The Honeybadger Developer Blog
Tutorials, product info, and good advice from the Honeybadger crew.
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
Logging local & instance variables when exceptions occur in Ruby
With hard-to-reproduce bugs, it can be really handy to log all of the local and instance variables along with the exception. This post shows you how. Along the way we'll introduce Ruby's binding system as well as the bindingofcaller gem - a powerful tool for introspection.
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By Starr Horne
- Jul 20, 2015
Ruby's case statement - advanced techniques
Nothing could be simpler and more boring than the case statement. It’s a holdover from C. You use it to replace a bunch of ifs. Case closed. Or is it? Actually, case statements in Ruby are a lot richer and more complex than you might imagine. Let’s take a look.
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By Starr Horne
- Jul 15, 2015
Remote debugging with Byebug, Rails and Pow
Byebug is a simple to use, feature rich debugger for Ruby 2.x. In this post, we'll discuss how to set up remote debugging with byebug so that you can debug code running in Pow, Unicorn or other application servers.
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By Starr Horne
- Jul 15, 2015
How unicorn talks to nginx - an introduction to unix sockets in Ruby
In this post we start out with the basics of unix sockets and finish by creating our own simple Ruby application server which can be proxied by nginx.
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By Starr Horne
- Jul 14, 2015
Level-up `rescue` with dynamic exception matchers
When you use a rescue clause in Ruby, you can specify what kinds of exceptions you want to rescue. But what if you want to rescue exceptions by severity? By message? By time of day? In this post we'll discuss how you can create dynamic exception matchers that use your logic to decide if an exception gets rescued.
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By Starr Horne
- Jul 13, 2015
Nested errors in Ruby with Exception#cause
It's a common pattern in Ruby to rescue and exception and re-raise another kind of exception. But the original exception isn't lost! You can use Exception#cause to grab it. In this post we show you how.
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By Starr Horne
- Jul 8, 2015
Announcing realtime error monitoring for Go
If you're a Go developer, we have some great news: you can now monitor your Go applications for panics and errors with Honeybadger! We've been working hard to create the same great error monitoring experience that our Ruby customers enjoy for the Go community, and we hope you'll love the results.
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By Joshua Wood
- Jul 8, 2015
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