usb-pos-printer.js

const { usb } = require('webusb')

async function initPrinter() {
	const printer = await usb.requestDevice({
		filters: [
			{
				vendorId: 0x0416,
				productId: 0x5011
			}
		]
	})

	await printer.open();
	await printer.selectConfiguration(1)
	await printer.claimInterface(0)
	await printer.controlTransferOut({
		requestType: 'class',
		recipient: 'interface',
		request: 0x22,
		value: 0x01,
		index: 0
	})

	return data => printer.transferOut(1, data)
}

module.exports = initPrinter