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MongoDB Scala Drivers Microbenchmark: ReactiveMongo vs Scala/Java Driver

If you want to connect your Scala application to MongoDB you have two choices, really. You can use the official driver, which comes in two flavors (Java Async Driver or Scala driver, which is just a facade with RxScala API). Alternatively you can go with ReactiveMongo, a completely new approach built on top of Akka. […]

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Keep Your Library Simple: Scala API Design Case Study

We’ve been using Play Framework with Elasticsearch and elastic4s for a while. Getting it all to work together requires some boilerplate code, though. We decided to create a small library that would make things easier in future projects. We learned some lessons about building Scala libraries along the way.

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Practical Intro to Monads in JavaScript

If you’ve heard about Monads but never had time learn them, here’s a simple explanation. Not a theoretical nonsense. It’s a simple, practical tutorial for JavaScript developers showing how some monads can be used. It’s for engineers, not scientists.

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Overcoming Pre-Commit Code Review Challenges

Pre-commit code review can provide some tremendous benefits: It improves quality of the final code, it helps team members to learn from each other. It also propagates knowledge about projects and best practices. But it also generates additional problems. Here’s how we dealt with them. Pre-Commit Code Review at Evojam In short – every code […]

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Static Typing in JavaScript & Best Tools to Do It

There are three popular possibilities – jsDoc (with e.g. Google Closure Compiler), Facebook Flow and Microsoft TypeScript. First one uses comment like annotations – does not corrupt pure JS – while next two extend JS so they have to be transpiled. I will compare them briefly in a moment.

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Contract First REST API Design – How It’s Different & What Are The Benefits

We’re mostly building web applications these days. Even standalone apps have their UI layer written as a single page app in JS and communicate with their backend using REST. Let’s explore the process of designing the REST API for such an app. First, let’s see how a single endpoint description could look like: Update a […]

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Before You Build A Web App – Pre-development REST Checklist

The abundance of all the tools and resources makes building web applications seemingly effortless. The framework will handle the routing, the library will process the requests and the template engine will take care of any UI you need. This is all very convenient, but it doesn’t deal with the greatest risk of all: having your […]

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Open Source Async MongoDB driver for Scala & Play Framework (early version)

UPDATE: This driver is no longer developed. Our recent microbenchmarks show that the current versions of Java driver are no longer inferior in terms of speed. There is even an official Scala driver, which is really just a small facade built on top of the async Java driver. Rationale behind this decision can be found […]

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API landscape 2015: Swagger, Hypermedia & Microservices

Joint conferences API Days and API Strategy & Practice took place during the last weekend in  Berlin. We’ve had the pleasure of spending great time with the people at the epicenter of the exploding API ecosystem. Read to learn what are the hot topics and possible implications for your apps. API explosion With the continued march of mobile platforms, accelerated by […]

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Glimpse at the State of Functional Programming

Recently, our whole backend team visited Lambda Days – The Functional Programming Conference. Two days, multiple presentation tracks, lobby and pub talks gave our five agents unique glimpse into the state of the functional programming ecosystem. The conference scope covered several functional languages – Erlang, Haskell, Clojure, Lisp, OCaml – which gave us a broader context to what […]

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