Akka Streams: Is it a Solution to Your Streaming Problems?

October 16, 2018October 16, 2018Akka, akka-streams, Java, Scala, Streaming, Streaming SolutionsAkka actor, akka-streaming, broadcasting, Data Flow Graphs, scala, Streams

A few days earlier, in our project, we were using Spark streaming and initially, it worked like a charm. But as we were very close to completion of our use case, the unexpected occurred. Spark does have a lot of interesting features, but we had some more custom needs such as running a ton of varying jobs with different actors/flows. Also, we needed something which Continue Reading

Introduction to Akka Streams – Part 1

October 15, 2018October 16, 2018Akka, akka-streams, ScalaAkka actor, akka-streams, back2basics, Getting Started

Akka Streams is a library that is used to process and transform a stream of data. In this blog, I’ll be discussing the components of Akka Streams. Akka Streams is an implementation of Reactive Streams and uses bounded buffer space, and this property is known as boundedness. To use Akka Streams, add the below dependency in your build.sbt:

Trying to use form field and file upload directive together in Akka-Http?

October 1, 2018October 1, 2018Akka, akka-http, akka-streams, Scalaakka-http, scala

If you are reading this then probably you have encountered the issue that comes while accessing fields with uploading a file, and if not then let me first tell you what’s the situation that I’m talking about here, Let’s see the code where we try to use fileUpload directive and formFields together

Akka http with json4s

June 21, 2018August 8, 2018Akka, akka-http, akka-streams, Future, github, Scala, scalatest, Tutorial

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.

Stream a file to AWS S3 using Akka Streams (via Alpakka) in Play Framework

May 4, 2018July 23, 2018Akka, akka-streams, Play Framework, ScalaAkka, akka-streams, alpakka, amazon web services, AWS, aws s3, File Transfer, File upload, Play framework, Reactive Programming, reactive streams, Streaming

In this blog post we’ll see how a file can be streamed from a client (eg: browser) to Amazon S3 (AWS S3) using Alpakka’s AWS S3 connector. Aplakka provides various Akka Stream connectors, integration patterns and data transformations for integration use cases. The example in this blog post uses Play Framework to provide a user interface to submit a file from a web page directly to Continue Reading

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