ruby on rails - Application proxy in shopify is not working(RoR) -


i new shopify app development. want shop data , show proxy url. read this artcle

but after following steps in next steps section got error in heroku logs on line .

shopifyapi::base.site = shop.find_by_name(params[:shop]).api_url

i avoided error 

shopifyapi::base.site = shop.find(name: params[:shop]) @orders = shopifyapi::order.find(:all, :params => {:limit => 10})

this view file code

<% @orders.each |order| %>    <%= order.line_items.first.title %>  <% end %>

now getting following error

 actionview::template::error (undefined method `each' nil:nilclass):

shopify gurus issue?


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