The Honeybadger Developer Blog
Tutorials, product info, and good advice from the Honeybadger crew.
Using lazy enumerators to work with large files in Ruby
Files are just large collections of lines or characters. Lazy enumerators make it possible to to some very interesting and powerful things with them.
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By Starr Horne
- Aug 10, 2015
Benchmarking exceptions in Ruby - yep, they're slow.
Just how much slower are exceptions than other flow control mechanisms? In this post we use a simple benchmark to find out.
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By Starr Horne
- Aug 6, 2015
Honeybadger now supports causes / nested exceptions
Ruby 2.1 and later support nested exceptions via the Exception#cause method. Now you can view these for any error reported to Honeybadger. This post gives a brief introduction to exception causes in Ruby, and shows you what they look like in the Honeybadger UI.
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By Starr Horne
- Aug 5, 2015
How to raise any object as a Ruby exception
It's a common misconception that the raise method only accepts exceptions as its argument. This post will show you how you can raise ANYTHING, including numbers, dates, and your own custom classes.
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By Starr Horne
- Aug 4, 2015
How Rails' fancy exception page works
One of the nice things about working with rails is that when something goes wrong in development, you get a really nice error detail page. Today we're going to take a look at how these fancy error pages work.
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By Starr Horne
- Aug 3, 2015
How to clear all Sidekiq queues, using the power of emoji
It’s easy to find code snippets that will delete the jobs from one Sidekiq queue. But we have lots of queues. I want to clear the jobs from all of them. After a little digging, I came up with an answer that seems to work well.
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By Starr Horne
- Jul 28, 2015
Use any C library from Ruby via Fiddle - the Ruby standard library's best kept secret.
Fiddle is a little-known module that was added to Ruby's standard library in 1.9.x. It allow you to interact directly with C libraries from Ruby. In this post we'll start with some simple examples and finish by using termios to talk to an arduino over a serial port.
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By Starr Horne
- Jul 27, 2015
How to add context data to exceptions in Ruby
Sometimes the standard backtrace / error message combo isn't enough. Sometimes you need extra data to locate the cause of an error. In this post we'll discuss three easy ways to add more context to your exceptions.
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By Starr Horne
- Jul 23, 2015
Understanding Ruby's strange "Errno" exceptions
If you've ever taken a look at Ruby's exception hierarchy, you may have noticed something weird. In addition to all of the normal exceptions like RuntimeError and NoMethodError, there's an odd reference to Errno::* . This post discusses what these exceptions are and how to interpret them.
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By Starr Horne
- Jul 22, 2015
A theoretical introduction to unix daemons in Ruby
Unix daemons are programs that run in the background. Nginx, Postgres and OpenSSH are a few examples. They use a some special tricks to “detatch” their processes, and let them run independently of any terminal. I thought it’d be fun to do a post illustrating how they work in Ruby.
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By Starr Horne
- Jul 21, 2015
