(Delphi DLL) Google Sheets - Append Values to an Existing Spreadsheet

Appends values to an existing Google spreadsheet.

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, HttpResponse, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
jsonToken: HCkJsonObject;
success: Boolean;
http: HCkHttp;
json: HCkJsonObject;
resp: HCkHttpResponse;

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

// This example uses a previously obtained access token having permission for the 
// Google Sheets scope.

// In this example, Get Google Sheets OAuth2 Access Token, the access
// token was saved to a JSON file.  This example fetches the access token from the file..
jsonToken := CkJsonObject_Create();
success := CkJsonObject_LoadFile(jsonToken,'qa_data/tokens/googleSheets.json');
if (CkJsonObject_HasMember(jsonToken,'access_token') = False) then
  begin
    Memo1.Lines.Add('No access token found.');
    Exit;
  end;
http := CkHttp_Create();
CkHttp_putAuthToken(http,CkJsonObject__stringOf(jsonToken,'access_token'));

// To append values to an existing spreadsheet, our HTTP request body will
// contain JSON in the format of a "ValueRange".  For example, the spreadsheet we'll be
// adding to in this example looks like this:

// 

// The JSON ValueRange for the cells in the above spreadsheet is:
// {
//   "range": "Sheet1!A1:B5",
//   "majorDimension": "ROWS",
//   "values": [
//     [
//       "Item",
//       "Cost"
//     ],
//     [
//       "Wheel",
//       "$20.50"
//     ],
//     [
//       "Door",
//       "$15"
//     ],
//     [
//       "Engine",
//       "$100"
//     ],
//     [
//       "Totals",
//       "$135.50"
//     ]
//   ]
// }

// This example will append 6 cells (3 rows / 2 columns).
// We'll be appending the following:
// 
// "Paint", "$100"
// "Brakes", "$100"
// "New Total", "$335.50"
// 

// The range of cells we'll be appending is A1:B5
// Therefore, the ValueRange JSON we'll be sending in our POST body is:

// {
//   "range": "Sheet1!A1:B5",
//   "majorDimension": "ROWS",
//   "values": [
//     [
//       "Paint",
//       "$100"
//     ],
//     [
//       "Brakes",
//       "$100"
//     ],
//     [
//       "New Total",
//       "$335.50"
//     ]
//   ]
// }

json := CkJsonObject_Create();
CkJsonObject_UpdateString(json,'range','Sheet1!A1:B5');
CkJsonObject_UpdateString(json,'majorDimension','ROWS');

CkJsonObject_putI(json,0);
CkJsonObject_putJ(json,1);
CkJsonObject_UpdateString(json,'values[i][j]','Paint');
CkJsonObject_putJ(json,1);
CkJsonObject_UpdateString(json,'values[i][j]','$100');

CkJsonObject_putI(json,1);
CkJsonObject_putJ(json,0);
CkJsonObject_UpdateString(json,'values[i][j]','Brakes');
CkJsonObject_putJ(json,1);
CkJsonObject_UpdateString(json,'values[i][j]','$100');

CkJsonObject_putI(json,2);
CkJsonObject_putJ(json,0);
CkJsonObject_UpdateString(json,'values[i][j]','Totals');
CkJsonObject_putJ(json,1);
CkJsonObject_UpdateString(json,'values[i][j]','$335.50');

CkJsonObject_putEmitCompact(json,False);
Memo1.Lines.Add(CkJsonObject__emit(json));

// Send the POST to:
// https://sheets.googleapis.com/v4/spreadsheets/{spreadsheetId}/values/{range}:append?valueInputOption=USER_ENTERED

CkHttp_SetUrlVar(http,'spreadsheetId','1_SO2L-Y6nCayNpNppJLF0r9yHB2UnaCleGCKeE4O0SA');
CkHttp_SetUrlVar(http,'range','Sheet1!A1:B5');
resp := CkHttp_PostJson(http,'https://sheets.googleapis.com/v4/spreadsheets/{$spreadsheetId}/values/{$range}:append?valueInputOption=USER_ENTERED',CkJsonObject__emit(json));
if (CkHttp_getLastMethodSuccess(http) <> True) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

Memo1.Lines.Add('response status code = ' + IntToStr(CkHttpResponse_getStatusCode(resp)));
Memo1.Lines.Add('response JSON = ' + CkHttpResponse__bodyStr(resp));

CkHttpResponse_Dispose(resp);

// Sample output:
// 
// response status code = 200
// response JSON = {
//   "spreadsheetId": "1_SO2L-Y6nCayNpNppJLF0r9yHB2UnaCleGCKeE4O0SA",
//   "tableRange": "Sheet1!A1:B5",
//   "updates": {
//     "spreadsheetId": "1_SO2L-Y6nCayNpNppJLF0r9yHB2UnaCleGCKeE4O0SA",
//     "updatedRange": "Sheet1!A6:B8",
//     "updatedRows": 3,
//     "updatedColumns": 2,
//     "updatedCells": 6
//   }
// }
// 

// Our Google Spreadsheet now looks like this:
// 

CkJsonObject_Dispose(jsonToken);
CkHttp_Dispose(http);
CkJsonObject_Dispose(json);

end;