isabella232 / avalara

A Ruby interface to the Avalara Tax API.

Avalara gem

This API provides access to the Avalara AvaTax API.

Setup

Add the gem to your Gemfile.

gem 'avalara'

Setup your Avalara credentials, either in a yml file, or as environment variables. If you want to add a yml file, it'll just need username and password:

username: 'testaccount'
password: 'testkey'

You can also specify a different endpoint for development mode:

endpoint: https://development.avalara.net

Setup the gem in an initializer (if using Rails), or wherever if you're not. You can load in your username/password however you want, but here's a sample way to do this:

file = File.new(File.join(Rails.root, 'config', 'avalara.yml'))

if file.exist?
  begin
    AVALARA_CONFIGURATION = YAML.load_file(path)
    Avalara.configure do |config|
      config.username = AVALARA_CONFIGURATION['username'] || abort("Avalara configuration file (#{path}) is missing the username value.")
      config.password = AVALARA_CONFIGURATION['password'] || abort("Avalara configuration file (#{path}) is missing the password value.")
      config.version = AVALARA_CONFIGURATION['version'] if AVALARA_CONFIGURATION.has_key?('version')
      config.endpoint = AVALARA_CONFIGURATION['endpoint'] if AVALARA_CONFIGURATION.has_key?('endpoint')
    end
  end
else
  abort "Avalara configuration not found."
end

Usage

After that you should be able to use a few endpoints to Avalaras tax service. If you need a new endpoint, feel free to fork this gem, add support for it, add specs and do a pull request back.

Geographical Tax

result = Avalara.geographical_tax('47.627935', '-122.51702', 100)

# Access the details of the result, which is a Avalara::Response::Tax object
result.rate
result.tax
result.tax_details

Get Tax

line = Avalara::Request::Line.new({  
  line_no: "1",
  destination_code: "1",
  origin_code: "1",
  qty: "1",
  amount: 10
})

address = Avalara::Request::Address.new({
  address_code: 1,
  line_1: "435 Ericksen Avenue Northeast",
  line_2: "#250",
  postal_code: "98110"
})

invoice = Avalara::Request::Invoice.new({
  doc_date: Time.now,
  company_code: 1,
  lines: [line],
  addresses: [address]
})

# You'll get back a Response::Invoice object
result = Avalara.get_tax(invoice)

result.result_code
result.total_amount
result.total_tax
result.total_tax_calculated

Contributing

If you want to contribute, please fork this repo and make a pull request back. If you add some specs and everything still passes, we can get your contribution in! Thanks to everyone who has contributed:

• Adam Fortuna
• James Cox
• Dan Sosedoff
• Leo Correa