AppSignal Blog

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

New: Nth Error per Hour/Day Notifications in AppSignal
AppSignal

New: Nth Error per Hour/Day Notifications in AppSignal

We're launching a new notification setting that will help you get the right notifications at the right time.

By Wes Oudshoorn on

LiveView Assigns: Three Common Pitfalls and Their Solutions
Elixir

LiveView Assigns: Three Common Pitfalls and Their Solutions

Let's take a look at three common LiveView assigns issues you might come across and how to fix them.

By Karol Słuszniak on

AppSignal’s Next Level Of Front-end Error Tracking
AppSignal

AppSignal’s Next Level Of Front-end Error Tracking

We've launched line-of-code-based error grouping and sourcemapped backtraces in notifications.

By Thijs Cadier on

State Machines in Ruby: An Introduction
Ruby

State Machines in Ruby: An Introduction

Let's build a simple state machine in Ruby and use the state machines gem.

By Pulkit Goyal on

AppSignal for Phoenix 2.1: Automatic LiveView Instrumentation
AppSignal

AppSignal for Phoenix 2.1: Automatic LiveView Instrumentation

We're very excited to release AppSignal for Phoenix 2.1, which adds automatic instrumentation for LiveView through Telemetry.

By Jeff Kreeftmeijer on

Recommended AppSignal Setup
AppSignal

Recommended AppSignal Setup

We're helping first-time users to get the most out of AppSignal.

By Wes Oudshoorn on

How to Handle Errors in React
JavaScript

How to Handle Errors in React

Let's look at the various ways you can handle React errors.

By Nikola Đuza on

A Guide to Phoenix LiveView Assigns
Elixir

A Guide to Phoenix LiveView Assigns

Let's demystify LiveView assigns and see how they work in practice.

By Karol Słuszniak on

Add Feature Flags in Ruby on Rails with Flipper
Ruby

Add Feature Flags in Ruby on Rails with Flipper

Find out how feature flags function in principle and get started with feature flags using the Flipper gem.

By Hans-Jörg Schnedlitz on

Adding Redis & MySQL to AppSignal for Node.js with OpenTelemetry
AppSignal

Adding Redis & MySQL to AppSignal for Node.js with OpenTelemetry

Today, we launch 4 new integrations for Node.js: Redis, ioredis, MySQL, and MySQL2.

By Tom de Bruijn on

Build a Data Access Layer with PostgreSQL and Node.js
JavaScript

Build a Data Access Layer with PostgreSQL and Node.js

Find out how to create a Data Access Layer that communicates to PostgreSQL through Node.js

By Camilo Reyes on

Algebraic Data Types in Elixir
Elixir

Algebraic Data Types in Elixir

Discover the ins and outs of ADTs and their benefits for your Elixir app.

By Gints Dreimanis on

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AppSignal monitors your apps

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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