Redux Server (Nest.js Edition)

This is a tiny REST service managing counters. The counters are kept in memory, so they are reset every time you restart the service.

Each counter has

• a unique index (a number greater or equal 0) and
• a value.

You can either get or set a counter. Of course, you shouldn't set any counter in a distributed environment. Instead, you should get it and then use the increment or decrement operations on it. For presentations, it is a reasonable choice to set some counters before showing anything to your audience.

The RESTful Web Service runs at http://localhost:3000. Its Swagger UI is available at http://localhost:3000/swagger-ui/.

Installation

$ yarn install

Running the app

# development
$ yarn start

# watch mode
$ yarn start:dev

# production mode
$ yarn start:prod

Test

# unit tests
$ yarn test

# e2e tests
$ yarn test:e2e

# test coverage
$ yarn test:cov

Alternative and Corresponding Implementations

This is only one possible solution to this kind of problem.

There are some implementations of single-page applications using the services which are implemented in different programming languages and frameworks.

Here's the full picture.

Client-Side Implementations

• https://github.com/MichaelKaaden/redux-client-ngrx (Angular with NgRx)
• https://github.com/MichaelKaaden/redux-client-ng5 (Angular with angular-redux)
• https://github.com/MichaelKaaden/redux-client-ng (AngularJS with ng-redux)

Server-Side Implementations

• https://github.com/MichaelKaaden/redux-server-spring (Java with Spring Boot)
• https://github.com/MichaelKaaden/redux-server-rust (Rust with actix-web)
• https://github.com/MichaelKaaden/redux-server-golang (Go with Gin)
• https://github.com/MichaelKaaden/redux-server-nest (Node.js with Nest.js)
• https://github.com/MichaelKaaden/redux-server (Node.js with Express)