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(.NET Core C#) Read a Single Facebook Post

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.

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// 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
Chilkat.OAuth2 oauth2 = new Chilkat.OAuth2();
oauth2.AccessToken = "FACEBOOK-ACCESS-TOKEN";

Chilkat.Rest rest = new Chilkat.Rest();

// Connect to Facebook...
bool success = rest.Connect("graph.facebook.com",443,true,true);
if (success != true) {
    Debug.WriteLine(rest.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.

string postId = "10224048320139890_10210156138515282";

Chilkat.StringBuilder sbPath = new Chilkat.StringBuilder();
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");

string responseJson = rest.FullRequestNoBody("GET",sbPath.GetAsString());
if (rest.LastMethodSuccess != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.EmitCompact = false;
json.Load(responseJson);

// Show the JSON in human-readable format.
Debug.WriteLine(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.
Debug.WriteLine("type: " + json.StringOf("type"));
Debug.WriteLine("message: " + json.StringOf("message"));
Debug.WriteLine("id: " + json.StringOf("id"));
Debug.WriteLine("link: " + json.StringOf("link"));
Debug.WriteLine("privacy descripton: " + json.StringOf("privacy.description"));

Chilkat.CkDateTime dtime = new Chilkat.CkDateTime();
bool bLocalTime = true;
dtime.SetFromTimestamp(json.StringOf("created_time"));
Chilkat.DtObj dt = dtime.GetDtObj(bLocalTime);
Debug.WriteLine(Convert.ToString(dt.Month) + "/" + Convert.ToString(dt.Day) + "/" + Convert.ToString(dt.Year) + "  " + Convert.ToString(dt.Hour)
     + ":" + Convert.ToString(dt.Minute));


 

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