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Basic CRUD API

Install the dependencies using npm i command.

Available Scripts

In the project directory, you can run:

npm run start:dev

Runs the app in the development mode.
Send requests to http://localhost:4000 to start using the API.

npm run start:prod

Runs the app in the production mode.
Send requests to http://localhost:4000 to start using the API.

npm run start:multi

Runs the app in the development mode with the Load Balancer.
The Load Balancer is running on the port 4000 and all workers are running on the ports starting from 4001 to (whatever number of parallel processes your machine supports). The Load Balancer is implemented using Round Robin technique.
Send requests to http://localhost:4000 to start using the API.

npm test

Runs unit tests.

Scope

[x] The repository with the application contains a Readme.md file containing detailed instructions for installing, running and using the application
[x] GET api/users implemented properly
Expected response body is

{
    "ok": true,
    "data": {
        "users": [...],
    }
}

[x] GET api/users/{userId} implemented properly
Expected response body is

{
    "ok": true,
    "data": {
        "user": {...},
    }
}

[x] POST api/users implemented properly
Expected response body is

{
    "ok": true,
    "data": {
        "user": {...},
    }
}

[x] PUT api/users/{userId} implemented properly
Expected response body is

{
    "ok": true,
    "data": {
        "user": {...},
    }
}

[x] DELETE api/users/{userId} implemented properly
[x] Users are stored in the form described in the technical requirements
[x] Value of port on which application is running is stored in .env file

Advanced Scope

[x] Task implemented on Typescript
[x] Processing of requests to non-existing endpoints implemented properly
[x] Errors on the server side that occur during the processing of a request should be handled and processed properly
[x] Development mode: npm script start:dev implemented properly
[x] Production mode: npm script start:prod implemented properly

Hacker Scope

[x] There are tests for API (not less than 3 scenarios)
[x] There is horizontal scaling for application with a load balancer