Beyond the buzzword: a reactive web application in practice
summary
Builds a small Scala web app on the Play Framework with a DOM input talking to the server over WebSocket, server state held in an Actors and Futures model, and calls out to Twitter's API. Demonstrates failure handling with a Circuit Breaker (trips after two failures, half‑open/reset logic shown), uses pipe to forward future results into actors, and proves the demo works after adjusting timeouts. Covers deployment options (Typesafe ConductR, Clever Cloud) and load testing with Gatling and Bees with Machine Guns.
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chapters (21)
- 0:00Intro
- 1:40History of web application architecture
- 8:56Memory evolution
- 11:02Content concepts
- 12:10User interface
- 13:49Actors
- 14:39Receive
- 15:56WebSocket
- 17:34Testing
- 19:40Future
- 20:28Execution context
- 22:27Error handling
- 23:12Exception recovery
- 25:12Pipe
- 27:31Circuit Breaker
- 28:48Code Example
- 34:21Deployment
- 35:13Managed Service Resolution
- 37:03Clever Cloud
- 38:24Load testing
- 39:21Akka and Nettie
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