gistfile1.txt

def connect_to_ir!(path, method=:post, payload={})
      uri = URI.parse("https://api.independentreserve.com/Private")
      http = Net::HTTP.new(uri.host, uri.port)
      http.use_ssl = true

      api_key = App.services.independentreserve.api_key
      api_secret = App.services.independentreserve.api_secret

      nonce = Time.now.to_i
      
      #build signature
      payload_arr    = [ [uri, path].join("/") ]
      payload_arr    << "apiKey=#{api_key}"
      payload_arr    << "nonce=#{nonce}"
      payload_arr    << payload.map{|k,v|"#{k}=#{v}"} 
      payload_joined = payload_arr.join(",")
      signature      = Base64.encode64(OpenSSL::HMAC.hexdigest('sha256', api_secret, payload_joined))

      # merge payload with required parameters
      merged_payload = {}
      merged_payload["apiKey"] = api_key
      merged_payload["nonce"] = nonce
      merged_payload["signature"] = signature
      merged_payload = merged_payload.merge(payload) 

      if method==:get 
        request = Net::HTTP::Get.new(path)
      elsif method==:post 
        request = Net::HTTP::Post.new(path)
      elsif method==:put 
        request = Net::HTTP::Put.new(path)
      end

      request.add_field('Content-Type', 'application/json')
      request.body = merged_payload.to_json 
      
      response = http.request(request)
      JSON.parse(response.body)
      
    end