(Node.js) Google Sheets - Read a Single Range

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

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // 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..
    var jsonToken = new chilkat.JsonObject();
    var success = jsonToken.LoadFile("qa_data/tokens/googleSheets.json");
    if (jsonToken.HasMember("access_token") == false) {
        console.log("No access token found.");
        return;
    }

    var http = new chilkat.Http();
    http.AuthToken = jsonToken.StringOf("access_token");
    http.SessionLogFilename = "qa_output/sessionLog.txt";

    // Get the cells defined by the range A1:B5
    var jsonResponse = http.QuickGetStr("https://sheets.googleapis.com/v4/spreadsheets/spreadsheetId/values/Sheet1!A1:B5");
    if (http.LastMethodSuccess !== true) {
        console.log(http.LastErrorText);
        return;
    }

    console.log(jsonResponse);

    var json = new chilkat.JsonObject();
    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"
    //     ]
    //   ]
    // }

    var i;
    var count_i;
    var j;
    var count_j;

    var range = json.StringOf("range");
    var majorDimension = json.StringOf("majorDimension");
    i = 0;
    count_i = json.SizeOfArray("values");
    while (i < count_i) {
        json.I = i;
        j = 0;
        count_j = json.SizeOfArray("values[i]");
        while (j < count_j) {
            json.J = j;
            var strVal = json.StringOf("values[i][j]");
            j = j+1;
        }

        i = i+1;
    }


}

chilkatExample();