(Node.js) Simple REST Example

Demonstrates a very simple RESTful API call to get a stock time series daily (quotes) from Alpha Vantage.

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

var os = require('os');
if (os.platform() == 'win32') {  
  var chilkat = require('@chilkat/ck-node23-win64'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node23-linux-arm');
    } else if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node23-linux-arm64');
    } else {
        var chilkat = require('@chilkat/ck-node23-linux-x64');
    }
} else if (os.platform() == 'darwin') {
  var chilkat = require('@chilkat/ck-node23-mac-universal');
}

function chilkatExample() {

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    var rest = new chilkat.Rest();

    // Connect to the REST server.
    var bTls = true;
    var port = 443;
    var bAutoReconnect = true;
    var success = rest.Connect("www.alphavantage.co",port,bTls,bAutoReconnect);
    if (success !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    // Get a stock quote:
    // Sending GET request to https://www.alphavantage.co/query?function=TIME_SERIES_DAILY&symbol=MSFT&apikey=my_api_key
    success = rest.AddQueryParam("function","TIME_SERIES_DAILY");
    success = rest.AddQueryParam("symbol","AAPL");
    success = rest.AddQueryParam("apikey","my_api_key");
    var responseJson = rest.FullRequestNoBody("GET","/query");
    if (rest.LastMethodSuccess !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    console.log(responseJson);

    // Sample response:
    // {
    //     "Meta Data": {
    //         "1. Information": "Daily Prices (open, high, low, close) and Volumes",
    //         "2. Symbol": "AAPL",
    //         "3. Last Refreshed": "2019-12-06",
    //         "4. Output Size": "Compact",
    //         "5. Time Zone": "US/Eastern"
    //     },
    //     "Time Series (Daily)": {
    //         "2019-12-06": {
    //             "1. open": "267.4800",
    //             "2. high": "271.0000",
    //             "3. low": "267.3000",
    //             "4. close": "270.7100",
    //             "5. volume": "25447644"
    //         },
    //         "2019-12-05": {
    //             "1. open": "263.7900",
    //             "2. high": "265.8900",
    //             "3. low": "262.7300",
    //             "4. close": "265.5800",
    //             "5. volume": "18661343"
    //         },
    //         "2019-12-04": {
    //             "1. open": "261.0700",
    //             "2. high": "263.3100",
    //             "3. low": "260.6800",
    //             "4. close": "261.7400",
    //             "5. volume": "16810388"
    //         },
    // ...
    //         "2019-07-18": {
    //             "1. open": "204.0000",
    //             "2. high": "205.8800",
    //             "3. low": "203.7000",
    //             "4. close": "205.6600",
    //             "5. volume": "18582161"
    //         }
    //     }
    // }

}

chilkatExample();