Pet project improve some SQL skills.
Using Ruby 2.7.1
Fetch Bitcoin rate, seed fake data, show rate chart for periods 1 year, 1 month, 1 week, 1 day and 1 hour, filling missing data.
Setup as usual
bundle
rails db:create db:migrate
rails -s
http://127.0.0.1:3000/
rails db:seed # to generate lots of data
Start sidekiq to start receiving new data.