Recommended : Rich Hickey Introduces Transducers to Clojure

In a blog post, Rich Hickey introduced transducers.  Transducers “are a powerful and composable way to build algorithmic transformations that you can reuse in many contexts”.  It is worth reading this two articles :

rhtransducersand

rhreducersAnd if you want more on Clojure transducers, people are already looking at what this means.

understandtransducers

and here is a write-up of some some examples :

trivialextransducers

 

 

Recommended Video : Clojure Inside Out

clojureinoutO’Reilly offers a nice for-sale video, Clojure Inside Out. They offer a 33 minute free introduction which offers a really nice introduction to Clojure software development. Stuart Holloway and Neal Ford provide a really nice look at Clojure looking at data, code, functions, abstraction, concurrency, JVM interoperability and integration. O’Reilly’s description of the video :

“Neal Ford (software architect and meme wrangler at ThoughWorks) and Stuart Halloway (CEO of Relevance, Inc.) show you what makes programming with Clojure swift, surgical, and accurate. Clojure compiles to many target environments, including the JVM, JavaScript, and the .NET CLR, and you’ll quickly get up to speed on its syntax, ecosystem, and libraries. Then Ford and Halloway take you much deeper into the language, while keeping the focus on practical application:

– Learn how to leverage macros to solve real problems

– Discover how Clojure helps you manage time

– Understand why functional programming is important

Clojure represents a vision for building software that could only be implemented by building a new language. You’ve heard the hype, now come learn the facts on the ground.”

The link below will take you to the 33 minute free video. cljrinoutvideo

Recommended Reading : Two Reads on Building Apps in Clojure

In case you missed this comment on Clojure from Adrian Cockroft :

The really cool things I’m seeing being built, some of them are in Go, and the other one is Clojure. A lot of the best programmers and the most productive programmers I know are writing everything in Clojure and swearing by it, and then just producing ridiculously sophisticated things in a very short time.”  From thenewstack.io

 

I bumped into two articles, the first is a nice write-up by a Rails-developer trying out Clojure (and loving it).  He writes 5 recommendations when developing Clojure Web apps.

natescottwest

The second article provides a how-to build single page app with CouchDB and Clojure.

cljrcouchdb

 

 

Recommended Reading : Microservices Architectures and Clojure (A Quick Survey of Resources)

Increasingly people are describing micro services as small services with specific functions to create a larger application – they often have intelligence in the endpoints, automatation in deployment and lack of dependency on any specific language. There is a very nice description of this approach written by James Lewis and Martin Fowler. You can read more of it here :
screenshot_295

A counter-position or cautionary position was recently written by Benjamin Wooton which is also worth reading.

hiscale06

And in InfoQ, Chris Richardson offers some details on decomposing applications into micoservices.

infoQ1001

In the Clojure community there are some examples of how this is being used. Let’s start with three recent articles (the first one from a Ruby shop experimenting with Clojure) :

karma

smashcompany

herecomessun

and the following description one developer’s views on a Microservice Clojure stack.

cljrmservices

In addition, here is a way to integrate Unix (micro)services with Clojure into all of this :

cljunixsvcs