AppSignal Blog

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

The Angular Signals Revolution: Rethinking Reactivity
JavaScript

The Angular Signals Revolution: Rethinking Reactivity

In this first part of a three-part Angular Signals series, we'll take a fresh look at Signals from the perspective of someone building real-world apps.

By Sonu Kapoor on

AppSignal Launch Week Recap
AppSignal

AppSignal Launch Week Recap

Catch up on everything we launched during our very first Launch Week.

By Connor James on

Structs and Embedded Schemas in Elixir: Beyond Maps
Elixir

Structs and Embedded Schemas in Elixir: Beyond Maps

Let's dive into the ins and outs of structs and Ecto schemas.

By Nikola Begedin on

Scheduling Background Tasks in Python with Celery and RabbitMQ
Python

Scheduling Background Tasks in Python with Celery and RabbitMQ

We'll build background tasks using Celery and RabbitMQ to create a weather notification service.

By Daniel Easterman on

Smooth Async Transitions in React 19
JavaScript

Smooth Async Transitions in React 19

We'll explore how async transitions in React 19 enable non-blocking form experiences.

By Raju Dandigam on

How to Use Redis with Python
Python

How to Use Redis with Python

We'll learn how to use Redis in Python with a step-by-step tutorial.

By Federico Trotta on

Tracking Errors in Absinthe for Elixir with AppSignal
Elixir

Tracking Errors in Absinthe for Elixir with AppSignal

Learn how to use AppSignal to monitor, debug, and resolve errors in your Absinthe-based GraphQL API.

By Aestimo Kirina on

Extend ActiveStorage for Ruby on Rails with Custom Previewers
Ruby

Extend ActiveStorage for Ruby on Rails with Custom Previewers

We'll dive into how ActiveStorage handles uploaded data and how to extend this process in the second part of this two-part series.

By Julian Rubisch on

Monitor the Performance of Your Node.js Fastify App with AppSignal
JavaScript

Monitor the Performance of Your Node.js Fastify App with AppSignal

Let's identify some key performance indicators for a Fastify application and use AppSignal to measure our app's performance.

By Damilola Olatunji on

Get the Full Picture: AppSignal Adds OpenTelemetry Support
AppSignal

Get the Full Picture: AppSignal Adds OpenTelemetry Support

We're proud to launch OpenTelemetry. Learn how to use AppSignal's monitoring and observability toolkit to level up your app's performance.

By Connor James on

Deploy a Python Flask App to Render with Docker
Python

Deploy a Python Flask App to Render with Docker

Let's build and optimize a Flask app for deployment to Render using Docker.

By Daniel Easterman on

Understanding Stack Traces in Elixir
Elixir

Understanding Stack Traces in Elixir

Let's explore the fundamentals of stack traces in Elixir, how to read and interpret them, and some best practices for debugging and error handling.

By Allan MacGregor 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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