gistfile1.rb

require 'faraday'
require 'debugger'

@connection = Faraday.new("http://localhost") do |builder|
  # builder.use Faraday::Request::BasicAuthentication.header('user', 'pass')

  builder.adapter :test do |stub|
    stub.get('/something') {[ 200, {}, 'yay' ]}
  end
end

debugger
@connection.basic_auth('user', 'pass')                    # 
puts @connection.builder.handlers.to_s                    # [Faraday::Adapter::Test]
puts @connection.url_prefix.to_s                          # http://localhost/
puts @connection.get('/something').body                   # yay
puts @connection.get('/something').env[:request_headers]  # {"Authorization"=>"Basic dXNlcjpwYXNz"}

##########
Farady connection:
    def basic_auth(login, pass)
      headers[Faraday::Request::Authorization::KEY] =
        Faraday::Request::BasicAuthentication.header(login, pass)
    end