Future

map(), flatMap() on Futures & Options in scala

In this blog, we would be looking at how map() and flatMap() operations work with Option and Future of scala, literally speaking both Futures and Options are very effective features of scala, A Future lets us have a value from some task on a…

Akka http with json4s

Akka Http uses the spray-json library for JSON support. But a few days back while working on a project which was using the json4s library for marshalling/unmarshalling, I got stuck during parsing of JSON request and extracting that parsed values into my target Scala data model.

Future vs. CompletableFuture in Java- #2

In our previous blog — Future vs. CompletableFuture — #1, we compared Java 5’s Future with Java 8’s CompletableFuture on the basis of two categories i.e. manual completion and attaching a callable method. Now, we will be comparing them on the basis of next 3…

Future vs. CompletableFuture — #1

This is Part 1 of Future vs. CompletableFuture. In this blog we will be comparing Java 5’s Future with Java 8’s CompletableFuture on the basis of two categories i.e. manual completion and attaching a callable method.

What is…

Scala, Couchbase, Spark and Akka-http: A combinatory tutorial for starters

Couchbase and Apache Spark are best so far , for the in-memory computation. I am using akka-http because its new in the business. If you are not a big fan of akka-http and don’t think it is yet ready…

Scala Future Under The Hood

In the previous post, i was discussing about Scala ExecutionContext. As we know, for multithreading we need to maintain thread pools using ExecutionContext and by default ForkJoinPool is used because for accessing “multi core” processor. There are multiple thread pools are…

Getting Asynchronous in Scala : Part 2 (macro, reflection and Async library)

“Our patience will achieve more than our force.” — Edmund Burke

The thought above tells about the beauty of being patient. One of the most important trait of a programming…

Scala Macros -An overview

OVERVIEW

In this blog we will understand the basics of Macros and reflection. The main motive of the blog is to lay a foundation for better understanding of the the ‘Async library’.

The ‘MAGIC’ of macros ->

Knolx: Effective way to code in Scala

In this presentation, we are going to discuss about how to write effective code in Scala and also talk about Scala ExecutionContext and how create own ExecutionContext.

File upload using akka-http in Scala

Lets begin with some introduction of Akka-http first.

Akka HTTP is a layer to expose Actors to the web via HTTP and to enable them to consume HTTP services as a client. It is not an HTTP framework, it is an Actor-based toolkit for…