title: DialogFlow external api calling - result is always object Object
body: <p>Below is the method from index.js</p>
  
  <pre><code>function costOfItemHandler(agent) {
      const itemName = agent.parameters.foodItem;
      const url = "https://fast-beach-13460.herokuapp.com/Eatery";
      return axios.get(url)
          .then((result) =&gt; {
              console.log('result is '+ result);   
          });
  </code></pre>
  
  <p>In the log it is coming textPayload: "result is [object Object]".
  Where as when I am browsing the url it is giving proper response.</p>