kammerer / retrying

Easily retry block of code in case of an exception

Retrying

Runs a code block, and retries it when an exception occurs.

It's configured using optional parameters :tries, :on and :sleep.

Should the number of retries be reached without success, the last exception will be raised.

Installation

Add this line to your application's Gemfile:

gem 'retrying'

And then execute:

$ bundle

Or install it yourself as:

$ gem install retrying

Usage

Open an URL, try up to three times retrying when an OpenURI::HTTPError occurs.

require "retrying"
require "open-uri"

include Retrying

retrying(:tries => 3, :on => OpenURI::HTTPError, :sleep => 0.5) do
  xml = open("http://example.com/test.xml").read
end

Do something, try up to five times for either ArgumentError or TimeoutError exceptions.

retrying(:tries => 5, :on => [ArgumentError, TimeoutError]) do
  # some crazy code
end

Alternatives

• nfedyashev/retryable
• robertsosinski/retryable

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request