title: Running a Dash app within a Flask app
body: <p>I have an existing Flask app, and I want to have a route to <em>another app</em>. More concretely, the second app is a <a href="https://plot.ly/products/dash/" rel="noreferrer">Plotly Dash</a> app. How can I run my Dash app within my existing Flask app?</p>
  
  <pre><code>@app.route('/plotly_dashboard') 
  def render_dashboard():
      # go to dash app
  </code></pre>
  
  <p>I also tried adding a route to the Dash instance, since it's a Flask app, but I get the error:</p>
  
  <pre><code>AttributeError: 'Dash' object has no attribute 'route'
  </code></pre>