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A Ruby wrapper for the Google Analytics API

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README.md

Garb

http://github.com/vigetlabs/garb

Important Changes

Please read CHANGELOG

Description

Provides a Ruby API to the Google Analytics API.

http://code.google.com/apis/analytics/docs/gdata/gdataDeveloperGuide.html

Basic Usage

Single User Login

> Garb::Session.login(username, password)

OAuth Access Token

> Garb::Session.access_token = access_token # assign from oauth gem

Accounts

> Garb::Account.all

Profiles

> Garb::Account.first.profiles

> Garb::Profile.first('UA-XXXX-XX')

> Garb::Profile.all
> profile = Garb::Profile.all.first

Define a Report Class

class Exits
  extend Garb::Resource

  metrics :exits, :pageviews, :exit_rate
  dimensions :page_path
  sort :exits

  filters do
    eql(:page_path, 'season')
  end

  # alternative:
  # filters :page_path.eql => 10
end

Get the Results

> Exits.results(profile)

OR shorthand

> profile.exits

Other Parameters

  • start_date: The date of the period you would like this report to start
  • end_date: The date to end, inclusive
  • limit: The maximum number of results to be returned
  • offset: The starting index

Metrics & Dimensions

Metrics and Dimensions are very complex because of the ways in which the can and cannot be combined.

I suggest reading the google documentation to familiarize yourself with this.

http://code.google.com/apis/analytics/docs/gdata/gdataReferenceDimensionsMetrics.html#bounceRate

When you've returned, you can pass the appropriate combinations (up to 50 metrics and 2 dimenstions) to garb, as an array, of symbols. Or you can simply push a symbol into the array.

Sorting

Sorting can be done on any metric or dimension defined in the request, with .desc reversing the sort.

Building a Report

Given the class, session, and profile from above we can do:

Exits.results(profile, :limit => 10, :offset => 19)

Or, with sorting and filters:

Exits.results(profile, :limit => 10, :offset => 19) do
  sort :exits

  filters do
    contains(:page_path, 'season')
    gt(:exits, 100)
  end

  # or with a hash
  # filters :page_path.contains => 'season', :exits.gt => 100
end

reports will be an array of OpenStructs with methods for the metrics and dimensions returned.

Build a One-Off Report

report = Garb::Report.new(profile)
report.metrics :pageviews, :exits
report.dimensions :page_path
report.sort :exits

report.filters do
  contains(:page_path, 'season')
  gte(:exits, 10)
and

# or with a hash
# report.filters :page_path.contains => 'season', :exits.gt => 100

report.results

Filtering

Google Analytics supports a significant number of filtering options.

http://code.google.com/apis/analytics/docs/gdata/gdataReference.html#filtering

We handle filtering as an array of hashes that you can push into, which will be joined together (AND'd)

Here is what we can do currently: (the operator is a method on a symbol metric or dimension)

Operators on metrics:

eql => '==',
not_eql => '!=',
gt => '>',
gte => '>=',
lt => '<',
lte => '<='

Operators on dimensions:

matches => '==',
does_not_match => '!=',
contains => '=~',
does_not_contain => '!~',
substring => '=@',
not_substring => '!@'

Given the previous example one-off report, we can add a line for filter:

report.filters do
  eql(:page_path, '/extend/effectively-using-git-with-subversion/')
end

Or, if you're comfortable using symbol operators:

report.filters :page_path.eql => '/extend/effectively-using-git-with-subversion/'

SSL

Version 0.2.3 includes support for real ssl encryption for SINGLE USER authentication. First do:

Garb::Session.login(username, password, :secure => true)

Next, be sure to download http://curl.haxx.se/ca/cacert.pem into your application somewhere. Then, define a constant CA_CERT_FILE and point to that file.

For whatever reason, simply creating a new certificate store and setting the defaults would not validate the google ssl certificate as authentic.

TODOS

  • Read opensearch header in results
  • Investigate new features from GA to see if they're in the API, implement if so
  • clarify AND/OR filtering behavior in code and documentation

Requirements

  • happymapper >= 0.3.0 (should also install libxml)
  • active_support >= 2.3.0

Requirements for Testing

  • jferris-mocha
  • tpitale-shoulda (works with minitest)

Install

sudo gem install garb

Contributors

Many Thanks, for all their help, goes to:

  • Patrick Reagan
  • Justin Marney
  • Nick Plante

License

(The MIT License)

Copyright (c) 2010 Viget Labs

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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