(Delphi DLL) OneDrive -- Search for Files

See more OneDrive Examples

Search for files within a hierarchy of items for items matching a query. You can search within a folder hierarhcy or a whole drive.

Note: This example requires Chilkat v9.5.0.97 or greater.

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Http, StringBuilder, JsonObject, CkDateTime;

...

procedure TForm1.Button1Click(Sender: TObject);
var
json: HCkJsonObject;
http: HCkHttp;
sbResults: HCkStringBuilder;
success: Boolean;
lastMod: HCkDateTime;
photoTaken: HCkDateTime;
i: Integer;
numItems: Integer;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Use your client ID, client secret, and tenant ID in the following lines
json := CkJsonObject_Create();
CkJsonObject_UpdateString(json,'client_id','2871da2c-8176-4b7f-869b-2311aa82e743');
CkJsonObject_UpdateString(json,'client_secret','2hu9Q~r5QuryUcEkNbg1btLtnfU1VUXzhSCG6brH');
CkJsonObject_UpdateString(json,'scope','https://graph.microsoft.com/.default');
CkJsonObject_UpdateString(json,'token_endpoint','https://login.microsoftonline.com/114d7ed6-71bf-4dbe-a866-748364121bf2/oauth2/v2.0/token');

http := CkHttp_Create();
CkHttp_putAuthToken(http,CkJsonObject__emit(json));

// Sends the following GET request:

// Search the entire drive like this:
// If not using "me", then the path should be /v1.0/users/{id | userPrincipalName}/...
// GET /v1.0/users/{user-id}/drive/root/search(q='{search-text}')

// Or search under a particular folder like this:
// GET /v1.0/users/{user-id}/drive/root:/{item-path}:/search(q='{search-text}')

// This example will search for files in or under the "/Misc" directory, having "penguin" in the file path.
CkHttp_SetUrlVar(http,'item_path','/Misc');
CkHttp_SetUrlVar(http,'search_text','penguins');
CkHttp_SetUrlVar(http,'user_id','4fe732c3-322e-4a6b-b729-2fd1eb5c6104');

sbResults := CkStringBuilder_Create();
success := CkHttp_QuickGetSb(http,'https://graph.microsoft.com/v1.0/users/{$user_id}/drive/root:/{$item_path}:/search(q=''{$search_text}'')',sbResults);
if (CkHttp_getLastMethodSuccess(http) <> True) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

// The response should be JSON.
CkJsonObject_putEmitCompact(json,False);
CkJsonObject_LoadSb(json,sbResults);

// A successful response should return a status code of 200.
if (CkHttp_getLastStatus(http) <> 200) then
  begin
    Memo1.Lines.Add(CkJsonObject__emit(json));
    Memo1.Lines.Add('Response status = ' + IntToStr(CkHttp_getLastStatus(http)));
    Exit;
  end;

Memo1.Lines.Add(CkJsonObject__emit(json));
Memo1.Lines.Add('--');

// Iterate over the results in the JSON response:
lastMod := CkDateTime_Create();
photoTaken := CkDateTime_Create();
i := 0;
numItems := CkJsonObject_SizeOfArray(json,'value');
while i < numItems do
  begin
    CkJsonObject_putI(json,i);
    Memo1.Lines.Add('-- DriveItem ' + IntToStr(i + 1));
    Memo1.Lines.Add('id: ' + CkJsonObject__stringOf(json,'value[i].id'));
    Memo1.Lines.Add('name: ' + CkJsonObject__stringOf(json,'value[i].name'));
    Memo1.Lines.Add('size: ' + IntToStr(CkJsonObject_IntOf(json,'value[i].size')));

    // Get the lastModifiedDateTime
    CkDateTime_SetFromTimestamp(lastMod,CkJsonObject__stringOf(json,'value[i].fileSystemInfo.lastModifiedDateTime'));

