cordova-plugin-customurlscheme
Launch your app by using this URL: mycoolapp://, you can add a path and even pass params like this: mycoolerapp://somepath?foo=bar
phonegap-plugin-barcodescanner-ld
You can use the BarcodeScanner plugin to scan different types of barcodes (using the device's camera) and get the metadata encoded in them for processing within your application.