How we place Ruby Hanami from a PoC into a Production ready application at BankFacil. This talk is Part of First Hanami SP Meetup in Sao Paulo/Brazil Follow: #hanamirb_sp / #hanamirb

2. in production?

3. ?why

5. ”What's this
application do?”
”Why should the
top level directory
structure
communicate that
information?”
Ruby Midwest 2011 - Keynote: Architecture the Lost Years by Robert Martin
(https://www.youtube.com/watch?v=WpkDN78P884)

6. ”The web is a detail”
”The web is a delivery
mechanism!”
Ruby Midwest 2011 - Keynote: Architecture the Lost Years by Robert Martin
(https://www.youtube.com/watch?v=WpkDN78P884)

8. Back in October/2015 – Hanami was called Lotus
http://hanamirb.org/blog/2016/01/22/lotus-is-now-hanami.html
Starting up a Proof of Concept

9. The selection
• Hanami Model
• Repositories
• Entities
• Object Mapping
• Sequel abstraction
• Hanami Validation
• Input Filtering
• Input Validation

10. The Requirement
• Asset Pipeline
• ERB-like Views
• Javascript helpers
We’re asked to keep Rails under the hood due frontend requirements

11. The Plan

12. PoC’s Final Presentation
The idea was gain the ”green card” from our tech team to starting the project with this structure
https://github.com/hlegius/hanami-rails-as-frontend

13. Right after* PoC’s approval
All frontend-related stuff goes to
applications
Actually, it was 5-7 days after PoC’s approval =P

14. Release v0.99
=> /web
Form Objects
Grape gem
JSON API Spec Representation
Hanami Validations
Domain Model
(Hanami Model)
DDD Boundaries
(Infra & Application layers)
Rake Tasks

15. in production! <3

16. Rails autoloading Hell
http://urbanautomaton.com/blog/2013/08/27/rails-autoloading-hell/
After 7 months, Rails decided to demand attention

17. Good bye Rails; Hello Hanami (again)
Changes applied in Production env in 5 working days

18. Final considerations
• Your team must be engaged and
accept the adoption
• You can not do this alone! (read it
multiple times)
• PoC is a game changer
• Practice; Practice; Practice*
• Hanami v0.7.3 is not ready for
production, they say.
* The Passionate Programmer - Chad Fowler – The Pragmatic Bookshelf

19. Thank you!
@hanamirb
http://hanamirb.org
@hanamirb_sp Presented by @hlegius