(Objective-C) Google Sheets - Read a Single Range

Reads the values stored in the range Sheet1!A1:B5 and returns them in the response.

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#import <CkoJsonObject.h>
#import <CkoHttp.h>
#import <NSString.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"];
http.SessionLogFilename = @"qa_output/sessionLog.txt";

// Get the cells defined by the range A1:B5
NSString *jsonResponse = [http QuickGetStr: @"https://sheets.googleapis.com/v4/spreadsheets/spreadsheetId/values/Sheet1!A1:B5"];
if (http.LastMethodSuccess != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

NSLog(@"%@",jsonResponse);

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json Load: jsonResponse];

// A sample response is shown below.
// To generate the parsing source code for a JSON response, paste
// the JSON into this online tool: Generate JSON parsing code

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

int i;
int count_i;
int j;
int count_j;

NSString *range = [json StringOf: @"range"];
NSString *majorDimension = [json StringOf: @"majorDimension"];
i = 0;
count_i = [[json SizeOfArray: @"values"] intValue];
while (i < count_i) {
    json.I = [NSNumber numberWithInt: i];
    j = 0;
    count_j = [[json SizeOfArray: @"values[i]"] intValue];
    while (j < count_j) {
        json.J = [NSNumber numberWithInt: j];
        NSString *strVal = [json StringOf: @"values[i][j]"];
        j = j + 1;
    }

    i = i + 1;
}