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October 31st, 2019, ISSUE 298

READING

Scala application lifecycle, from pure Scala to FS2

The full process of development - including the initialization and shutdown of the Scala app.
Michał Matłoka (@mmatloka)
Top 5 things that slow down your Scala build - Triplequote

Scala builds are a little bit slow, but don't blame the compiler.
Iulian Dragoș (@jaguarul)
ZIO, Http4s, Auth, Codecs and zio-test

Examples of use of ZIO with the http4s library, illustrating http4s authentication, custom codes and testing with zio-test.
Tim Pigden
Magnolia typeclass generation for Avro

Examples of use of magnolia library to generate schema, reader and writer typeclasses for Avro serialization.
Tim Pigden
Bird Operator in Scala

How to chain methods together in a pretty way?
Leo Benkel (@LeoBenkel)
Functional dependency injection in Scala using ZIO environments

A recipe how to cope with the R part of a ZIO[R, E, A]: the Environment.
Chiel van de Steeg (@cvdsteeg)
"Functional Programming in Scala" and other great Manning books with a special discount!

An exclusive discount for our readers! Use promo code nltimes40 and get a 40% discount for all Manning products in any format!
Manning Books (@manningbooks)
A Guide to Scala 3

The most notable new features of Scala 3.
Muhammad Tabaza (@Tabz_98)
Property testing of Isomorphisms: way easier than it sounds!

A presentation of the full process of defining an isomorphic relationship among two types and testing it.
Manuel Rodríguez
State Storage in Spark Structured Streaming

A deep-dive into techniques of working with state storage in Apache Spark version 2.4.4 via Structured Streaming APIs in Scala.
Ivan Trusov
A simple integration test using Scala and ZIO

How can you run an integration test to see if your application starts up properly?
Chiel van de Steeg (@cvdsteeg)
Did Netflix just kill Databricks with releasing Polynote for free?

Do we really need another Notebook type?
Brian Ray (@brianray)
Firsthand Experience with Polynote - A Better Notebook for Data Engineers

Let’s try Polynote with a classic example of the code written in Spark.
Lim Yow Cheng
One step closer: exploiting locality in Akka Cluster based systems

The latency of processing a request in a distributed system is the most expensive thing you can do.
Manuel Bernhardt (@elmanu)

PRESENTATIONS

Scala Clippy - Crash Course

In this video we will learn about Scala Clippy - a Scala compiler plugin which enhances your error messages with useful advices.
DevInsideYou (@DevInsideYou)

EVENTS

Code Mesh, London, November 7th - 8th

Get your tickets now!
CodeMesh (@CodeBEAMio)
Motivating Scala, November 20th, Reston, VA (USA)

Tyler Horton, Principle Software Engineer, will present Motivating Scala. There will be opportunities for networking and asking questions before and after the presentation.
Scala DC - MD - NOVA
BeeScala with 30% discount, Ljubljana, Slovenia, November 21st - 21rd

Use promo code scalatimesfriend to get a 30% discount for Scala Times subscribers!
BeeScala (@BeeScalaConf)
Tech Triveni, IIC Delhi, India, November 23rd - 24th

Grab special 10% discount code for Scala Times readers: TechTriveni10
Tech Triveni
ScalaConf.ru, Moscow, Russia, November 26th

Get ready for this exceptional event in Russia!
ScalaConf.ru
Lambda Days, February 13th -14th 2020, Kraków, Poland

Call for talks and very early bird tickets are both open! Full paper submission by November 15th, draft paper submission by January 13th (we strongly suggest the first deadline).
Lambda Days (@LambdaDays)
ScalaUA, April 3th-4th, 2020 Kyiv, Ukraine

CFP is on! Also: Super Early Bird tickets are available on website till 2019.12.31, and Wholesale 10+ tickets are available till 2020.04.02.
ScalaUA (@ScalaUA_Conf)

VARIA

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