LOYALTY Microservice - Technical test

Skeleton

This is a project to provide Swagger support inside the Sinatra framework.
This sample was generated with the swagger-codegen project.

Choices

Swagger-generated Sinatra server

The swagger code generation offered a functional yet simple basis on which to start. It allowed me to concentrate on building the API logic with great software engineering practices.

Status Enum

Status class allows for a more flexible and extendable status hierarchy. Since the ride thresholds for each status weren't given in the instructions, I devised my own and added them as constants in loyalty_app.rb:

BRONZE_THRESHOLD = 0
SILVER_THRESHOLD = 10
GOLD_THRESHOLD = 25
PLATINUM_THRESHOLD = 50

Extension

As a quick extension to the project, I decided to add the capability of receiving any currency through the points endpoint and converting it to the correct amount of points (with relation to euros). This would facilitate the expansion of the micro-service's use to an international level. It might end up being useful cough Uber ban in London cough.

HOW TO

Launch the server

Before anything, you need to setup a MongoDB server on your machine with the classic configuration (host: localhost, port: 27017)

Then, make sure you have ruby 2.3 or above and the blunder gem installed (run bundle -v, if that doesn't work run gem install bundler to install)

> bundle install
> bundle exec rackup config.ru

The server will be up and running at tcp://localost:9292.

Voila!

Run tests

Just run ruby run_tests.rb :)

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Instructions

You must implement a loyalty micro-service, using express and a mongo database. Make your job in mind to create a pull request.

Step 1 : user loyalty points

• user earn loyalty points for each spent euros (1 euro = 1 point)
• user can check its loyalty points total

Step 2 : loyalty status

• user gets a loyalty status (bronze, silver, gold, platinum), based on its total number of rides
• add to the route for spending money the fact of doing a ride or not
• user can check its current status
• optional: user can check its ride count and know how many rides remain to do to next status

Step 3 : earning points based on current status

• number of points earned by euro depends on current user status
  • bronze: 1 euro = 1 point
  • silver: 1 euro = 3 point
  • gold: 1 euro = 5 points
  • platinum: 1 euro = 10 points