Javascript Mapbox地理编码器仅在获取/创建路径中部分工作。为什么我的代码不能正常工作？

我正在尝试将mapbox地理编码器添加到我的获取/创建路线。我有一个异步函数，用于地理编码器获取位置坐标。控制台日志将告诉我模型的坐标，但从mapbox geocode函数日志中提供日志中的正确坐标。从完整阵列的日志中。我的代码感觉不错，但我就是不明白为什么它不工作？这是我的密码：

async function geocoder() {
    try {
        let response = await geocodingClient
        .forwardGeocode({
            query: req.body.location,
            limit: 1
        })
        .send()
        var coordinates = response.body.features[0].geometry.coordinates;
        req.body.coordinates = response.body.features[0].geometry.coordinates;
        console.log(response.body.features[0].geometry.coordinates);
        return coordinates
    } catch(err){
        console.log(err.message);
    }
}




// get data from forum and add to post array
var home        = req.body.home;
var title       = req.body.title;
var location    = req.body.location;
var zipcode     = req.body.zipcode;
var coordinates = geocoder(req.body.location);
var dsc         = req.body.description;
var image       = req.body.image;
var endDate     = req.body.endDate
var author      = {
    id:           req.user._id,
    username:     req.user.username
};
var contactInfo = {
    phoneNumber:  formatPhoneNumber(req.body.phoneNumber),
    email:        req.body.email
}

var newHome = {
    data:           data, 
    title:          title,
    location:       location,
    zipcode:        zipcode,
    coordinates:    coordinates, 
    description:    dsc, 
    image:          image, 
    author:         author,
    contactInfo:    contactInfo,
    endDate:        endDate,
};

控制台输出为：

{ coordinates: [ Promise { <pending> } ],
  _id: id,
  service: '10001',
  title: 'Maimi',
  location: 'Miami, Fl',
  zipcode: '33101',
  description: 'Miami',
  image: 'https://i.ytimg.com/vi/9R1N_ww10wE/maxresdefault.jpg',
  author: { id: id, username: 'username' },
  contactInfo: { phoneNumber: ‘phone', email: 'email' },
  endDate: 2019-12-20T05:00:00.000Z,
  created: 2018-10-16T15:54:23.943Z,
  __v: 0 }
[ -80.1937, 25.7743 ]

{坐标：[承诺{}]，
_id:id，
服务：'10001'，
标题：“麦米”，
地点：佛罗里达州迈阿密，
zipcode:'33101'，
描述：'迈阿密'，
图像：'https://i.ytimg.com/vi/9R1N_ww10wE/maxresdefault.jpg',
作者：{id:id，用户名：'username'}，
联系人信息：{phoneNumber:'phone'，email:'email'}，
结束日期：2019-12-20T05:00:00.000Z，
创建时间：2018-10-16T15:54:23.943Z，
__v:0}
[ -80.1937, 25.7743 ]