Delphi DLL Google Drive: Rename a File (Update a File's MetaData)

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Updates a file's metadata and/or content with patch semantics. (This example renames the file having id = 1R_70heIyzIAu1_u0prXbYcaIiJRVkgBl)

Documentation: https://developers.google.com/drive/v3/reference/files/update

var
rest: HCkRest;
success: Boolean;
oauth2: HCkOAuth2;
jsonReq: HCkJsonObject;
sbReq: HCkStringBuilder;
sbJson: HCkStringBuilder;
json: HCkJsonObject;
kind: PWideChar;
id: PWideChar;
name: PWideChar;
mimeType: PWideChar;
teamDriveId: PWideChar;

begin
rest := CkRest_Create();

//   Provide a previously obtained OAuth2 access token.
oauth2 := CkOAuth2_Create();
CkOAuth2_putAccessToken(oauth2,'OAUTH2_ACCESS_TOKEN');
CkRest_SetAuthOAuth2(rest,oauth2);

success := CkRest_Connect(rest,'www.googleapis.com',443,True,True);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

CkRest_AddQueryParam(rest,'includeTeamDriveItems','true');
CkRest_AddQueryParam(rest,'supportsTeamDrives','true');

//  The following code creates the JSON request body.
//  The JSON created by this code is shown below.
jsonReq := CkJsonObject_Create();
CkJsonObject_UpdateString(jsonReq,'name','three_penguins.jpg');

sbReq := CkStringBuilder_Create();
CkJsonObject_EmitSb(jsonReq,sbReq);

CkRest_AddHeader(rest,'Content-Type','application/json');

sbJson := CkStringBuilder_Create();
success := CkRest_FullRequestSb(rest,'PATCH','/drive/v3/files/1R_70heIyzIAu1_u0prXbYcaIiJRVkgBl',sbReq,sbJson);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

if (CkRest_getResponseStatusCode(rest) <> 200) then
  begin
    Memo1.Lines.Add('Received error response code: ' + IntToStr(CkRest_getResponseStatusCode(rest)));
    Memo1.Lines.Add('Response body:');
    Memo1.Lines.Add(CkStringBuilder__getAsString(sbJson));
    Exit;
  end;

json := CkJsonObject_Create();
CkJsonObject_LoadSb(json,sbJson);

//  The following code parses the JSON response.
//  A sample JSON response is shown below the sample code.

kind := CkJsonObject__stringOf(json,'kind');
id := CkJsonObject__stringOf(json,'id');
name := CkJsonObject__stringOf(json,'name');
mimeType := CkJsonObject__stringOf(json,'mimeType');
teamDriveId := CkJsonObject__stringOf(json,'teamDriveId');

Memo1.Lines.Add('Example Completed.');

CkRest_Dispose(rest);
CkOAuth2_Dispose(oauth2);
CkJsonObject_Dispose(jsonReq);
CkStringBuilder_Dispose(sbReq);
CkStringBuilder_Dispose(sbJson);
CkJsonObject_Dispose(json);

Sample JSON Request Body

{
    "name": "three_penguins.jpg"
}

Sample JSON Response Body

{
  "kind": "drive#file",
  "id": "1R_70heIyzIAu1_u0prXbYcaIiJRVkgBl",
  "name": "three_penguins.jpg",
  "mimeType": "image/jpeg",
  "teamDriveId": "0AEd3EhGff2SaUk9PVA"
}