Ruby On Rails

Tutorials

Collecting Prometheus metrics from multi-process web servers, the Ruby case | Michal Kazmierczak

Collecting Prometheus metrics from multi-process web servers, the Ruby case | Michal Kazmierczak In Prometheus, metrics collection must follow concrete rules. For example, counters must be either always monotonically increasing or reset to zero. Violating this rule will result in collecting nonsensical data.It is a challenge with multi-proces...

Appropriately using Ruby’s Thread.handle_interrupt

Appropriately using Ruby’s Thread.handle_interrupt Working on GoodJob, I spend a lot of time thinking about multithreaded behavior in Ruby. One piece of Ruby functionality that I don’t see written about very often is Thread.handle_interrupt. Big thanks to John Bachir and Matthew Draper for talking...

Roda Turbo Streams = ❤️ | Felipe Vogel

Roda Turbo Streams = ❤️ | Felipe Vogel I chose Roda because it’s simple and flexible, and the docs are great.I was already somewhat familiar with Roda from using Bridgetown, an app framework that leverages Roda to allow a hybrid static/SSR (server-side rendering) architecture. The poss...

Throttling Rails logins with Rack Attack | Greg Molnar

Throttling Rails logins with Rack Attack | Greg Molnar This week, I will show you how to rate-limit your authentication endpoints with Rack::Attack.Rack::Attack is a middleware for blocking or throttling requests based on rules. It uses the configured cache store of Rails to store the necessary data, ...

Speed up your Rack application with HTTP

Speed up your Rack application with HTTP If you’re like me, then you probably take application caching and performance improvements for granted because you rely on a web framework like Rails to do this for you. Although this level of abstraction is helpful, it can also obscure the underl...

Let's Implement the Map Method from First Principles

Let's Implement the Map Method from First Principles After writing the above post, I got a few emails asking me to explain how anonymous functions are different from regular functions and when to use them.In short, you know they are an important concept, and all the examples make sense, but you've n...

Rails Database Migrations Cheatsheet

Rails Database Migrations Cheatsheet Rails provides a ton of different ways to modify the database schema via Active Record migrations. It's a very powerful and flexible way to handle schema changes while keeping all updates under version control. However, all the migration methods, ...

How to stop Rails from setting a session cookie

How to stop Rails from setting a session cookie Recently I was working on a Rails API and I wanted to stop Rails from setting it's _session cookie for API requests.Since these requests are authenticated via an API token, there's no reason for the cookie to be returned to the user.

TIL: Turbo Stream and personalised content — Good Enough

TIL: Turbo Stream and personalised content — Good Enough Hotwire and Turbo are great for very quickly and easily adding real-time updating of webpages without requiring the browser to reload the whole page.But if the information you want to stream back from your server to the client has anything specifi...

Rails 7.1 enhances PostgreSQL enum functionality | Shakacode

Rails 7.1 enhances PostgreSQL enum functionality | Shakacode In Ruby on Rails, PostgreSQL provides an extension for defining enumerations, which allows you to specify a set of possible values for a column. This is useful when limiting your model's allowed values for a particular attribute.Apart from creatin...

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