➜ bcbc -h

bcbc is a command for searching China's bankcard info

Usage:
  bcbc [command]

Available Commands:
  help        Help about any command
  list        List all bank card BINs
  random      Return a random bankcard
  search      Search bankcard info
  serve       Serve as a http server
  version     Print version and exit

Flags:
  -h, --help   help for bcbc

Use "bcbc [command] --help" for more information about a command.

$ curl http://127.0.0.1:3232/cardInfo.json\?cardNo\=6222021234567890123

> {"bin":"622202","bank":"ICBC","name":"中国工商银行","type":"DC","length":19}