Javascript/Node.js/mongosh shell function to dump collections to .json file

dumpCollection.js

// let db = connect('...')
let fs = require('fs')

function dumpCollection(col_name, dump_path)  {
	let col = db[col_name].find().toArray();
	if (!dump_path) {
		dump_path = './backup/'
	}
	fs.writeFile(dump_path + col_name + '.json', JSON.stringify(col), function (err) {
		if (err) {
			console.log("Error: " + err);
		}
	});
}