This is Server side API. Part of Test assignment for fetching banking data (daily currencies) from NBRB.

## Description - `Device` used for user managment and **JWT authentication is used for API authentication**. - API has POST `/api/authenticate` endpoint for JWT authentication. - API has GET `/api/v1/currencies.json` endpoint available after authentication. It takes `day` param if you want to fetch currencies for a specific day. By default it will return all available in DB currencies. At some point pagination and caching should be added. - **Currency** is a list of daily currencies. Is has json `daily_rates` column and `valid_at` column. Fetched daily by `cron job`. Also can be populated by running rake task `rake currencies:generate_for_a_month_before_today`.

• Units specs written with Rspec.

• Banking info is fetched from official National Belarussian Bank website with savon SOAP client.

• Rubocop is used for a good code style. Run example: rubocop app/ spec/

Tech info:

• Rails v 6.0.3 using webpack and bootstrap
• Ruby version 2.6
• Database PostgreSQL with json column types support, 10+ recommended.

Setup

You can run this app with docker-compose:

docker-compose up -d
docker-compose exec app rails db:create db:migrate db:seed
docker-compose exec app bin/bundle exec rake currencies:generate_for_a_month_before_today

API JWT authentication url:

To receive JWT token make POST /api/authenticate with email and password for example:

curl -H "Content-Type: application/json" -X POST -d '{"email":"user@mail.com","password":"password123"}' http://localhost:3000/api/authenticate
=> {"auth_token":"eyJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjozLCJleHAiOjE1OTI3Njk2ODR9.Q-pjqnOXHRdTLC88g6WS_s_vbocToib7zbtWMUviZ0o"}

Example with docker-compose host:

curl -H "Content-Type: application/json" -X POST -d '{"email":"user@mail.com","password":"password123"}' http://0.0.0.0:3000/api/authenticate