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"The akka-patterns project is a dumping ground for lessons learnt on a variety of Scala / Akka / Spray topics. At the end of 5 months working on real world (commercial) projects, that were originally based on the akka-patterns architecture, Sam Halliday (@fommil) was asked to document the lessons learnt: Milestone: Lessons Learnt Pull Request: Lessons Learnt This short document is a summary of the highlights from the pull request."

Es muy importante que estudiemos este documento y proyecto todos los que estamos trabajando con akka y/o spray.

Muy lindo y accesible ejemplito para conocer Akka y sus posibilidades.

"Reactive Streams is an engineering collaboration between heavy hitters in the area of streaming data on the JVM. With the Reactive Streams Special Interest Group, we set out to standardize a common ground for achieving statically-typed, high-performance, low latency, asynchronous streams of data with built-in non-blocking back pressure-with the goal of creating a vibrant ecosystem of interoperating implementations, and with a vision of one day making it into a future version of Java."

Idea interesante para implementar usos del patrón "ask" (request-reply) con mayor seguridad de tipos.

The Eventsourced library adds scalable actor state persistence and at-least-once message delivery guarantees to Akka. With Eventsourced, stateful actors: - Persist received messages by appending them to a log (journal) - Project received messages to derive current state - Usually hold current state in memory (memory image) - Recover current (or past) state by replaying received messages (during normal application start or after crashes) - Never persist current state directly (except optional state snapshots for recovery time optimization)

Novedades importantes de Activator, para usuarios y desarrolladores de sbt, play y akka.

"Heluna offers a unique SaaS based anti-spam solution that processes millions of e-mail messages  daily. Heluna turned to the Typesafe Stack - made up of Scala, Akka and Play Framework - in order  to future-proof the platform, and allow it to easily scale out to process well into the hundreds of  millions of e-mails."

Buen set de tests comparativos entre varias implementaciones de paralelismo local.

"File-watching library for Scala. Built on Java 7's WatchService and Akka actors."

"A Scala Library for Scraping Page Metadata. Scraping metadata (e.g. title, description, url, etc.) from a URL is something that Facebook currently does for you when you paste a URL into the "Update Status" box. For a service that I'm currently building out, we wanted to do this as well for our users. Thus Metascraper was born. There was already a Ruby solution called link_thumbnailer, but since this is a I/O heavy operation, I knew I wanted to build a solution using tools that supported non-blocking I/O and could be used without getting caught in callback spaghetti. Scala, Akka, and the Play framework immediately came to mind."

"sbt plugin for running Typesafe Console in development."

"Yesterday, James Ward, developer advocate at Typesafe, presented a webinar on building Reactive Apps with the Typesafe Platform. For those of you who missed out, or simply want to rewatch and share the session with friends and colleagues, we recorded James' presentation for your viewing pleasure!"