TODO: Add description

If available in Hex, the package can be installed by adding qr_chk to your list of dependencies in mix.exs:

def deps do
  [{:qr_chk, "~> 0.1.0"}]
end

Documentation can be generated with ExDoc and published on HexDocs. Once published, the docs can be found at https://hexdocs.pm/qr_chk.

To configure lager's backends, you use an application variable (probably in your app.config):

config :qr_chk,
  phx_name: :im_webserver, #phoenix应用名称
  file_exp: 60 #二维码图片存在时长（s)

  plug Plug.Static,    
    only: ~w(... qrchk)