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AppSignal Academy

AppSignal is all about building better apps. In our Academy series, we'll explore application stability and performance, and explain core programming concepts.

How to Monitor Your Host Metrics Automatically

By Stefan Verkerk on

Dive into Host Metrics the easy way and skip percussive maintenance.

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Getting Started With System Tests in Rails With Minitest

By Maud de Vries on

Dive into instances when generic methods are worth replacing with specific alternatives, illustrated by cleaning up strings.

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Rails is Fast: Optimize Your View Performance

By Swaathi Kakarla on

You'll learn some effective performance and optimization techniques that you can use to speed up your Rails app.

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How to Read Performance Metrics in AppSignal

By Robert Beekman on

Find out how AppSignal works, interpret the data it generates, and discover which metrics to keep an eye on to improve your application performance.

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Sidekiq Optimization and Monitoring

By Stefan Verkerk on

Where we look at lessons learned in monitoring and performance, and go through some things that seem simple at first, but turn out to be a bit more complex.

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The Inherited Hook Method in Ruby - and More Parenting Lessons

By Mehdi Farsi on

Today, we will explore the inherited hook method and dive into preventing inheritance

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Cleaning Up Ruby Strings 13 Times Faster

By Maud de Vries on

In this post we dive into when generic methods are worth replacing with specific alternatives. Illustrated by cleaning up strings.

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The Ultimate Checklist to Properly Internationalize Devise

By Maud de Vries on

The checklist I wish existed when I discovered the complexities of Internationalising Devise

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Up the Ancestor Chain with method_missing

By Mehdi Farsi on

In this post we'll follow a method and travel all the way up the ancestor chain

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Object Marshalling in Ruby

By Mehdi Farsi on

In this article, we’re going to dive into object marshalling, the Marshall module, and compare the `_dump` and `self._load` methods.

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Diving into Ruby's #dup and #clone

By Jeroen van Baarsen on

How #dup and #clone differ and how they work under the hood, triggered by a practical example.

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An instrumental intro to GraphQL with Ruby

By Peter Ohler on

We'll learn about GraphQL by making an application about music

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