hello_erlang.app.src

{application, hello_erlang, [
  {description, ""},
  {vsn, "0.1.0"},
  {id, "git"},
  {modules, []},
  {registered, []},
  {applications, [
    kernel,
    stdlib,
    cowboy,
    mongodb,
    jiffy
  ]},
  {mod, {hello_erlang_app, []}},
  {env,
    [
      {
        mongodb_pools,
        [
          {
           mg_pool1,
           [
             {size, 10},
             {max_overflow, 20}
           ],
           [
             {hostname, "127.0.0.1"},
             {database, "user"},
             {username, "zhk"},
             {password, "zhk"}
           ]
          }
        ]
      }
    ]
  }
]}.