Last Updated: February 25, 2016
·
1.534K
· fsproru

pETL - Pretty Good ETL Framework

What is pETL

Even 70 lines of code is enough to give back to the community. pETL is a tiny gem that brings a better structure, reduce a code duplication and makes your ETL code familiar to the developers.

Petl Logo

Features

  1. Batching support
  2. Automatic validity check
  3. Logging of running times

Usage

require 'petl'

module ETL::Example
  extend Petl
  extend self

  def extract
    # Grab all data from source(s) here.
    # Preferably return an array of hashes.
  end

  def transform rows
    # Manipulate the data extracted by the previous extract method.
  end

  def load rows
    # Load the transformed data here into the destination(s).
  end

  def source_count
    # Count the number of records from your source(s).
  end

  def destination_count
    # Same as #source_count but with your destination(s).
  end
end

# Run it!
ETL::Example.perform

Code

https://github.com/zestfinance/petl

Presentation

https://speakerdeck.com/fsproru/petl-pretty-good-etl-framework