title: how to get comments, posted on reviews on Facebook page using graph API
body: <p>I want to get comments posted on a review. I am trying to get comments using reviews id but no data returns from fb graph api.</p>
  
  <p>Here's the graph api query I'm using  to get all reviews:
  <code>https://graph.facebook.com/v3.2/613053785834585/?fields=ratings%7Bopen_graph_story%7D&amp;access_token=accesstoken</code></p>
  
  <p>My result is: </p>
  
  <pre><code>    {
        "ratings": {
          "data": [
            {
              "open_graph_story": {
                "id": "1301773496640266",
                "message": "improve some more quality not as per standards.......",
                "start_time": "2019-04-08T13:24:47+0000",
                "type": "sellers.rates",
                "data": {
                  "recommendation_type": "negative",
                  "review_text": "improve some more quality not as per standards.......",
                  "is_hidden": false,
                  "language": "en",
                  "seller": {
                    "id": "613053785834585",
                    "title": "Developer Zone",
                    "type": "profile",
                    "url": "https://www.facebook.com/DeveloperZoneKrishan/"
                  },
                  "has_review_update": false
                }
              }
            },
            {
              "open_graph_story": {
                "id": "1151783264995390",
                "message": "This review for testing, Please ignore it.",
                "start_time": "2019-04-03T13:21:56+0000",
                "type": "sellers.rates",
                "data": {
                  "recommendation_type": "positive",
                  "review_text": "This review for testing, Please ignore it.",
                  "is_hidden": false,
                  "language": "en",
                  "seller": {
                    "id": "613053785834585",
                    "title": "Developer Zone",
                    "type": "profile",
                    "url": "https://www.facebook.com/DeveloperZoneKrishan/"
                  },
                  "has_review_update": false
                }
              }
            }
          ]
        },
        "id": "613053785834585"
      }
  </code></pre>
  
  <p>and now i want to get comments posted on last review thats id is 1151783264995390, using:
  <code>https://graph.facebook.com/v3.2/1151783264995390/comments?access_token=accesstoken</code></p>
  
  <p>but this returns empty like this:</p>
  
  <pre><code>{
      "data": []
  }
  </code></pre>
  
  <p>I expect it will return comments data posted on specific review (<a href="https://i.stack.imgur.com/qGY9V.jpg" rel="nofollow noreferrer">example</a>).</p>