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The Simple Webservice

This is an example CDK stack to deploy The Simple Webservice stack described by Jeremy Daly here - https://www.jeremydaly.com/serverless-microservice-patterns-for-aws/#simplewebservice

Most of this code was borrowed from https://www.cdkworkshop.com

This is the most basic of implementations and would have to be hardened before production use. e.g. cognito added to the API Gateway

Architecture

After deployment you should have a proxy api gateway where any url hits a lambda which inserts a record of the url into a dynamodb with a count of how many times that url has been visited.

Useful commands

  • dotnet build src compile this app
  • cdk deploy deploy this stack to your default AWS account/region
  • cdk diff compare deployed stack with current state
  • cdk synth emits the synthesized CloudFormation template

Deploy with AWS Cloud9

  • Create an Ubuntu AWS Cloud9 EC2 development environment
  • Add the Microsoft repository 
    wget https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb

    sudo dpkg -i packages-microsoft-prod.deb
  • Install the .NET Core SDK 
    sudo apt-get update; \
sudo apt-get install -y apt-transport-https && \
sudo apt-get update && \
sudo apt-get install -y dotnet-sdk-3.1
  • Clone the CDK Patterns repo 
    git clone https://github.com/cdk-patterns/serverless.git
  • Change directory 
    cd serverless/the-simple-webservice/csharp
  • Build the project to see if .NET Core has been setup correctly (optional) 
    dotnet build src
  • Deploy the stack 
    cdk deploy