freckle-api-time-totals-for-tags-example.rb

entries = YourHTTPClientOfChoice.get("https://api.letsfreckle.com/v2/entries?project_ids=1234&from=2016-01-03&to=2016-01-09")

# a hash, where the key is the tag name and the value is
# the total number of minutes logged using this tag
# example {"email" => 90 }
tag_totals = {}

entries.each do |entry|
  minutes = entry["minutes"]
  # iterate through all the entries tags, adding the entry's minutes to the tag's total
  entry.tags.each do |tag|
    if !tag_totals.has_key?(tag["name"])
      tag_totals[tag["name"]] = 0
    end
    
    tag_totals[tag["name"]] += minutes
  end
end

# Now you have all the time totals by tag!
puts tag_totals.inspect