获取用户访问小程序数据最近一周日趋势

{
    "list": [
        {
            "ref_date": "20170313",
            "session_cnt": 142549,
            "visit_pv": 472351,
            "visit_uv": 55500,
            "visit_uv_new": 5464,
            "stay_time_session": 0,
            "visit_depth": 1.9838
        }
    ]
}