Get Individual Photo Info

Assuming we have the ID of a Photo, this example demonstrates how to retrieve the photo information and parse the JSON.
Chilkat C# Downloads

bool success = false;

//  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...
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);

//  Assumes we've already obtained a Photo ID.
string photoId = "10210199026347451";

Chilkat.StringBuilder sbPath = new Chilkat.StringBuilder();
sbPath.Append("/v2.7/");
sbPath.Append(photoId);

//  Select the fields we want.
//  This example will select many of the possible fields.
//  See https://developers.facebook.com/docs/graph-api/reference/photo/
rest.AddQueryParam("fields","id,album,can_delete,can_tag,from,height,width,images,link,name,name_tags,picture,place,target");

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 response is shown below.
//  Demonstrate how to parse values from the JSON.
Debug.WriteLine("Album name: " + json.StringOf("album.name"));
bool canDelete = json.BoolOf("can_delete");
Debug.WriteLine("Can Delete: " + Convert.ToString(canDelete));
Debug.WriteLine("From Name: " + json.StringOf("from.name"));
int height = json.IntOf("height");
int width = json.IntOf("width");
Debug.WriteLine("Dimensions: " + Convert.ToString(width) + "x" + Convert.ToString(height));
Debug.WriteLine("First Image Source: " + json.StringOf("images[0].source"));

//  A sample JSON response is shown here.  
//  { 
//    "id": "10210199026347451",
//    "album": { 
//      "created_time": "2009-10-19T00:06:46+0000",
//      "name": "Timeline Photos",
//      "id": "1237223526054"
//    },
//    "can_delete": true,
//    "can_tag": true,
//    "from": { 
//      "name": "Matt Smith",
//      "id": "10224048320139890"
//    },
//    "height": 120,
//    "width": 120,
//    "images": [
//      { 
//        "height": 120,
//        "source": "https:\/\/scontent.xx.fbcdn.net\/v\/t1.0-9\/14462791_10210199026347451_7830642117574407060_n.jpg?oh=a7f9ed10cf9cd81a82adeb541c60e2e2&oe=58ABB195",
//        "width": 120
//      }
//    ],
//    "link": "https:\/\/www.facebook.com\/photo.php?fbid=10210199026347451&set=a.1237223526054.2038240.1093202869&type=3",
//    "name": "Ignore my posts -- I'm doing some testing for Facebook related programming...",
//    "picture": "https:\/\/scontent.xx.fbcdn.net\/v\/t1.0-9\/14462791_10210199026347451_7830642117574407060_n.jpg?oh=a7f9ed10cf9cd81a82adeb541c60e2e2&oe=58ABB195"
//  }
//