title: Alamofire send Array of Dictionaries in a parameter
body: <p>I have a <code>POST API</code> in which I send multiple parameters, one of those parameters has to be an <code>array</code> of <code>dictionaries</code>.</p>
  
  <pre><code>let arr = [
      [
          "id" : "1",
          "price" : "10"
      ],
      [
          "id" : "2",
          "price" : "20"
      ]
  ]
  let params : Parameters = [
  
      "param1" : "anyvalue1",
  
      "param2" : "anyvalue2",
  
      "param3" : arr,
  
      ]
  </code></pre>
  
  <p>When I use these parameters in <code>Alamofire Request</code> and hit the API, <code>print(res.result.value)</code> always returns unknown. Can anyone help me with this. Following is the way of requesting the API</p>
  
  <p><code>Alamofire.request(url, method:.post, parameters: params).responseJSON{(res) in
            print(res.result.value) //always shows 'unknown' as output 
          }</code></p>