(.NET Core C#) Google Sheets - Append Values to an Existing Spreadsheet

Appends values to an existing Google spreadsheet.

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//  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..
Chilkat.JsonObject jsonToken = new Chilkat.JsonObject();
bool success = jsonToken.LoadFile("qa_data/tokens/googleSheets.json");
if (jsonToken.HasMember("access_token") == false) {
    Debug.WriteLine("No access token found.");
    return;
}

Chilkat.Http http = new Chilkat.Http();
http.AuthToken = jsonToken.StringOf("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"
//      ]
//    ]
//  }

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.UpdateString("range","Sheet1!A1:B5");
json.UpdateString("majorDimension","ROWS");

json.I = 0;
json.J = 1;
json.UpdateString("values[i][j]","Paint");
json.J = 1;
json.UpdateString("values[i][j]","$100");

json.I = 1;
json.J = 0;
json.UpdateString("values[i][j]","Brakes");
json.J = 1;
json.UpdateString("values[i][j]","$100");

json.I = 2;
json.J = 0;
json.UpdateString("values[i][j]","Totals");
json.J = 1;
json.UpdateString("values[i][j]","$335.50");

json.EmitCompact = false;
Debug.WriteLine(json.Emit());

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

http.SetUrlVar("spreadsheetId","1_SO2L-Y6nCayNpNppJLF0r9yHB2UnaCleGCKeE4O0SA");
http.SetUrlVar("range","Sheet1!A1:B5");
Chilkat.HttpResponse resp = http.PostJson("https://sheets.googleapis.com/v4/spreadsheets/{$spreadsheetId}/values/{$range}:append?valueInputOption=USER_ENTERED",json.Emit());
if (http.LastMethodSuccess != true) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Debug.WriteLine("response status code = " + Convert.ToString(resp.StatusCode));
Debug.WriteLine("response JSON = " + resp.BodyStr);

//  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:
//