QR Code is short for 'Quick Response' Code. It is a square-shaped of two-dimensional code that can be read easily by smartphones and other mobile devices...
A Barcode is 2-dimensional. Unlike QR codes, it only contains information horizontally. The meanings of each character in the code are listed in a database...
Through a REST API you can enable your AWS Lambda to work as a stand-alone component and provide easy integration for other developers adopting your algorithm...