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This sample serverless application is built with a CDK-based framework SST and a UI written in React. Data is stored in DynamoDB.
The goal was to build a fully functional application that is very simple with as little boilerplate code and as few libraries as possible.
The application is deployed here:
https://d3543jtd1wd22c.cloudfront.net
(if not already removed)
Code
The repository is structured as a monorepo with NPM workspaces.
Folders:
frontend- The frontend written in React.service\core- Business logic.service\functions- Code for AWS Lambda.service\test- Unit, integration and end-to-end tests.
How to run
npm run start
Starts the Live Lambda Development environment.
npm run build
Build your app and synthesize your stacks.
npm run deploy
Deploy all your stacks to AWS.
npm run remove
Remove all your stacks and all of their resources from AWS.
npm run test
Runs tests using Vitest. Vitest is a Jest compatible framework with some improvements.
REACT_APP_API_URL=xxx npm run start:fe
Starts the Development environment for the frontend. xxx is output from the deploy returned by npm run start or npm run deploy.
Room for improvements
- There are only basic unit, integration, and end-to-end tests. None of the edge cases are covered.
- A fully end-to-end test that includes UI with frameworks like Cypress, Selenium, Puppeteer, ... would be beneficial.
- CI/CD is necessary for efficient development.
- OpenApi/Swagger would help with documenting and communicating with the frontend team.