Name: London Scala Talks: Francesco Cesarini and Tamer Abdulradi
Start: 2018-10-09T18:30:00+01:00
End: 2018-10-09T21:00:00+01:00

We're delighed to be joined this month by two fantastic speakers: Francesco Cesarini of Erlang Solutions and Tamer Abdulradi of Disney Streaming Services.

Join us for an inspirational evening of distributed systems and recursion schemes!

**Please sign up for this event on the Skills Matter web site using the following link:**

https://skillsmatter.com/meetups/11288-london-scala-users-group

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Francesco Cesarini: Immutability for scale and reliability

The functional paradigm has been influencing mainstream languages for decades, making developers more efficient whilst helping reduce maintenance costs. As we are faced with a programming model that needs to scale on multi-core architectures and distributed environemnts, concurrency becomes critical. In these concurrency models, immutability, a key feature of functional programming paradigm will become even more evident. To quote Simon Peyton Jones, future concurrent languages will be functional; they might not be called functional, but the features will be. In this talk, we explain why!

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Francesco is the founder of Erlang Solutions Ltd. He has used Erlang on a daily basis since 1995, starting as an intern at Ericsson's computer science laboratory, the birthplace of Erlang. He is also the co-author of 'Erlang Programming' and 'Designing for Scalability with Erlang/OTP' both published by O'Reilly and lectures at Oxford University.

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Tamer Abdulradi: Recursion Schemes: How to Factor Recursion Out of Your Codebase

Recursion is hard! But luckily you can "get it right" once and reuse it in other projects.

Recursion schemes is a code pattern that allows you to automate the process of traversing and recursing through nested data structures by separating recursion out of the rest of the logic. They allow you to use off-the-shelf libraries to do the recursion for you, so you can write less code and potentially fewer bugs!

In this talk, Tamer will share with you an example, a JSON data-structure, walk-through a step-by-step transformation of the code to use a recursion schemes library. By attending you will understand the gist of Recursion Schemes and how to use it in your codebase.

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Tamer is a Senior Software Engineer at Disney Streaming Services, building and maintaining distributed systems armed with nothing but Scala, types and the power of functional programming. He is the author of Troy, a type- and schema-safe interface to Cassandra (https://github.com/schemasafe/troy), and has a general fascination with all kinds of functional and type level programming.

Zainab Ali

London Scala User Group

Technology

Scala

Java

Functional Programming

Akka

Play Framework

London Scala Talks: Francesco Cesarini and Tamer Abdulradi

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