EventSeeder.js.save

//INSTALL : npm install google-spreadsheet
const GoogleSpreadsheet = require('google-spreadsheet');
const {promisify}=require('util');
var mongoose=require('mongoose'),
LocalUser = require('./models/LocalUser.js');
GoogleUser = require('./models/GoogleUser.js');

//CONNECTION
mongoose.connect("mongodb://localhost:27017/tirutsava2020", {useNewUrlParser: true, useCreateIndex: true})
    .then(() => console.log('Database is Connected...'))
    .catch((err) => console.log(err));



const creds = require('./client_secret.json');

//FAQs Part.

function printQuery(event){
	console.log(event); //For Debugging purpose
}

async function accessSpreadsheet(){
	const doc = new GoogleSpreadsheet('1sdOntCOMEJPGmdDKycHOBaC_-kqRyOQS6vkahJQKFAw');
	await promisify(doc.useServiceAccountAuth)(creds);
	const info = await promisify(doc.getInfo)()
	console.log(info.worksheets.length);
	var sheet=info.worksheets[0];
	await doc.removeWorksheet(sheet);
	sheet = await doc.addWorkshee	const rows = await promisify(sheet.getRows)({
		offset:1
	});
	rows.forEach(async row =>{
		// console.log(row);
		// printFAQ(row);
		//await row.del();
	});
	
	//DELETING OLDER ENTRIES, BEFORE WRITING AFRESH.
	for(var i=0;i<rows.length;i++){
		if(rows[i])
		await rows[i].del();
	}
	
	//CREATING A NEW ROW:
	LocalUser.find({registeredeventids: 25},async function(err, users){
		users.forEach(async (user) =>{
			var row={
				Name: user.name,
				Mail: user.email
			};
			await promisify(sheet.addRow)(row);
		});
	});
	GoogleUser.find({registeredeventids: 25},async function(err, users){
		users.forEach(async (user) =>{
			var row={
				Name: user.name,
				Mail: user.email
			};
			await promisify(sheet.addRow)(row);
		});
	});
	
}

accessSpreadsheet();