Ruby On Rails

Tutorials

Fear-free PostgreSQL migrations for Rails

Fear-free PostgreSQL migrations for Rails As anyone who reads our engineering posts will quickly learn, Postgres at GoCardless. It’s our database of first resort, and it backs our main API monolith, which means we trust it very much, even when things - as they inevitably do.We like P...

Getting Started with Elasticsearch and Ruby

Getting Started with Elasticsearch and Ruby Recently, DEV has started the migration from Algolia to Elasticsearch. Since I am often asked what is the best way to get started with Elasticsearch, I figured I would share how we have been making the switch. Hopefully, you can use this post as a...

A11Y in Rails: Automated Linting with AccessLint

A11Y in Rails: Automated Linting with AccessLint AccessLint brings automated web accessibility testing into your development workflow. When a pull request is opened, AccessLint reviews the changes and comments with any new accessibility issues, giving you quick, timely, and targeted feedback, be...

Syntax Highlighting with Action Text

Syntax Highlighting with Action Text Drifting Ruby Screencasts is a collection of short tutorial screencast videos and documentation for accomplishing functional concepts in web.Set up Action Text with client side Syntax Highlighting using Highlight.js.

A Secret Weapon For Your Rails Apps - RPC with RabbitMQ and Hutch

A Secret Weapon For Your Rails Apps - RPC with RabbitMQ and Hutch Communication between two or more applications is often everyday stuff, and it might seem that there is not too much to add there as this subject has been covered pretty well in the last years. Thanks to that, multiple patterns and standards have ...

Compiling latest Ruby from scratch with chruby

Compiling latest Ruby from scratch with chruby Since chruby officially does not support compiling latest Ruby (HEAD), here are the steps necessary to do it.Current HEAD version of Ruby is 2.8.0dev, so that's the version being compiled in this example. The only thing necessary for your custom c...

Converting Unix epoch timestamps to Ruby objects

Converting Unix epoch timestamps to Ruby objects This timestamp is the number of seconds that have elapsed since the Unix epoch, that is the time 00:00:00 UTC on 1 January 1970, minus leap seconds. In Ruby, if we want to get unix time for current time, it is very easy.

Benchmarking Ruby 2.7.0's Numbered Parameters

Benchmarking Ruby 2.7.0's Numbered Parameters Ruby 2.7.0 added numbered block parameters. There was some controversy which resulted in the initial syntax of @n changing to _n. I like the change.This is what it looks like:.

Hanami::API on Amazon AWS Lambda

Hanami::API on Amazon AWS Lambda Today, we’re gonna deploy a small service on Amazon AWS Lambda. It’s an Amazon AWS product that allows to deploy an autoscaling HTTP service. You are charged for every 100ms your code executes and the number of times your code is triggered. Having...

Ruby 2.7 introduces numbered parameters as default block parameters

Ruby 2.7 introduces numbered parameters as default block parameters Ruby 2.7 introduces a new way to access block parameters. Ruby 2.7 onwards, if block parameters are obvious and we wish to not use absurd names like n or i etc, we can use numbered parameters which are available inside a block by default.We can us...

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