--FILE--un passeggero mette il suo smartphone al di sopra di un tornello per avere il codice QR su un mobile app scansionati a pagare per il biglietto della metropolitana via Alipay o Cina Uni
--FILE--A passenger puts her smartphone above a turnstile to have the QR code on a mobile app scanned to pay for subway ticket via Alipay or China UnionPay and enter the metro station in Shanghai, China, 20 January 2018. China's mobile payments totaled 81 trillion yuan (about 12.77 trillion U.S. dollars) as of October 2017, the world's largest volume, official data showed. The volume was much more than the whole of 2016, which stood at 58.8 trillion yuan, according to the Ministry of Industry and Information Technology. The country's third-party mobile payment market has continued rapid expansion as cashless transactions have gained increasing popularity across the country. The value of third-party e-payments in China has grown at an annual rate of more than 100 percent since 2015, offering consumers an alternative to bank payment channels at lower transaction costs, global rating agency Moody's said in a report earlier last year.