blog, speak, and publish http://OffByNone.io every week. CTO @AlertMeNews.

Twitter - @jeremy_daly
Blog - jeremydaly.com

These patterns are from https://www.jeremydaly.com/serverless-microservice-patterns-for-aws/

The Lambda Trilogy

See the 3 states of Lambda in action (Single Purpose Function, Fat Lambda and Lambda-lith) Architecture

The Simple Webservice

The most basic pattern on cdkpatterns, the start of most peoples serverless journey

Architecture

The Scalable Webhook

Need to integrate a non serverless resource like RDS with a serverless one like Lambda? This is your pattern

Architecture

The State Machine

Have complex orchestration logic in your application? Build a state machine
Architecture

The EventBridge Circuit Breaker

Integrate with unreliable external services? Build a circuit breaker and handle the risk
Architecture




Joppe Pelzer

Joppe Pelzer profile pic

Joppe Pelzer is a Language Engineer working on text-to-speech for English and building style voices. With bachelor’s degrees in linguistics and Scandinavian languages, she graduated from Edinburgh University with an MSc in Speech and Language Processing in 2018. During her masters she focused on the text-to-speech front end, building and expanding upon multilingual G2P models, and has gained experience with NLP, Speech recognition and Deep Learning. Outside of work, she likes to draw, play games, and spend time in nature.

Polly

Use Amazon Polly to translate text to speech from inside a Lambda Function. You can also take advantage of Amazon Translate to change the language of the spoken text

Architecture




Leandro Damascena

Leandro Damascena profile pic

Cloud Solutions Architect, Writer http://leandrodamascena.medium.com and Open-source enthusiast.

The Media Live Stream

This is an example of how to deploy a Serverless environment to stream live event content. Architecture




Matt Coulter

nideveloper profile pic

Software Architect, working for @Liberty_IT in Belfast. Passionate about #Serverless, #AWS, @cdkpatterns, #TCO, CI/CD and #TrunkBasedDev.

Twitter - @nideveloper
Blog - mattcoulter.com

Single Page Application S3 Website Deploy

These are built using https://www.npmjs.com/package/cdk-spa-deploy and allow you to deploy a website in as little as 5 lines of CDK code.

Architecture

The CloudWatch Dashboard

Build and deploy a well architected CloudWatch dashboard with alerts for the simple webservice pattern

Architecture

The Destined Lambda

This is a stock implementation of Lambda Destinations with Amazon EventBridge

You can decouple your event driven architectures with EventBridge rules and now you can strip the custom EventBridge code from your Lambda functions with Lambda Destinations.

Architecture

The Predictive Lambda

Deploy a custom Python ML model inside a Docker container running on AWS Lambda

Architecture

The RDS Proxy

Use RDS Proxy to protect a MySQL RDS Instance from the massively scalable Lambda Function querying it

Architecture

The X-Ray Tracer

Learn about using AWS X-Ray for tracing events through your system. This pattern has X-Ray enabled on API Gateway, Lambda, DynamoDB, External HTTP calls, SNS and SQS

Architecture




Thorsten Hoeger

Thorsten Hoeger profile pic

Cloud Evangelist, CEO @ Taimos GmbH @taimosgmbh - AWS Community Hero - AWS, Alexa, Serverless, Gemeinderat @fw_reichenbach

Twitter - @hoegertn
LinkTree - @hoegertn

The Simple GraphQL Service

Simple graphQL service built with AppSync

Architecture

Vyas Sarangapani

Vyas Sarangapani profile pic

Software Developer, SAP Cloud Applications Architect, Block chain Evangelist, Marathoner, Ultra Runner, Information Junkie, Ambivert

Twitter - @madladvyas
Medium - @svyasrao22

The EventBridge ETL

Build a fully serverless CSV to DynamoDB pipeline
Architecture

Wallace Printz

Wallace Printz profile pic

Wallace Printz is a Senior Solutions Architect based in Austin, Texas. He helps customers across Texas transform their businesses in the cloud. He has a background in Semiconductors, R&D, and Machine Learning.

Twitter - @WallacePrintz
Github - @WPrintz

The Basic MQ

In this example we have private Amazon MQ brokers behind an internet-facing network load balancer endpoint using a subdomain. Architecture

Yan Cui

Yan Cui profile pic

AWS Serverless Hero | Independent Consultant | Author | Trainer | Speaker | Developer Advocate at @Lumigo | Teacher of @LearnLambda | Host of @RealWorldSls

Twitter - @theburningmonk
Blog - theburningmonk.com

The Lambda Trilogy

See the 3 states of Lambda in action (Single Purpose Function, Fat Lambda and Lambda-lith) Architecture

The Saga Step Function

A mechanism for handling distributed transactions within your system. Architecture

Serverless Well Architected Pattern Matcher

The AWS Well-Architected Framework helps you understand the pros and cons of decisions you make while building systems on AWS. By using the Framework, you will learn architectural best practices for designing and operating reliable, secure, efficient, and cost-effective systems in the cloud. It provides a way for you to consistently measure your architectures against best practices and identify areas for improvement. We believe that having well-architected systems greatly increases the likelihood of business success.

Serverless Lens Whitepaper
Well Architected Whitepaper

For patterns matched with their best practices from the relevant AWS Well Architected pillar please visit:

The Well Architected Pattern Matcher

External Patterns

External Patterns Page

Contributing

I hope for this to be something the whole cdk community contributes to so feel free to fork this repo and open up a pull request. For full details see our Contributing Guidelines


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