(C) Google Sheets - Append Values to an Existing Spreadsheet

Appends values to an existing Google spreadsheet.

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#include <C_CkJsonObject.h>
#include <C_CkHttp.h>
#include <C_CkHttpResponse.h>

void ChilkatSample(void)
    {
    HCkJsonObject jsonToken;
    BOOL success;
    HCkHttp http;
    HCkJsonObject json;
    HCkHttpResponse resp;

    //  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) {
        printf("No access token found.\n");
        CkJsonObject_Dispose(jsonToken);
        return;
    }

    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);
    printf("%s\n",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) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkJsonObject_Dispose(jsonToken);
        CkHttp_Dispose(http);
        CkJsonObject_Dispose(json);
        return;
    }

    printf("response status code = %d\n",CkHttpResponse_getStatusCode(resp));
    printf("response JSON = %s\n",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);

    }