###invoicing app
##Index page
##Invoice create page
##Paid Invoice

. Rails version : 5.2 . Sidekiq for background jobs . postgres for database . Rspec test cases . Used helpers to calculate total amount . Backgoud jobs to update payment . Used callbacks, validations, eager loading ... etc
How to start app:
- Install the ruby and rails versions specified in the Gemfile and .ruby-version
- Do bundle install, create databases and run migrations
- Install and start redis
- Start rails app and sidekiq also
- Run the rspec to see test coverage