REX12

A simple gem to read EDI data in the ASNI X.12 format.

Add this line to your application's Gemfile:

gem 'rex12'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install rex12

To simply read all data from an EDI data file into a REX12::Document...

NOTE - All public REX12 methods for parsing EDI data (REX12#document, REX12#each_segment, and REX12#each_transaction) can receive a string path, a Pathname, an IO, or Tempfile object as the means for supplying your EDI data to the methods

require 'rex12'

document = REX12.document 'path/to/file.edi'

# yielded segments are of type REX12::Segment
document.segments.each do |segment|
  if segment.isa_segment?
    # Print out the sender from the ISA segment
    puts "Reading an EDI document from '#{segment[8]}'"
  else
    if segment.segment_type == "DTM"
      # Look for a specific date
      if segment[1] == "056"
        puts "Sender sent an '056' date of #{segment[2]}"
      else
        puts "This is not the date you're looking for."
      end
    end
  end
end

To get each individual transaction (.ie each individual unit defined between ST - SE segment pairs) yielded to your code:

File.open("/path/to/file.edi", "r") do |file|
  REX12.each_transaction(file) do |transaction|
    # transaction is type REX12::Transaction
    edi_type = transaction.segments[0][1]
    if edi_type == "850"
      process_purchase_order(transaction)
    elsif edi_type == "856"
      process_shipment(transaction)
    else
      puts "Not sure what to do with #{edi_type} documents."
    end
  end
end

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.

Bug reports and pull requests are welcome on GitHub at https://github.com/Vandegrift/rex12. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

The gem is available as open source under the terms of the MIT License.