nse-business-time/index.js

Calculate Business Time for NSE,BSE,MCX and NFO

const hldy_lst  = require('./src/utils/holiday-list');
const date_util = require('./src/date-mgmt/open-and-scheduling-time');
const _cnst     = require('./src/utils/constants');
const momentz   = require('moment-timezone');

const map       = new Map();

function _init(){
    require('dotenv').config({path: '.env'});
    require('./src/utils/firebase');
}

async function getNextSchedulingTime(exchange){
    let last_update = map.get('last_update');
    let currentTime = momentz().tz(_cnst.TIME_ZONE).valueOf();
    
    if(!last_update || (currentTime - last_update) > (7200000)){
        await hldy_lst.getHolidayList();
        map.set('last_update', currentTime);
    }
    return date_util.getNextSchedulingTime(exchange);
}

async function isOpen(exchange){
    let last_update = map.get('last_update');
    let currentTime = momentz().tz(_cnst.TIME_ZONE).valueOf();
    
    if(!last_update || (currentTime - last_update) > (7200000)){
        await hldy_lst.getHolidayList();
        map.set('last_update', currentTime);
    }
    return date_util.isOpen(exchange);
}

async function squareOffTime(exchange){
    let last_update = map.get('last_update');
    let currentTime = momentz().tz(_cnst.TIME_ZONE).valueOf();
    
    if(!last_update || (currentTime - last_update) > (7200000)){
        await hldy_lst.getHolidayList();
        map.set('last_update', currentTime);
    }
    return date_util.squareOffTime(exchange);
}

async function getTodayOpenTime(exchange){
    let last_update = map.get('last_update');
    let currentTime = momentz().tz(_cnst.TIME_ZONE).valueOf();
    
    if(!last_update || (currentTime - last_update) > (7200000)){
        await hldy_lst.getHolidayList();
        map.set('last_update', currentTime);
    }
    return date_util.getTodayOpenTime(exchange);
}

exports.getNextSchedulingTime = getNextSchedulingTime;
exports.isOpen                = isOpen;
exports.squareOffTime         = squareOffTime;
exports._init                 = _init;
exports.getTodayOpenTime      = getTodayOpenTime;

// async function marketsStartTime(){

//     await hldy_lst.getHolidayList();
//     //let yesterday = date_util.getLastWorkingDay();
//     //let today     = date_util.getNextWorkingDay(yesterday);
//     //let tomorrow  = date_util.getNextWorkingDay(today);

//     //console.log('yesterday ', date_util.covnertToString(yesterday), " today ", date_util.covnertToString(today), " tomorrow ", date_util.covnertToString(tomorrow));

//    // console.log(date_util.marketOpenTime(today));
//    // console.log(date_util.marketCloseTime(today));

//    console.log(date_util.getNextSchedulingTime('MCX'));
//    console.log(date_util.isOpen('MCX'));

// //    let openTime = date_util.getLastOpenTime('MCX', moment().valueOf());
// //    console.log(moment(openTime).format(constants.DATE_TIME_FORMAT));
// }

// marketsStartTime();