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Objective-C Examples

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(Objective-C) Google Sheets - Update (Set Values in a Range)

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.

Note: This example requires Chilkat v9.5.0.76 or greater.

Chilkat Objective-C Library Downloads

MAC OS X (Cocoa) Libs

iOS Libs

#import <CkoJsonObject.h>
#import <CkoHttp.h>
#import <NSString.h>
#import <CkoHttpResponse.h>

//  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..
CkoJsonObject *jsonToken = [[CkoJsonObject alloc] init];
BOOL success = [jsonToken LoadFile: @"qa_data/tokens/googleSheets.json"];
if ([jsonToken HasMember: @"access_token"] == NO) {
    NSLog(@"%@",@"No access token found.");
    return;
}

CkoHttp *http = [[CkoHttp alloc] init];
http.AuthToken = [jsonToken StringOf: @"access_token"];

//  First get the cells in the range A1:B5
[http SetUrlVar: @"range" value: @"Sheet1!A1:B5"];
[http SetUrlVar: @"spreadsheetId" value: @"1_SO2L-Y6nCayNpNppJLF0r9yHB2UnaCleGCKeE4O0SA"];
NSString *jsonResponse = [http QuickGetStr: @"https://sheets.googleapis.com/v4/spreadsheets/{$spreadsheetId}/values/{$range}"];
if (http.LastMethodSuccess != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

NSLog(@"%@",jsonResponse);

CkoJsonObject *json = [[CkoJsonObject alloc] init];
json.EmitCompact = NO;
[json Load: 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

json.I = [NSNumber numberWithInt:3];
json.J = [NSNumber numberWithInt:1];
[json UpdateString: @"values[i][j]" value: @"$120"];
json.I = [NSNumber numberWithInt:4];
[json UpdateString: @"values[i][j]" value: @"$155.50"];

//  Show the updated JSON.
NSLog(@"%@",[json Emit]);

//  --------------------------------------------------------
//  Note: This example requires Chilkat v9.5.0.76 or greater.
//  --------------------------------------------------------

//  Update the Google Sheet using a PUT request.
json.EmitCompact = YES;
NSString *urlToUpdate = @"https://sheets.googleapis.com/v4/spreadsheets/{$spreadsheetId}/values/{$range}?valueInputOption=USER_ENTERED";
NSString *xyz = [http QuickGetStr: urlToUpdate];
CkoHttpResponse *resp = [http PText: @"PUT" url: urlToUpdate textData: [json Emit] charset: @"utf-8" contentType: @"application/json" md5: NO gzip: NO];
if (http.LastMethodSuccess != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

//  Examine the response..
NSLog(@"%@%d",@"response status code = ",[resp.StatusCode intValue]);
NSLog(@"%@",@"response body:");
NSLog(@"%@",resp.BodyStr);

//  A sample response body:

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

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