There was an attempt

A small utility designed to be used alongside Dry::Monads::Result to repeatedly attempt an operation sleeping between failed attempts.

Installation

Add this line to your application's Gemfile:

gem 'there_was_an_attempt'

And then execute:

$ bundle

Or install it yourself as:

$ gem install there_was_an_attempt

Usage

Without any arguments given to the constructor a basic backoff interval (2, 4, 8, 16 to be precise) is used with sleep being used to wait, as a nicety this is available as .attempt:

# Shortcut for: ThereWasAnAttempt.new.attempt
ThereWasAnAttempt.attempt do
    Dry::Monads::Success(true)
end

You can specify your backoff intervals manually:

ThereWasAnAttempt.new([1,2,4,8]).attempt do
    Dry::Monads::Success(true)
end

And you can also optionally specify your own "wait" logic:

ThereWasAnAttempt.new([1,2,4,8], ->(seconds) { puts seconds; sleep seconds }).attempt do
    Dry::Monads::Success(true)
end

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/samuelgiles/there_was_an_attempt.