title: How to load query string arguments in Flask Marshmallow schema
body: <p>I have a POST request defined in my Flask app as below:</p>
  
  <pre><code>https://www.foo.com/&lt;foo_id&gt;?bar_id=3
  </code></pre>
  
  <p>I am getting the <strong>path parameter</strong> <code>foo_id</code> as below:</p>
  
  <pre><code>from flask_restplus import Namespace, Resource
  
  ns = Namespace('Foo API')
  
  @ns.route("/&lt;string:foo_id&gt;")
  class FooExecute(Resource):
  
      def get(self, foo_id):
          print('foo_id = {}'.format(foo_id))
  </code></pre>
  
  <p>Though I am not able to get the <strong>query paramater</strong> <code>bar_id</code>. What is the right way to retrieve it?</p>