Yarn Workspace Example

Description

An example mono-repo that combines the following technologies:

• Yarn Workspaces - to manage packages and cross dependencies
• Typescript - for type definitions in Javascript
• Jest - for unit tests
• AWS CDK - for infrastructure as code

Packages

The following packages make up the application:

• Typescript package - standard build and test configurations for all Typescript-based packages
• Hello world - Lambda runtime code for the Hello World app
• Infrastructure - Cloud infrastructure for the Hello World app

Usage

Run commands from the root to apply to all relevant packages:

yarn install # install dependencies in all packages
yarn clean # clean build artifacts in all packages
yarn build # build all packages
yarn test # test all packages
yarn cdk synth # synthesize the infrastructure

Or run commands for an explicit workspace:

yarn workspace helloworld add moment # install moment to helloworld
yarn workspace helloworld add --dev @types/aws-lambda # install @types/aws-lambda as a dev dependency
yarn workspace helloworld test --watch # run and watch the tests in helloworld

Deploy the infrastructure to AWS using aws-vault:

aws-vault exec my-profile -- yarn cdk deploy HelloWorld