AppSignal Blog

AppSignal APM combines performance monitoring and error tracking in one clear interface. For Ruby (on Rails), Elixir and Node.js.

How To Reduce Reductions in Elixir
AppSignal

How To Reduce Reductions in Elixir

Discover how you can use profiling in Elixir to improve how your application code performs.

By Jeff Kreeftmeijer on

An Introduction to LiteStack for Ruby on Rails
Ruby

An Introduction to LiteStack for Ruby on Rails

In the first part of this series, we'll set up an example Rails application and introduce the basics of LiteStack.

By Julian Rubisch on

An Introduction to Exceptions in Elixir
Elixir

An Introduction to Exceptions in Elixir

Let's dive into how you can handle exceptions in Elixir.

By Pulkit Goyal on

An Introduction to Sidekiq for Ruby on Rails
Ruby

An Introduction to Sidekiq for Ruby on Rails

Let's explore how we can use Sidekiq to manage and process background jobs in a Rails application.

By Jeff Morhous on

When to Use Playwright Over Puppeteer in Node.js
JavaScript

When to Use Playwright Over Puppeteer in Node.js

We'll take a look at how Playwright beats Puppeteer in terms of functionality and performance.

By Antonello Zanini on

Phoenix 1.7 for Elixir: Edit a Form in a Modal
Elixir

Phoenix 1.7 for Elixir: Edit a Form in a Modal

In the final part of our series, we'll implement an edit modal.

By Adam Lancaster on

An Introduction to RuboCop for Ruby on Rails
Ruby

An Introduction to RuboCop for Ruby on Rails

Let's dive into what RuboCop is, how it helps developers, how to use it, and some key practical use cases.

By Thomas Riboulet on

Job Schedulers for Node: Bull or Agenda?
JavaScript

Job Schedulers for Node: Bull or Agenda?

Let's look into the benefits and drawbacks of two popular job schedulers for your Node.js app: Bull and Agenda.

By Omonigho Kenneth Jimmy on

Tracking Errors in a Node.js Application
JavaScript

Tracking Errors in a Node.js Application

Let's track errors in our Node.js application in a convenient, automated, and safe way.

By Rishabh Rawat on

Writing a Custom Credo Check in Elixir
Elixir

Writing a Custom Credo Check in Elixir

Let's run through the process of creating a Credo check in Elixir.

By Paweł Świątkowski on

Secure Your Ruby App with JSON Web Tokens
Ruby

Secure Your Ruby App with JSON Web Tokens

Find out how you can use JWT authentication to secure your Ruby application.

By Emmanuel Hayford on

Pitfalls to Avoid in Playwright for Node.js
JavaScript

Pitfalls to Avoid in Playwright for Node.js

We'll cover the seven most common mistakes you should avoid when working with Playwright.

By Antonello Zanini on

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AppSignal provides insights for Ruby, Rails, Elixir, Phoenix, Node.js, Express and many other frameworks and libraries. We are located in beautiful Amsterdam. We love stroopwafels. If you do too, let us know. We might send you some!

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