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Objective-C

Google Sheets - Append Values to an Existing Spreadsheet

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Appends values to an existing Google spreadsheet.

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Objective-C 
#import <CkoJsonObject.h>
#import <CkoHttp.h>
#import <CkoHttpResponse.h>

BOOL success = NO;

//  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];
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"];

//  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:

//  image

//  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"
//      ]
//    ]
//  }

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json UpdateString: @"range" value: @"Sheet1!A1:B5"];
[json UpdateString: @"majorDimension" value: @"ROWS"];

json.I = [NSNumber numberWithInt:0];
json.J = [NSNumber numberWithInt:1];
[json UpdateString: @"values[i][j]" value: @"Paint"];
json.J = [NSNumber numberWithInt:1];
[json UpdateString: @"values[i][j]" value: @"$100"];

json.I = [NSNumber numberWithInt:1];
json.J = [NSNumber numberWithInt:0];
[json UpdateString: @"values[i][j]" value: @"Brakes"];
json.J = [NSNumber numberWithInt:1];
[json UpdateString: @"values[i][j]" value: @"$100"];

json.I = [NSNumber numberWithInt:2];
json.J = [NSNumber numberWithInt:0];
[json UpdateString: @"values[i][j]" value: @"Totals"];
json.J = [NSNumber numberWithInt:1];
[json UpdateString: @"values[i][j]" value: @"$335.50"];

json.EmitCompact = NO;
NSLog(@"%@",[json Emit]);

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

[http SetUrlVar: @"spreadsheetId" value: @"1_SO2L-Y6nCayNpNppJLF0r9yHB2UnaCleGCKeE4O0SA"];
[http SetUrlVar: @"range" value: @"Sheet1!A1:B5"];
CkoHttpResponse *resp = [[CkoHttpResponse alloc] init];
success = [http HttpJson: @"POST" url: @"https://sheets.googleapis.com/v4/spreadsheets/{$spreadsheetId}/values/{$range}:append?valueInputOption=USER_ENTERED" json: json contentType: @"application/json" response: resp];
if (success == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

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