hsbalar/backend-code-challenge

Example interview test for backend candidates. https://www.mcmakler.de

JavaScriptGPL-3.0

Basic Backend Developer Interview

Dear candidate, please follow this readme and solve all questions.

Before you can start, you should prepare your development environment.

This test requires:

access to the internet
your favourite IDE
(PHP) working dev environment with PHP 7 and symfony 3.x
(Node) working dev environment with Node.js LTS
database (MongoDB, Postgres, MySQL)
nginx or alternative simple dev web server

Good luck!

Test tasks:

NOTE: You are free to use any framework you wish. Bonus points for an explanation of your choice.

Specify a default controller

for route /
with a proper json return {"hello":"world!"}

Use the api.nasa.gov

the API-KEY is N7LkblDsc5aen05FJqBQ8wU4qSdmsftwJagVK7UD
documentation: https://api.nasa.gov/api.html#neows-feed

Write a command

to request the data from the last 3 days from nasa api
response contains count of Near-Earth Objects (NEOs)
persist the values in your DB
Define the model as follows:
- date
- reference (neo_reference_id)
- name
- speed (kilometers_per_hour)
- is hazardous (is_potentially_hazardous_asteroid)

Create a route /neo/hazardous

display all DB entries which contain potentially hazardous asteroids
format JSON

Create a route /neo/fastest?hazardous=(true|false)

analyze all data
calculate and return the model of the fastest asteroid
with a hazardous parameter, where true means is hazardous
default hazardous value is false
format JSON

Create a route /neo/best-year?hazardous=(true|false)

analyze all data
calculate and return a year with most asteroids
with a hazardous parameter, where true means is hazardous
default hazardous value is false
format JSON

Create a route /neo/best-month?hazardous=(true|false)

analyze all data
calculate and return a month with most asteroids (not a month in a year)
with a hazardous parameter, where true means is hazardous
default hazardous value is false
format JSON

Additional Instructions

Fork this repository
Tests are not optional
(PHP) Symfony is the expected framework
After you're done, provide us the link to your repository.
Leave comments where you were not sure how to properly proceed.
Implementations without a README will be automatically rejected.

Bonus Points

Clean code!
Knowledge of application flow.
Knowledge of modern best practices/coding patterns.
Componential thinking.
Knowledge of Docker.
Usage of MongoDB as persistance storage.

How to run application:

To clone and run this application, you'll need Git and Node.js (which comes with npm) and MongoDB installed on your computer. From your command line:

# Clone this repository
$ git clone https://github.com/hsbalar/backend-code-challenge.git

# Go into the repository
$ cd backend-code-challenge

# Install dependencies
$ npm install

# Run the app
$ npm start