title: Shopify API, unable to create order
body: <p>I created private application on my test shop and I am trying to create simple order via the Shopify API following the instructions found here:</p>
  
  <p><a href="http://docs.shopify.com/api/order#create" rel="nofollow">http://docs.shopify.com/api/order#create</a></p>
  
  <p>I am using the last example, and sending POST request to admin/orders.json with this in the body of the request:</p>
  
  <pre><code>{
    "order": {
      "line_items": [
        {
          "quantity": 1,
          "variant_id": 500775053
        }
      ]
    }
  }
  </code></pre>
  
  <p>500775053 is a <strong>valid</strong> variant id.</p>
  
  <p>The response I'm getting is:</p>
  
  <pre><code>{
      "errors": {
          "line_items": [
              "must have at least one line item"
          ]
      }
  }
  </code></pre>
  
  <p>I don't understand what am I doing wrong? Is there some special parameter that I should pass along the request? Some special header?</p>
  
  <p>Thank you for your help!</p>