Ruby On Rails

Tutorials

Exporting significant SQL reports with ActiveRecord

Exporting significant SQL reports with ActiveRecord A few months ago we faced a memory issue on some of our background jobs. Heroku was killing our dyno because it was exceeding its allowed memory. Thanks to our instrumentation of Sidekiq, it was easy to spot the culprit. The job was doing a fairly...

Rails Console Magic Tricks

Rails Console Magic Tricks Seven techniques to increase the developer experience during a Rails Console session. Please note that some of them will come from Ruby itself, and thus won’t be necessarily restricted to.

Build a collaborative playlist over WhatsApp with Rails, Twilio, and Spotify - Twilio

Build a collaborative playlist over WhatsApp with Rails, Twilio, and Spotify - Twilio Sharing music over playlists is a great way to discover new and old music. Spotify has collaborative playlists, but I don't like how they let your friends re-order and delete songs from the list. We can fix this by building our own collaborative p...

Security tips for rails apps

Security tips for rails apps As your application gets larger and larger, the surface area for security issues expands accordingly, and security bugs become more and more problematic.

Rails Rspec 3 View Test Examples

Rails Rspec 3 View Test Examples I use Rspec View for testing required html tags, required partial, or conditional in html. Here are some examples View specs with Rspec 3.7.

How to Do Web Scraping with Ruby?

How to Do Web Scraping with Ruby? Wondering how to make a web scraper? We have prepared an informative guide of scraping the web with Ruby on Rails.

SidekiqLogAnalyser gem allows to see summary of your sidekiq workers (based on log file).

SidekiqLogAnalyser gem allows to see summary of your sidekiq workers (based on log file). SidekiqLogAnalyser gem allows to see summary of your sidekiq workers (based on log file).

The Curious Incident of the Shadow in the Run-Time

The Curious Incident of the Shadow in the Run-Time Coding in Ruby is full of sweetness and light, but where there is light, shadows are cast.

Using Lambdas to Simplify Varying Behaviors in Your Code

Using Lambdas to Simplify Varying Behaviors in Your Code Lambdas are anonymous (unnamed) functions. Unlike methods in object oriented programming languages, lambdas are not bound to any object.

Scaling at Instacart: Distributing Data Across Multiple Postgres Databases with Rails

Scaling at Instacart: Distributing Data Across Multiple Postgres Databases with Rails I love a good challenge and at Instacart we have lots of exciting challenges. I work on the Shopper Success team, tasked with making shopping and delivering groceries to our customers a good.

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