title: How to read raw json request from POST request in Falcon
body: <p>How do I parse JSON request something like that? </p>
  
  <pre><code>{
    "location_with_names": [
      {
        "location_id": 101,
        "names": [
          "a",
          "b",
          "c"
        ]
      },
      {
        "location_id": 102,
        "names": [
          "a",
          "e"
        ]
      },
      {
        "location_id": 103,
        "names": [
          "f",
          "c"
        ]
      }
    ]
  }
  </code></pre>
  
  <p>sample code:</p>
  
  <pre><code>def on_post(self, req, resp):
      location_with_names = req.get_param_as_list('location_with_names')
      print(location_with_names)
  </code></pre>
  
  <p><code>location_with_names</code> is None</p>