General
How We Improved Table Performance in AppSignal - Back-end Changes
How we optimized our back-end and prevented GraphQL API timeouts to improve the performance of our tables.
General
Improvements Made to AppSignal for Node.js in 2022
AppSignal's Node.js integration is in a state of constant improvement. Check out the latest fixes and additions.
General
The Wolf Pack Tactic for Monitoring Slow APIs
In this post, we will deal with monitoring external APIs and how you can prevent them from slowing you down.
General
Uptime Monitoring: A One-week Project, a Decade In the Making
In today's post, we'll explain how we went from considering uptime monitoring impossible to build, to building it in a week.
General
AppSignal Now Monitors Koa and All Your Cascading Middleware
AppSignal now monitors Koa! This Node.js framework enables you to use cascading middleware, which can now also be shown in AppSignal.
General
Engineering for Performance: Ghost Queries
Using Ghost Queries to test a new system/database in production with no worry of errors or downtime.
General
How AppSignal Monitors Their Own Kafka Brokers
We dip our toes into collecting custom metrics for our Kafka brokers by using the standalone AppSignal agent.
General
Git is About Communication
Git is a way to communicate with your team. Well written commits and Pull Requests ensure that this communication goes smoothly.
General
Performance and N+1 Queries: Explained, Spotted, and Solved
In this post, we'll look into N+1 queries in a language-agnostic way.
General
Dissecting Rails Migrations
Let's break down a migration process and find out how to write an effective migration.
General
The Citadel Architecture at AppSignal
Check out how AppSignal uses the Citadel pattern and how our system works.
General
What's The Difference Between Monitoring Webhooks and Background Jobs
In which we explain how to set up different monitoring for apples and pears in your architecture.
More articles
- Building a Rails App With Multiple Subdomains
- How to Monitor Your Host Metrics Automatically
- JavaScript Errors: An Exceptional History - Part II
- Sidekiq Optimization and Monitoring
- JavaScript Errors: An Exceptional History
- How We Tracked Down an Exception Without Errors: A Detective Story
- Ruby Templating: Baking an Interpreter
- Migrate to our new Slack App!
- The Inherited Hook Method in Ruby - and More Parenting Lessons
- New Sample Page Graphs and Navigation
- Type Checking in Ruby — Check Yo Self Before You Wreck Yo Self
- Cleaning Up Ruby Strings 13 Times Faster
- Multiplayer Go with Elixir's Registry, PubSub and dynamic supervisors
- Digging Deeper into Ruby Templating: The Parser
- JavaScript Iterators and Iterables
- Productive Procrastination for Programmers - works for Ruby and Elixir
- Building the Go Game in Elixir - Time Travel and the Ko Rule
- Brewing our own Template Lexer in Ruby
- Building and Playing the Go Game with Phoenix LiveView
- The Ultimate Checklist to Properly Internationalize Devise
- Inside Enumeration in Ruby
- Kafka and Ruby, a Sidekiq Lovestory
- Iteration, Recursion, and Tail-call Optimization in Elixir
- Diving into Ruby's #dup and #clone
- Unraveling Classes, Instances and Metaclasses in Ruby
- An instrumental intro to GraphQL with Ruby
- Serving Plug - Building an Elixir HTTP server from scratch
- Bindings and Lexical Scope in Ruby
- Don't be mean: Statistical means and percentiles 101
- Understanding Elixir’s GenStages - Querying the Blockchain
- Testing Asynchronous Threads in Ruby
- Building a Ruby C Extension From Scratch
- The innards of a RubyGem
- Hot Code Reloading in Elixir
- ActiveRecord vs. Ecto Part Two
- The Magic of Class-level Instance Variables
- ActiveRecord vs. Ecto Part One
- #to_s or #to_str? Explicitly casting vs. implicitly coercing types in Ruby
- How OTP Applications are structured
- Differences Between #nil?, #empty?, #blank?, and #present?
- Closures in Ruby: Blocks, Procs and Lambdas
- Lists vs Tuples in Elixirs
- Rails Collection Caching
- Ruby Magic Summer Special: The Best of AppSignal Academy
- Parsing Numbers in Elixir
- JavaScript-sprinkled Rails Applications
- Under the Hood: “Slurping” and Streaming Files in Ruby
- Custom Exceptions in Ruby
- Caching counters with ActiveRecord's counter caches
- Deconstructing Elixir's GenServers
- Ruby's redo, retry and next keywords
- Ruby's magical Enumerable module
- Speeding up your app’s navigation with Turbolinks
- Ensuring execution, retrying failures and reraising exceptions in Ruby
- Client-side caching in Rails: conditional GET requests
- ActiveRecord performance: the N+1 queries antipattern
- Post-mortem: April 19th, 2018
- Rails' built-in cache stores: an overview
- New GitHub integration
- Rescuing exceptions in Ruby
- Russian doll caching in Rails
- Understanding system load and load averages
- Fragment caching in Rails
- Exceptions in Ruby
- Understanding CPU statistics
- Benchmarking Ruby Code
- Inspecting data in Ruby
- Syntactic sugar methods in Ruby
- Debugging exceptions in Rails
- Reading and understanding Ruby stack traces
- Track cache hits with custom metrics
- Supervisors: Building fault-tolerant Elixir applications
- A look at how Ruby interprets your code
- Concurrency Deep Dive: Event loops
- Demystifying processes in Elixir
- Concurrency Deep Dive: Multi-threading
- Concurrency Deep Dive: Multi-process
- Running Rack: How Ruby HTTP servers run Rails apps
- Escaping characters in Ruby
- Building a 30 line HTTP server in Ruby
- Rescuing Exceptions in Ruby: A Primer
- Rebasing a complex branch in Git
- How to tame your growing users table
- Introduction to Garbage Collection (Part II)
- Introduction to Garbage Collection (Part I)
- Monitor MongoDB (query) load with Custom Metrics
- Upgrading to Mongoid 5 / mongo-ruby-driver
- Mastering Concurrency
- How to use custom metrics
- Event type graphs
- Gem version 0.11.13 released
- Custom notifications with Zapier
- Handling VAT with Stripe: Follow up
- Handling VAT with Stripe
- Vastly improve performance for MongoDB, Mongoid and Sidekiq
- Realtime graphs from MongoDB with aggregations
- AppSignal API
- Taming our MongoDB database size.
- A quick post about reducing MongoDB queries
- Filtering sensitive data from params
- jQuery toggle() is slow, JavaScript to the rescue
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!
