const YahooFantasy = require('yahoo-fantasy');
const yf = new YahooFantasy(
  Y!APPLICATION_KEY,
  Y!APPLICATION_SECRET,
  tokenCallbackFn, // optional
  redirectUri // optional
);

yf.setUserToken(
  Y!OAuthAccessToken
);

// promise based
try {
  const teams = await yf.teams.fetch(
    [team_keys],
    [subresources], // optional
  );
} catch (e) {
  // handle error
}

// callback based
yf.teams.fetch(
  [team_keys], 
  [subresources], // optional
  callbackFn
);

[
  {
    "team_key": "328.l.34014.t.1",
    "team_id": "1",
    "name": "ChicksDigTheLongBall",
    "url": "http://baseball.fantasysports.yahoo.com/archive/mlb/2014/34014/1",
    "team_logo": "http://l.yimg.com/dh/ap/fantasy/img/mlb/icon_6_lg.gif",
    "waiver_priority": 4,
    "number_of_moves": "19",
    "number_of_trades": 0,
    "clinched_playoffs": 1,
    "managers": [
      {
        "manager_id": "1",
        "nickname": "--hidden--",
        "guid": "RYWP7M53IC626MGOX36ZWCM4FA",
        "is_commissioner": "1"
      }
    ],
    "stats": {
      "coverage_type": "season",
      "season": "2014",
      "stats": [
        {
          "stat_id": "60",
          "value": ""
        },
        {
          "stat_id": "7",
          "value": "676"
        },
        {
          "stat_id": "12",
          "value": "126"
        },
        {
          "stat_id": "13",
          "value": "623"
        },
        {
          "stat_id": "16",
          "value": "126"
        },
        {
          "stat_id": "3",
          "value": ".275"
        },
        {
          "stat_id": "50",
          "value": "1555.0"
        },
        {
          "stat_id": "28",
          "value": "101"
        },
        {
          "stat_id": "32",
          "value": "67"
        },
        {
          "stat_id": "42",
          "value": "1264"
        },
        {
          "stat_id": "26",
          "value": "3.56"
        },
        {
          "stat_id": "27",
          "value": "1.20"
        }
      ]
    },
    "draftresults": [
      {
        "pick": 11,
        "round": 1,
        "cost": "34",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.7254"
      },
      {
        "pick": 37,
        "round": 4,
        "cost": "26",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.8857"
      },
      {
        "pick": 67,
        "round": 6,
        "cost": "10",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.8412"
      },
      {
        "pick": 70,
        "round": 6,
        "cost": "29",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.7779"
      },
      {
        "pick": 83,
        "round": 7,
        "cost": "6",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.8167"
      },
      {
        "pick": 84,
        "round": 7,
        "cost": "3",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.9126"
      },
      {
        "pick": 91,
        "round": 8,
        "cost": "16",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.7483"
      },
      {
        "pick": 99,
        "round": 9,
        "cost": "3",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.6014"
      },
      {
        "pick": 100,
        "round": 9,
        "cost": "13",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.6637"
      },
      {
        "pick": 120,
        "round": 10,
        "cost": "1",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.6765"
      },
      {
        "pick": 137,
        "round": 12,
        "cost": "2",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.5763"
      },
      {
        "pick": 153,
        "round": 13,
        "cost": "5",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.9302"
      },
      {
        "pick": 162,
        "round": 14,
        "cost": "11",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.7865"
      },
      {
        "pick": 170,
        "round": 15,
        "cost": "2",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.9140"
      },
      {
        "pick": 177,
        "round": 15,
        "cost": "2",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.9327"
      },
      {
        "pick": 191,
        "round": 16,
        "cost": "7",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.8554"
      },
      {
        "pick": 192,
        "round": 16,
        "cost": "1",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.8773"
      },
      {
        "pick": 193,
        "round": 17,
        "cost": "3",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.6983"
      },
      {
        "pick": 194,
        "round": 17,
        "cost": "36",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.7066"
      },
      {
        "pick": 195,
        "round": 17,
        "cost": "50",
        "team_key": "328.l.34014.t.1",
        "player_key": "328.p.7163"
      }
    ]
  }
]