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C

Google Sheets - Update (Set Values in a Range)

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Sets values in a range of a spreadsheet. This example will demonstrate by first getting a range, then changing some values in the JSON, and then HTTPS PUT the changes back to the Google Sheet.

Chilkat C Downloads

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

void ChilkatSample(void)
    {
    BOOL success;
    HCkJsonObject jsonToken;
    HCkHttp http;
    const char *jsonResponse;
    HCkJsonObject json;
    const char *urlToUpdate;
    const char *xyz;
    HCkHttpResponse resp;

    success = FALSE;

    // 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"));

    // First get the cells in the range A1:B5
    CkHttp_SetUrlVar(http,"range","Sheet1!A1:B5");
    CkHttp_SetUrlVar(http,"spreadsheetId","1_SO2L-Y6nCayNpNppJLF0r9yHB2UnaCleGCKeE4O0SA");
    jsonResponse = CkHttp_quickGetStr(http,"https://sheets.googleapis.com/v4/spreadsheets/{$spreadsheetId}/values/{$range}");
    if (CkHttp_getLastMethodSuccess(http) == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkJsonObject_Dispose(jsonToken);
        CkHttp_Dispose(http);
        return;
    }

    printf("%s\n",jsonResponse);

    json = CkJsonObject_Create();
    CkJsonObject_putEmitCompact(json,FALSE);
    CkJsonObject_Load(json,jsonResponse);

    // A sample response is shown below.

    // {
    //   "range": "Sheet1!A1:B5",
    //   "majorDimension": "ROWS",
    //   "values": [
    //     [
    //       "Item",
    //       "Cost"
    //     ],
    //     [
    //       "Wheel",
    //       "$20.50"
    //     ],
    //     [
    //       "Door",
    //       "$15"
    //     ],
    //     [
    //       "Engine",
    //       "$100"
    //     ],
    //     [
    //       "Totals",
    //       "$135.50"
    //     ]
    //   ]
    // }

    // We're going to change the cost of the Engine to $120, and the Totals to $155.50

    CkJsonObject_putI(json,3);
    CkJsonObject_putJ(json,1);
    CkJsonObject_UpdateString(json,"values[i][j]","$120");
    CkJsonObject_putI(json,4);
    CkJsonObject_UpdateString(json,"values[i][j]","$155.50");

    // Show the updated JSON.
    printf("%s\n",CkJsonObject_emit(json));

    // Update the Google Sheet using a PUT request.
    CkJsonObject_putEmitCompact(json,TRUE);
    urlToUpdate = "https://sheets.googleapis.com/v4/spreadsheets/{$spreadsheetId}/values/{$range}?valueInputOption=USER_ENTERED";
    xyz = CkHttp_quickGetStr(http,urlToUpdate);
    resp = CkHttpResponse_Create();
    success = CkHttp_HttpJson(http,"PUT",urlToUpdate,json,"application/json",resp);
    if (success == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkJsonObject_Dispose(jsonToken);
        CkHttp_Dispose(http);
        CkJsonObject_Dispose(json);
        CkHttpResponse_Dispose(resp);
        return;
    }

    // Examine the response..
    printf("response status code = %d\n",CkHttpResponse_getStatusCode(resp));
    printf("response body:\n");
    printf("%s\n",CkHttpResponse_bodyStr(resp));

    // A sample response body:

    // {
    //   "spreadsheetId": "1_SO2L-Y6nCayNpNppJLF0r9yHB2UnaCleGCKeE4O0SA",
    //   "updatedRange": "Sheet1!A1:B5",
    //   "updatedRows": 5,
    //   "updatedColumns": 2,
    //   "updatedCells": 10
    // }


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

    }