法拉第发布请求与Rails表单

Question

我正在尝试使用faraday从我的控制器向第三方网站发出发帖请求，但无法正常工作吗？

我的房屋控制器中有一个方法可以发出请求，为该方法设置路由并为我的请求提供表格，但是我不知道我在做什么错，我无法获得成功的请求

    #homes_controller.rb
    def alpaca
        @conn = Faraday.post('https://paper-api.alpaca.markets/v2/orders') do |req|
          req.headers['APCA-API-KEY-ID'] = 'key'
          req.headers['APCA-API-SECRET-KEY'] = 'secret'
          req.body = "{'symbol': '#{params[:ticker]}'}"
          req.body = "{'qty': '#{params[:qty]}'}"
          req.body = "{'side': '#{params[:side]}'}"
          req.body = "{'type': '#{params[:ticker]}'}"
          req.body = "{'time_in_force': '#{params[:time_in_force]}'}"
        end
        redirect_to homes_path
      end

    #routes.rb
     resources :homes
      root 'homes#index'
      post '/alpaca', to: 'homes#alpaca'

    #homes/index.html.rb
     <%=form_tag alpaca_path do %>
     <%=label_tag "Ticker"%>
     <%=text_field_tag :ticker %>
     <%=label_tag "qty"%>
     <%=number_field_tag :qty %>
     <%=label_tag "side"%>
     <%=text_field_tag :side %>
     <%=label_tag "type"%>
     <%=text_field_tag :type %>
     <%=label_tag "time_in_force"%>
     <%=text_field_tag :time_in_force %>
     <%=submit_tag%>
     <%end%>

我正在尝试获取此表格，以发布传递给羊驼的贸易API的参数