(Delphi DLL) OneDrive -- Upload a String

See more OneDrive Examples

Uploads a string 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.

For more information, see https://learn.microsoft.com/en-us/onedrive/developer/rest-api/api/driveitem_put_content?view=odsp-graph-online

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, JsonObject, Http;

...

procedure TForm1.Button1Click(Sender: TObject);
var
json: HCkJsonObject;
http: HCkHttp;
someString: PWideChar;
url: PWideChar;
resp: PWideChar;

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));

// To upload in a single HTTP request, send a PUT request such as the following:

// 	PUT /v1.0/users/{user_id}/drive/root:/{item-path}:/content
// 	Content-type: text/plain
// 	Content-Length: <the actual content length>
// 
// 	The contents of the file goes here.

// Note: Chilkat automatically adds the Content-Length header.

// This example will upload a string that happens to be XML.
someString := '<location><city>Chicago</city><state>IL</state></location>';

// Upload to /TestDir/location.xml
CkHttp_SetUrlVar(http,'dest_path','/TestDir/location.xml');
CkHttp_SetUrlVar(http,'user_id','4fe732c3-322e-4a6b-b729-2fd1eb5c6104');
url := 'https://graph.microsoft.com/v1.0/users/{$user_id}/drive/root:{$dest_path}:/content';

resp := CkHttp__putText(http,url,someString,'utf-8','application/xml',False,False);
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 resp body for the newly created file.
CkJsonObject_putEmitCompact(json,False);
CkJsonObject_Load(json,resp);

if (CkHttp_getLastStatus(http) <> 201) then
  begin

    Memo1.Lines.Add(CkJsonObject__emit(json));
    Memo1.Lines.Add('Response status = ' + IntToStr(CkHttp_getLastStatus(http)));
    Exit;
  end;

// 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/y4pq2RG4U4D0uXV5Ee9kg_xRz3caBiFdiAe9arIAtryj6INGMv0KYr6E3HufsYkq7Xe_4Wue8mq4t-A_TU8zwKLqI91dH4eNx8XOUdJccqozk8jsLIy8TFkpaCcWuKbUjDPmed_38TbLIOtRofTE3o3Cw32_6b1T_ZTvgmA4erklHjz5f99ZF4P6jTGBfy6AjlK94aupem4AQ5BnWmcvBXVIuUajEyJT4M48SuWklvHtlc",
//   "createdBy": {
//     "application": {
//       "displayName": "Chilkat",
//       "id": "441c9990"
//     },
//     "user": {
//       "displayName": "Matt Smith",
//       "id": "3a33fceb9b74cc15"
//     }
//   },
//   "createdDateTime": "2017-06-03T17:56:38.413Z",
//   "cTag": "aYzozQTMzRkNFQjlCNzRDQzE1ITQ4NjYuMjU3",
//   "eTag": "aM0EzM0ZDRUI5Qjc0Q0MxNSE0ODY2LjA",
//   "id": "3A33FCEB9B74CC15!4866",
//   "lastModifiedBy": {
//     "application": {
//       "displayName": "Chilkat",
//       "id": "441c9990"
//     },
//     "user": {
//       "displayName": "Matt Smith",
//       "id": "3a33fceb9b74cc15"
//     }
//   },
//   "lastModifiedDateTime": "2017-06-03T17:56:38.413Z",
//   "name": "location.xml",
//   "parentReference": {
//     "driveId": "3a33fceb9b74cc15",
//     "id": "3A33FCEB9B74CC15!4862",
//     "name": "someFolder",
//     "path": "/drive/root:/someFolder"
//   },
//   "size": 58,
//   "webUrl": "https://1drv.ms/u/s!ABXMdJvr_DM6pgI",
//   "file": {
//     "hashes": {
//       "sha1Hash": "FE95A5A234123C45C03439CB33309991B751D7C9"
//     },
//     "mimeType": "application/xml"
//   },
//   "fileSystemInfo": {
//     "createdDateTime": "2017-06-03T17:56:38.413Z",
//     "lastModifiedDateTime": "2017-06-03T17:56:38.413Z"
//   }
// }

CkJsonObject_Dispose(json);
CkHttp_Dispose(http);

end;