Delphi ActiveX Requires Chilkat v11.0.0+

Get the Photos for a User

See more Facebook Examples

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

var
success: Integer;
oauth2: TChilkatOAuth2;
rest: TChilkatRest;
responseJson: WideString;
json: TChilkatJsonObject;
dtime: TCkDateTime;
bLocalTime: Integer;
dt: TDtObj;
i: Integer;
numItems: Integer;
name: WideString;

begin
success := 0;

//  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
oauth2 := TChilkatOAuth2.Create(Self);
oauth2.AccessToken := 'FACEBOOK-ACCESS-TOKEN';

rest := TChilkatRest.Create(Self);

//  Connect to Facebook.
success := rest.Connect('graph.facebook.com',443,1,1);
if (success = 0) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

//  Provide the authentication credentials (i.e. the access key)
rest.SetAuthOAuth2(oauth2.ControlInterface);

//  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.
responseJson := rest.FullRequestNoBody('GET','/v2.7/me/photos');
if (rest.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

json := TChilkatJsonObject.Create(Self);
json.EmitCompact := 0;
json.Load(responseJson);
Memo1.Lines.Add(json.Emit());

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

dtime := TCkDateTime.Create(Self);
bLocalTime := 1;

dt := TDtObj.Create(Self);
i := 0;
numItems := json.SizeOfArray('data');
while i < numItems do
  begin
    json.I := i;
    Memo1.Lines.Add('--- ' + IntToStr(i));
    name := json.StringOf('data[i].name');
    if (json.LastMethodSuccess = 1) then
      begin
        Memo1.Lines.Add('name: ' + name);
      end;
    Memo1.Lines.Add('id: ' + json.StringOf('data[i].id'));

    //  We can load the created_time into a CkDateTime...
    dtime.SetFromTimestamp(json.StringOf('data[i].created_time'));
    dtime.ToDtObj(bLocalTime,dt.ControlInterface);

    Memo1.Lines.Add(IntToStr(dt.Month) + '/' + IntToStr(dt.Day) + '/' + IntToStr(dt.Year) + '  ' + IntToStr(dt.Hour) + ':' + IntToStr(dt.Minute));
    i := i + 1;
  end;

//  We can get the paging information as follows:
Memo1.Lines.Add('URL for next page: ' + json.StringOf('paging.next'));
Memo1.Lines.Add('before cursor: ' + json.StringOf('paging.cursors.before'));
Memo1.Lines.Add('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"
//    }
//  }
//