Elixir package to validate European VAT numbers with the VIES service.

Add viex to your list of dependencies in mix.exs:

def deps do
  [{:viex, "~> 0.3.0"}]
end

Use Viex.lookup/1 to look up a European VAT number. Returns a Viex.Response struct containing the company name, address, and a valid key that is either true or false.

iex(1)> Viex.lookup("NL854265259B01")
%Viex.Response{address: "PRINS BERNHARDPLEIN 00200\n1097JB AMSTERDAM", company: "GITHUB B.V.",
  valid: true}

Use Viex.valid?/1 to check the validity of a European VAT number. Returns a boolean.

iex(1)> Viex.valid?("NL854265259B01")
true