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May 31st, 2018, ISSUE 224

READING

Incorporating FaceNet into Play framework with Silhouette authentication

Recently, while playing around the FaceNet Tensorflow implementation I have come up with the idea of incorporating the neural networks face recognition capabilities with the standard authentication mechanism in a web application.
Krzysztof Grajek (@grajo)
Futures in Scala Protips (part 5): Try more

Check out .transform() introduced in Scala 2.12 to allow running multiple Future transformations on the same ExecutionContext.
Viktor Klang (@viktorklang)
Zero-Overhead Tree Processing with the Visitor Pattern

The Visitor Pattern is one of the most mis-understood of the classic design patterns. While it has a reputation as a slightly roundabout technique for doing simple processing on simple trees, it is actually an advanced tool for a specific use case: flexible, streaming, zero-overhead processing of complex data structures.
Li Haoyi (@li_haoyi)
More Readable Code in Scala

A case study of code optimization for better readability and maintainability.
Mostafa Asgari (@mostafaasg)
Relearn your sbt

I think typical sbt introduction doesn't build mental model, that is helpful in a long run, so I described how one can think of sbt to make some sense out of it.
Mateusz Kubuszok (@MateuszKubuszok)
Akka anti-patterns: stateless actors

With the exception of actors that handle supervision for larger parts of your actor system hierarchy (setting up back-off supervisors, for example), actors are really meant to deal with long-lasting computation that holds state.
Manuel Bernhardt (@elmanu)
Futures in Scala Protips (part 6): Cancellation & Thread.interrupt()

And another part of the series, about adding interruptibility/cancellability.
Viktor Klang (@viktorklang)

PRESENTATIONS

Objects vs Data Structures - Part 1 - Equality in the World of Programming

In the previous few videos we started exploring the object-oriented world, but maybe we should not swim too far. In this video we discuss issues that arise from programming language dependent interpretations of object-orientation. This is the first of two videos in this series, which concentrates on issues with comparing two computational objects for equality and provides an outlook to the future of Scala.
DevInsideYou (@DevInsideYou)

EVENTS

Lambda World Seattle, September 17th - 18th

Use promo code STLW18 for Scala Times readers to get 10% discount!
47 degrees (@47deg)
Lambda World Cádiz, Spain, October 25th - 26th, 2018

Use promo code STLW18 for Scala Times readers to get 10% discount!
47 degrees (@47deg)
WIN a ticket to Scala Days New York

Simply send us a blog you have written that you would like featured on our website!
Signify Technology (@Signify_Tech)
LX Scala, Lisbon, Portugal, June 8th, 2018

The greatest Scala Conference in Southwest Europe. Use discount code lx_scala_times to get a 20% discount for our readers!
e.near (@enearportugal)
Scala Wave, September 6th - 8th, 2018, Gdańsk, Poland

Use code scalatimes_10, registration with special 10% off discount, to use on the conference day, ends on June 30th!
Scalac (@scalawavepl)
Scala in the City, June 27th, 2018, Brighttalk, London, UK

Our two speakers this month are Leszek Sliwko discussing Scala on 40-core HPC machine & Luka Jacobowitz discussing Oh, all the things you'll traverse.
Signify Technology (@Signify_Tech)

RELEASES

freestyle-rpc 0.13.5

Freestyle RPC is a purely functional library for building RPC endpoint based services with support for RPC and HTTP/2.
freestyle-rpc contributors
sttp 1.2.0-RC1

The Scala HTTP client that you always wanted! New version brings Scala.JS support, error to String deserialization, and a new multipartFile builder.
sttp contributors
squid 0.3.0

Squid (for the approximative contraction of Scala Quoted DSLs) is a metaprogramming framework that facilitates the type-safe manipulation of Scala programs.
squid contributors
sbt 1.1.6

Fixes written during Berlin Scala Spree. With some guidance, everyone in our diverse group was able to resolve a @scala_sbt issue within a couple of hours, including the initial setup needed only once.
sbt contributors

VARIA

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