open lesson how we built guide me right - open campus tiscali
TRANSCRIPT
Recipe● Guide Me Right?● Building Guide Me Right
○ Technologies■ Language ■ Framework■ Architecture
● What we learned○ Clean code○ Refactoring○ Testing
How it works
Technologies
How to choose a language
● A language you know very well● A language you like● Libraries!● With tools that help you make less mistakes
Scala is..
● SCALAble● Object Oriented● Functional● Expressive!● Interoperability with Java● Type Inference● Concurrency & Distribution
Frameworks
(Mozilla Guy)
https://github.com/brianhigh/data-workshop/blob/master/Web_Enabled_Data.md
Lots of frameworks...
How to choose a framework
● Documentation● Popularity● Community support● Actively maintained● Secure● As productive as possible
● Secure - Lift apps are resistant to common vulnerabilities including many of the OWASP Top 10
● Developer centric - Lift apps are fast to build, concise and easy to maintain
● Designer friendly - Lift apps can be developed in a totally designer friendly way
● Scalable - Lift apps are high performance and scale in the real world to handle insane traffic levels
● Modular - Lift apps can benefit from, easy to integrate, pre built modules
● Interactive like a desktop app - Lift's Comet support is unparalleled and Lift's ajax support is super-easy and very secure
Architecture
Monolithic Microservices
Monolithic Architecture Pattern
https://medium.com/aws-activate-startup-blog/using-containers-to-build-a-microservices-architecture-6e1b8bacb7d1#.3ma20ougu
Microservices Architecture Pattern
https://medium.com/aws-activate-startup-blog/using-containers-to-build-a-microservices-architecture-6e1b8bacb7d1#.3ma20ougu
Start with a monolithic architecture, then evolve
Recap
What we learned
● Clean the Code RIGHT NOW○ Later = Never
● Leave the campground cleaner than you found it● Single Responsibility Principle
Refactoring
Restructuring existing computer code – changing the factoring – without changing its external behavior.
[Wikipedia]
Testing
Testing
● How could i break it? Hack your code● Test after refactoring
○ ScalaTest/Selenium
Testing can only prove the presence of bugs, not their absence. [Edsger W. Dijkstra]
https://ricsirigu.github.io
https://it.linkedin.com/in/riccardosirigu