Pascal (Lazarus/Delphi)

OneDrive -- Upload Binary Data from Memory

See more OneDrive Examples

Demonstrates how to upload binary data directly from memory to the signed-in user's OneDrive. This uses OneDrive's simple upload API to upload in a single API call, which only supports uploads up to 4MB in size. (See the other example(s) for uploading larger files.) Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Http,
  Chilkat.BinData,
  Chilkat.HttpResponse,
  Chilkat.HttpRequest,
  Chilkat.JsonObject;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  json: TJsonObject;
  http: THttp;
  pdfBytes: TBinData;
  req: THttpRequest;
  resp: THttpResponse;

begin
  success := False;

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

  //  This example uses the OAuth client credentials flow.
  //  See How to Create an Azure App Registration for OAuth 2.0 Client Credentials

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

  http := THttp.Create;
  http.AuthToken := json.Emit();

  //  First, let's download a PDF from the web directly into memory.  Then upload the PDF
  //  to OneDrive.
  pdfBytes := TBinData.Create;
  success := http.QuickGetBd('https://www.chilkatsoft.com/data/pdf/sample.pdf',pdfBytes);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  //  Upload the PDF to our OneDrive to /TestDir/sample.pdf
  req := THttpRequest.Create;
  req.HttpVerb := 'PUT';

  //  Use your actual user-id instead of "4fe732c3-322e-4a6b-b729-2fd1eb5c6104"
  req.Path := '/v1.0/users/4fe732c3-322e-4a6b-b729-2fd1eb5c6104/drive/root:/TestDir/sample.pdf:/content';
  req.LoadBodyFromBd(pdfBytes);
  //  If you're uploading a file and don't know what the Content-Type should be,
  //  just use "application/octet-stream".  
  req.ContentType := 'application/pdf';

  resp := THttpResponse.Create;
  success := http.HttpSReq('graph.microsoft.com',443,True,req,resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  //  If successful, a 201 status code is returned, with the driveItem object in the response body for the newly created file.
  json.EmitCompact := False;
  json.Load(resp.BodyStr);

  if (resp.StatusCode <> 201) then
    begin
      WriteLn(json.Emit());
      WriteLn('Response status = ' + resp.StatusCode);
      Exit;
    end;

  //  Success.  Examine the driveItem JSON object:
  WriteLn(json.Emit());
  WriteLn('-- Success --');

  //  Here is a sample successful response:

  //  {
  //    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('me')/drive/root/$entity",
  //    "@microsoft.graph.downloadUrl": "https://s5ucmg.dm2301.livefilestore.com/y4ppZYP8kjqVleyrDvphxvO8vSRxNRcYn75t5K6gNARH1cDMI3CBH3XvZ7nNHJoKMg7lQo41XLaaYiQDw1EdRg9QNTv_rtDXOnUwaipJfJyTlNXh6WOljIXOm1R2fHDk2tDq_9C9gB-prnN2NxhnXZw08YQyTnpHZXIz1w9xBxqkPn0tzF-aQSldx5e15t93Ftd1AqigReYgpF1gXtIISQs7hk2JRAYhW2d84HxEuqDXdw",
  //    "createdBy": {
  //      "application": {
  //        "displayName": "Chilkat",
  //        "id": "441c9990"
  //      },
  //      "user": {
  //        "displayName": "Matt Smith",
  //        "id": "3a33fceb9b74cc15"
  //      }
  //    },
  //    "createdDateTime": "2017-06-03T18:18:17.7Z",
  //    "cTag": "aYzozQTMzRkNFQjlCNzRDQzE1ITQ4NjcuMjU3",
  //    "eTag": "aM0EzM0ZDRUI5Qjc0Q0MxNSE0ODY3LjA",
  //    "id": "3A33FCEB9B74CC15!4867",
  //    "lastModifiedBy": {
  //      "application": {
  //        "displayName": "Chilkat",
  //        "id": "441c9990"
  //      },
  //      "user": {
  //        "displayName": "Matt Smith",
  //        "id": "3a33fceb9b74cc15"
  //      }
  //    },
  //    "lastModifiedDateTime": "2017-06-03T18:18:17.7Z",
  //    "name": "sample.pdf",
  //    "parentReference": {
  //      "driveId": "3a33fceb9b74cc15",
  //      "id": "3A33FCEB9B74CC15!4862",
  //      "name": "someFolder",
  //      "path": "/drive/root:/someFolder"
  //    },
  //    "size": 178399,
  //    "webUrl": "https://1drv.ms/b/s!ABXMdJvr_DM6pgM",
  //    "file": {
  //      "hashes": {
  //        "sha1Hash": "1456955C84C2DAC9DA613DC80E3017533BDC368A"
  //      },
  //      "mimeType": "application/pdf"
  //    },
  //    "fileSystemInfo": {
  //      "createdDateTime": "2017-06-03T18:18:17.7Z",
  //      "lastModifiedDateTime": "2017-06-03T18:18:17.7Z"
  //    }
  //  }


  json.Free;
  http.Free;
  pdfBytes.Free;
  req.Free;
  resp.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.