(Delphi DLL) 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.)

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, BinData, HttpResponse, HttpRequest, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
json: HCkJsonObject;
http: HCkHttp;
pdfBytes: HCkBinData;
success: Boolean;
req: HCkHttpRequest;
resp: HCkHttpResponse;

begin
// 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 := 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));

// First, let's download a PDF from the web directly into memory.  Then upload the PDF
// to OneDrive.
pdfBytes := CkBinData_Create();
success := CkHttp_QuickGetBd(http,'https://www.chilkatsoft.com/data/pdf/sample.pdf',pdfBytes);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

// Upload the PDF to our OneDrive to /TestDir/sample.pdf
req := CkHttpRequest_Create();
CkHttpRequest_putHttpVerb(req,'PUT');

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

resp := CkHttp_SynchronousRequest(http,'graph.microsoft.com',443,True,req);
if (CkHttp_getLastMethodSuccess(http) <> True) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

// If successful, a 201 status code is returned, with the driveItem object in the response body for the newly created file.
CkJsonObject_putEmitCompact(json,False);
CkJsonObject_Load(json,CkHttpResponse__bodyStr(resp));

if (CkHttpResponse_getStatusCode(resp) <> 201) then
  begin
    Memo1.Lines.Add(CkJsonObject__emit(json));
    Memo1.Lines.Add('Response status = ' + IntToStr(CkHttpResponse_getStatusCode(resp)));
    CkHttpResponse_Dispose(resp);
    Exit;
  end;

CkHttpResponse_Dispose(resp);

// Success.  Examine the driveItem JSON object:
Memo1.Lines.Add(CkJsonObject__emit(json));
Memo1.Lines.Add('-- 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"
//   }
// }

CkJsonObject_Dispose(json);
CkHttp_Dispose(http);
CkBinData_Dispose(pdfBytes);
CkHttpRequest_Dispose(req);

end;