mongo-crud

const MongoClient = require('mongodb').MongoClient
const faker = require('faker');

if (process.argv[2] === "1") {
	var DATA = [];
	DATA[0] = {
		fname: "AAA", 
		lname: "BBB", 
		age: 20, 
		gender: "M", 
		address: "AHMD",
		phone: "9909970570"
	}
	for(let i=0; i<500; i++) {
		let data = {
				fname: faker.name.findName(), 
				lname: faker.name.lastName(), 
				age: 20, 
				gender: "M", 
				address: faker.address.city(),
				phone: faker.phone.phoneNumber(),
			};
		DATA[i+1] = data;
	}
	MongoClient.connect("mongodb://localhost/batchmarkTest", function(err, DB) {
	 if(err) {
			console.dangerLog(err);
		} else {
			console.log("connected");
			console.endTime('time to insert 500 records:');
	    DB.collection("batchTest").insertMany(DATA, function(error, inserted) {
	      if(error) {
	        console.error(error);
	      }
	    }); // end of insert
		}
		console.endtime('time to insert 500 records:');
		DB.close();
	});
} else if(process.argv[2] === "2") {
	MongoClient.connect("mongodb://localhost/batchmarkTest", function(err, DB) {
	  if(err) {
			console.log(err);
		} else {
			//============Insert==============
				console.endTime('time to insert new record:');
				DB.collection('batchTest').insert({
					fname: faker.name.findName(), 
					lname: faker.name.lastName(), 
					age: 20, 
					gender: "M", 
					address: faker.address.city(),
					phone: faker.phone.phoneNumber(),
				}, {w: 1}, function(err, records){
					if(err) {
						console.log(err)
					} else {
						console.endtime('time to insert new record:');
					}
				});
			//================================

			//============Find================
				console.endTime('time to display all records:');
				DB.collection("batchTest").find(
				  { fname: "AAA" },  function(err, records){
					if(err) {
						console.log(err)
					} else {
						console.endtime('time to display all records:');
					}
				})
			//================================

			//==========Find and update=======
			  console.endTime('time to find and modify record:');
				DB.collection('batchTest').findAndModify(
				  {lname: 'BBB'}, // query
				  [['_id','asc']],  // sort order
				  {$set: {fname: 'latest fname'}}, // replacement, replaces only the field "hi"
				  {}, // options
					function(err, records) {
						if(err) {
							console.log(err)
						} else {
							console.endtime('time to find and modify record:');
						}
				});
			//================================

			//============Update==============
			  console.endTime('time to modify record:');
				DB.collection("batchTest").update(
					{fname:"latest fname"}, 
					{$set: {lname:"latest lname"}},
					function(err, records) {
						if(err) {
							console.log(err)
						} else {
							console.endtime('time to modify record:');
						}
				});
			//================================
			}
		DB.close();
	});
} else {
	console.informLog("Enter '1' as argument to insert sample records(500 records) and '2' for batchmark test.")
}