faraday.rb

def call
  # code omitted
  
  conn = Faraday.new
  res = conn.get do |req|
    req.url "#{ENV['TRANSACTION_HOST']}/transactions?user_id=#{user_id}"
    req.headers['Content-Type'] = 'application/json'
    req.headers['InternalAPIPassword'] = ENV['INTERNAL_API_PASSWORD']
    req.headers['UserCode'] = ENV['USER_CODE']
    req.headers['UserRole'] = ENV['USER_ROLE']
  end
  
  # code omitted
end