Retry Gem

What

Benjamin Franklin said, “The definition of insanity is doing the same thing over and over and expecting different results.” Sometimes, though, a retry is exactly what you need. You may need to call something that is not reliable. Maybe it is a network connection that might be down temporarily. How often have you built retry logic around a bit of code that just might fail on occasion? This ruby gem takes care of that situation nicely.

Installing

sudo gem install retry

Demonstration of usage

require 'retry'

10.tries do
  raise 'network connection failed' if rand() < 0.7
  puts 'success'
end

Output:

> ruby tries.rb
> Try 1 failed: network connection failed
> Try 2 failed: network connection failed
> success

License

This code is free to use under the terms of the MIT license.

Contact

Comments are welcome. Send an email to Haakon Sorensen.

Dr Nic, 1st June 2007
Theme extended from Paul Battley