Dart Requires Chilkat v11.0.0+

Read a Single Facebook Post

See more Facebook Examples

Demonstrates how to read the contents of a single Facebook post. A post is an individual entry in a profile's feed. The profile could be a user, page, app, or group. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  // This example assumes a previously obtained an access token
  final oauth2 = CkOAuth2();
  oauth2.accessToken = 'FACEBOOK-ACCESS-TOKEN';

  final rest = CkRest();

  // Connect to Facebook...
  try {
    rest.connect('graph.facebook.com', 443, true, true);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Provide the authentication credentials (i.e. the access key)
  rest.setAuthOAuth2(oauth2);

  // This example assumes a post id was already retrieved.
  // For example, it could've been retrieved by reading the user's feed:
  // See Parsing the Facebook User Feed for code showing how to parse the JSON feed content.

  final postId = '10224048320139890_10210156138515282';

  final sbPath = CkStringBuilder();
  sbPath.append('/v2.7/');
  sbPath.append(postId);

  // Select the fields we want.
  // This example will select almost all the possible fields.
  // See https://developers.facebook.com/docs/graph-api/reference/post/
  rest.addQueryParam('fields', 'id,message,created_time,caption,description,from,link,name,object_id,picture,place,privacy,properties,shares,source,status_type,story,targeting,to,type,updated_time,with_tags');

  final String responseJson;
  try {
    responseJson = rest.fullRequestNoBody('GET', sbPath.getAsString());
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final json = CkJsonObject();
  json.emitCompact = false;
  json.load(responseJson);

  // Show the JSON in human-readable format.
  print(json.emit());

  // A sample JSON response is shown here.  
  // { 
  //   "id": "12345678901234567_12345678900000004",
  //   "message": "Ignore my posts -- I'm doing some testing for Facebook related programming...",
  //   "created_time": "2016-09-29T20:46:18+0000",
  //   "from": { 
  //     "name": "John Doe",
  //     "id": "12345678901234567"
  //   },
  //   "link": "https:\/\/www.facebook.com\/photo.php?fbid=10210199026247451&set=a.1237223526054.2038240.1094202869&type=3",
  //   "object_id": "10210139026347451",
  //   "picture": "https:\/\/scontent.xx.fbcdn.net\/v\/t1.0-9\/14462791_10210199026647451_7830642117574407060_n.jpg?oh=a7f9ed10ce9cd81a82adeb541c60e2e2&oe=58ABB195",
  //   "privacy": { 
  //     "allow": "",
  //     "deny": "",
  //     "description": "Public",
  //     "friends": "",
  //     "value": "EVERYONE"
  //   },
  //   "status_type": "added_photos",
  //   "type": "photo",
  //   "updated_time": "2016-09-29T20:46:18+0000"
  // }

  // This is the code to parse some fields in the JSON response.
  print('type: ${json.stringOf('type')}');
  print('message: ${json.stringOf('message')}');
  print('id: ${json.stringOf('id')}');
  print('link: ${json.stringOf('link')}');
  print('privacy descripton: ${json.stringOf('privacy.description')}');

  final dtime = CkDateTime();
  final bLocalTime = true;
  dtime.setFromTimestamp(json.stringOf('created_time'));
  final dt = CkDtObj();
  dtime.toDtObj(bLocalTime, dt);

  print('${dt.month}/${dt.day}/${dt.year}  ${dt.hour}:${dt.minute}');
}