(C#) Get the Photos for a User

Demonstrates how to get the photos that the user has uploaded.

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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);

// Indicate that we only want the photos the user has personally uploaded.
rest.AddQueryParam("type","uploaded");

// We could limit the number of photos by setting a limit.
rest.AddQueryParam("limit","5");

// Gets the 1st page of photos. (Not the actual image data, but the information about each photo.)
// See https://developers.facebook.com/docs/graph-api/reference/user/photos/ for more information.
string responseJson = rest.FullRequestNoBody("GET","/v2.7/me/photos");
if (rest.LastMethodSuccess != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

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

// A sample JSON response is shown below.  
// This is the code to parse the JSON response.

Chilkat.CkDateTime dtime = new Chilkat.CkDateTime();
bool bLocalTime = true;

Chilkat.DtObj dt = null;
int i = 0;
int numItems = json.SizeOfArray("data");
while (i < numItems) {
    json.I = i;
    Debug.WriteLine("--- " + Convert.ToString(i));
    string name = json.StringOf("data[i].name");
    if (json.LastMethodSuccess == true) {
        Debug.WriteLine("name: " + name);
    }

    Debug.WriteLine("id: " + json.StringOf("data[i].id"));

    // We can load the created_time into a CkDateTime...
    dtime.SetFromTimestamp(json.StringOf("data[i].created_time"));
    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));

    i = i + 1;
}

// We can get the paging information as follows:
Debug.WriteLine("URL for next page: " + json.StringOf("paging.next"));
Debug.WriteLine("before cursor: " + json.StringOf("paging.cursors.before"));
Debug.WriteLine("after cursor: " + json.StringOf("paging.cursors.after"));

// This is a sample JSON response:
// { 
//   "data": [
//     {
//       "created_time": "2016-09-29T20:46:18+0000",
//       "name": "Ignore my posts -- I'm doing some testing for Facebook related programming...",
//       "id": "10210199026347451"
//     },
//     { 
//       "created_time": "2016-09-19T02:00:42+0000",
//       "id": "10210091531240138"
//     },
//     { 
//       "created_time": "2016-09-19T02:00:42+0000",
//       "id": "10210091520620125"
//     },
//     { 
//       "created_time": "2016-09-19T01:59:46+0000",
//       "name": "I would've went for a swim had it not been for the sign",
//       "id": "10210091522299917"
//     },
//     { 
//       "created_time": "2016-09-12T00:37:35+0000",
//       "id": "10210023316834798"
//     }
//   ],
//   "paging": { 
//     "cursors": { 
//       "before": "MTAyMTAxOTkwMjYzNDc0NTEZD",
//       "after": "MTAyMTAwMjMzMTU4MzQ3OTgZD"
//     },
//     "next": "https:\/\/graph.facebook.com\/v2.7\/10224048320139890\/photos?type=uploaded&limit=5&after=MTAyMTAwMjMzMTU4MzQ3OTgZD"
//   }
// }
//