Simple NodeJS based URL shortener built with Nest framework TypeScript starter repository. The approach uses different 3 different types of data stores:

• In-memory Hash Map for proof-of-concept.
• Redis database for classic key/value storage.
• CosmosDB for geo-replicable NoSQL database.

Azure Dev Containers was used to simplify local development in VSCode. The /.devcontainer directory includes a docker compose file used to start the App, Redis, and Cosmos DB emulator services for local development.

$ npm install

# development
$ npm run start

# watch mode
$ npm run start:dev

# production mode
$ npm run start:prod

# unit tests
$ npm run test

# e2e tests
$ npm run test:e2e

# test coverage
$ npm run test:cov