    // Is this a folder?
    if (CkJsonObject_HasMember(json,'value[i].folder') = True) then
      begin
        Memo1.Lines.Add('This is a folder with ' + IntToStr(CkJsonObject_IntOf(json,'value[i].folder.childCount')) + ' children');
      end;
    if (CkJsonObject_HasMember(json,'value[i].file') = True) then
      begin
        Memo1.Lines.Add('This is a file.');
        Memo1.Lines.Add('SHA1 hash: ' + CkJsonObject__stringOf(json,'value[i].file.hashes.sha1Hash'));
        Memo1.Lines.Add('mimeType: ' + CkJsonObject__stringOf(json,'value[i].mimeType'));
      end;
    if (CkJsonObject_HasMember(json,'value[i].image') = True) then
      begin
        Memo1.Lines.Add('This is an image.');
        Memo1.Lines.Add('height: ' + IntToStr(CkJsonObject_IntOf(json,'value[i].image.height')));
        Memo1.Lines.Add('width: ' + IntToStr(CkJsonObject_IntOf(json,'value[i].image.width')));
      end;
    if (CkJsonObject_HasMember(json,'value[i].photo') = True) then
      begin
        Memo1.Lines.Add('This is a photo.');
        CkDateTime_SetFromTimestamp(photoTaken,CkJsonObject__stringOf(json,'value[i].photo.takenDateTime'));
        Memo1.Lines.Add('photo taken on ' + CkDateTime__getAsRfc822(photoTaken,True));
      end;
    if (CkJsonObject_HasMember(json,'value[i].audio') = True) then
      begin
        Memo1.Lines.Add('This is an audio file.');
        Memo1.Lines.Add('duration: ' + IntToStr(CkJsonObject_IntOf(json,'value[i].audio.duration')));
      end;

    i := i + 1;
  end;

// Sample JSON OneDrive search response:

// 	{
// 	  "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#Collection(driveItem)",
// 	  "value": [
// 	    {
// 	      "@odata.type": "#microsoft.graph.driveItem",
// 	      "@microsoft.graph.downloadUrl": "https://public.dm2301.livefilestore.com/y4m01N6dLIV7ditztcRwWDx2Jzf1qiwJNASFiHfajfZUuJnEMgHmIZTASy3lNzwUFHQgET0I11hzqCyb0A6I5jhI9FgFAJlBJHFrToT7QXj2xvCV46LOZVJASk79LEWRRM97aOhdOHhKeIl_HxoIWSl08sX3kGyC50RP72rDE7ERSVdZAa3CmMNkp6tRtfKI5wfJNqSx3NeqLQ6LxwBBY4KgniPQOgEna0G_MKTGDt10T4",
// 	      "createdBy": {
// 	        "user": {
// 	          "displayName": "Matt Smith",
// 	          "id": "3a33fceb9b74cc15"
// 	        }
// 	      },
// 	      "createdDateTime": "2017-06-04T20:40:22.48Z",
// 	      "cTag": "aYzozQTMzRkNFQjlCNzRDQzE1ITQ4NzIuMjU3",
// 	      "eTag": "aM0EzM0ZDRUI5Qjc0Q0MxNSE0ODcyLjI",
// 	      "id": "3A33FCEB9B74CC15!4872",
// 	      "lastModifiedBy": {
// 	        "user": {
// 	          "displayName": "Matt Smith",
// 	          "id": "3a33fceb9b74cc15"
// 	        }
// 	      },
// 	      "lastModifiedDateTime": "2017-06-04T20:40:23.463Z",
// 	      "name": "penguins.jpg",
// 	      "parentReference": {
// 	        "driveId": "3a33fceb9b74cc15",
// 	        "id": "3A33FCEB9B74CC15!4871",
// 	        "name": "wildlife",
// 	        "path": "/drive/root:/Misc/wildlife"
// 	      },
// 	      "size": 777835,
// 	      "webUrl": "https://1drv.ms/i/s!ABXMdJvr_DM6pgg",
// 	      "file": {
// 	        "hashes": {
// 	          "sha1Hash": "DF7BE9DC4F467187783ACA68C7CE98E4DF2172D0"
// 	        },
// 	        "mimeType": "image/jpeg"
// 	      },
// 	      "fileSystemInfo": {
// 	        "createdDateTime": "2017-06-04T20:40:22.48Z",
// 	        "lastModifiedDateTime": "2009-07-14T05:32:31.674Z"
// 	      },
// 	      "image": {
// 	        "height": 768,
// 	        "width": 1024
// 	      },
// 	      "photo": {
// 	        "takenDateTime": "2008-02-18T05:07:31Z"
// 	      },
// 	      "searchResult": {
// 	        "onClickTelemetryUrl": "https://www.bing.com/personalsearchclick?IG=D10F15177AE54D49A97F361270D53290&CID=3A33FCEB9B74CC150000000000000000&ID=DevEx%2c5005&q=penguins&resid=3A33FCEB9B74CC15%214872"
// 	      }
// 	    }
// 	  ]
// 	}

CkJsonObject_Dispose(json);
CkHttp_Dispose(http);
CkStringBuilder_Dispose(sbResults);
CkDateTime_Dispose(lastMod);
CkDateTime_Dispose(photoTaken);

end;