Cars API

Cognigy Challenge

This is a part of Cognigy, the objective is to build an API to create, delete, update and get Cars.

Requirements

Build a Node.JS based which uses the Express.JS framework to expose a RESTful API to manage cars.

Use:

• modern Node.JS (node 12), ES7 / ES8 ✔️
• use a linter ✔️
• use the mongoose package from NPM ✔️
• use the express package from NPM ✔️
• use the ajv package from NPM ✔️
• containerize the solution ✔️

Deliverables

Build a Node.JS based which uses the Express.JS framework to expose a RESTful API to manage cars. Must have an endpoint for each functionality:

• Create a new car. ✔️
• Read meta-data of all cars in the system. This endpoint should really only return meta-data - there is no pagination required. ✔️
• Read the full data of an individual car. ✔️
• Delete an individual car. ✔️
• Updaten single properties of a single car. ✔️

Bonus task:

• Use Typescript for your whole application and add a simple x-api-key based authentication mechanism to your application ✔️

Tech

Main Technologies:

• NestJS - A progressive Node.js framework for building efficient, reliable and scalable server-side applications.
• NodeJS - Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine.
• Typescript - TypeScript is JavaScript with syntax for types.
• Express - Fast, unopinionated, minimalist web framework for Node.js.
• Mongoose - Elegant MongoDB object modeling for Node.js
• Docker - Build safer, share wider, run faster:
• Github Actions - Automate your workflow from idea to production
• Jest - Jest is a delightful JavaScript Testing Framework with a focus on simplicity.

Installation

Clone this github repository

$ npm install

First of all, create .env file in the main folder and add mongodb URI and de x-api-key as in the .env-example. (the env-example already has the MONGO_URI to use with docker-compose).

Running the app in the container

# run the application and mongodatabase
$ sudo docker-compose up

# stop the application and mongo database
$ sudo docker-compose down

Running the app localy

Install NestJs globally

$ npm install -g @nestjs/cliBasic

# development
$ npm run start

# watch mode
$ npm run start:dev

# production mode
$ npm run start:prod

Test

# unit tests
$ npm run test

# e2e tests
$ npm run test:e2e

# test coverage
$ npm run test:cov

Extra

• CI/CD: It is possible to make the CI/CD trough the pipelines configurations and utilization of Github Actions. All codes pushed to main will be deployed in Heroku if all the validations were completed.

Next steps

• Metrics and traceability: Implement Datadog.
• Scalability: There is just one container non scalable, for a real production it would be necessary improve this point using Kubernetes for automating deployment, scaling, and management of containerized applications
• Security: It would be wise to implement some securities approaches, but for testing propose it was not possible.