App tested under Ruby 2.4.2

• bundle install

• rake db:create

• rake db:migrate

To populate database with exchange rates it makes sense to do initial import of exchange rates (located in public/historical_data.json) as it takes some time to download all them from

• rake fixer:save

however there is also rake task to reimport everything from fixer API once again rake fixer:resync, due to rate limiting from Fixer side, there will be lot of retries however these tasks will eventually succeed.

• rails s