Full Stack Scala Web Application

on YouTube ↗37m

" summary

Builds a working full‑stack Scala web app: a mortgage calculator that computes 360 monthly payments for a $1,000,000 loan at 5% by calling a backend API. Uses Scala.js with scalatags and scalacss for HTML/CSS/JS, sttp and newpickle for HTTP and JSON, and cask for the server. Shares case classes and validation between front and back, implements statically typed RPCs via a small RPC wrapper (about 6–7 lines), and provides a <100 lines of framework plus SBT fastOpt live reload.

AI-written summary · about

" chapters (11)

1. 0:00Introduction and goals
2. 2:33Mortgage calculator demo
3. 4:08Project architecture
4. 6:46Library and dependency stack
5. 10:02Frontend development
6. 14:38Frontend integration
7. 19:24Type-safe RPC communication
8. 23:57Server-side implementation
9. 26:43RPC wire mechanisms
10. 30:43Shared validation and use cases
11. 33:38Final utilities and conclusion

" related talks

• 29mFull Stack Scala Web Application.Pathikrit Bhowmick · Scale By the Bay 2023
• 40mFull Stack ScalaTrond Bjerkestrand · Scala Days Berlin 2018
• 50mFull stack ScalaRamnivas Laddad · Scala Days Berlin 2016
• 20mQuickly develop web applications with the FastScala frameworkDavid Antunes · Functional Conf 2025
• 29mPure Scala Approach for Building Frontend and Backend AppsTaro Saito · Scale By the Bay 2021
• 31mSCALA FROM B TO F - BACKEND DEVELOPER ON FRONTENDFilip Michalski · Scalar Conference 2023
• 34mFULL-STACK SCALA 3 WITH TYPELEVEL STACKDaniel Ciocirlan · Scalar Conference 2023
• 31mSCALAJS - WEB WITHOUT PAIN OF JAVASCRIPTJarek Ratajski · Scalar 2018