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Я пытаюсь воспроизвести этот проект push-уведомлений, написанный на TS, но с использованием javascript.

Это следующая функция:

 Subscription Model:

const mongoose = require('mongoose');
const Schema = mongoose.Schema

const SubscriptionModel = new Schema({
    endpoint: { type: String, unique: true, required: true },
    expirationTime: { type: Number, required: false },
    keys: {
        auth: String,
        p256dh: String,
    },
});
        
const model = mongoose.model('Subscription', SubscriptionModel);

module.export = model
 

SubscriptionRepository

 const Subscription =  require('../model/SubscriptionModel')

const create = async (subscription) => {
    try{
        const newSubscription = new Subscription.model(subscription);        
        const savedSubscription = await newSubscription.save();
        return savedSubscription.toObject();
    }catch(err){
        return err
    }
};

module.exports = {create:create}
 

Подписка на маршрут

 app.post("/subscription", async (req, res) => {
  try{
    (async() => {
      const subscription = req.body;
      const newSubscription = subscriptionRepository.create(subscription);
      console.log(newSubscription);
      res.status(201).json(newSubscription)
    })();        
  }catch(err){
    console.log(err);
  }

});
 

Ошибка:

Обещание { TypeError: Subscription.model не является конструктором }

Это мой первый раз, когда я использую Moongose, я понятия не имею, даже ищу, как исправить! Любое предложение, чтобы помочь мне?

Вложенный объект:

 { endpoint:
   'https://fcm.googleapis.com/fcm/send/dYGGHvDYLtk:APA91bHIkbLj-Fi0VKrhRuemQZiwc1G49bls0obRGlyPJ6MLisgm3s_lGLvts9jKUaAHKWxxMFlw7imLY8YqEU1C83YNRREdZ70nnVamFFLSANWpZ922z-tysSQhEjBquhISE9rv2RtK',
  expirationTime: null,
  keys:
   { p256dh:
      'BOVN3GYiheBK77iPxZecbagZCMXLi06YE8pe-O-dKSmd8r_ccObMYyJ8oYbIQw7htNSxIv4mP5awABRq0LskE6I',
     auth: '8x9bTem324oY4-P9jKcuSQ' } }
 

Вывод ошибки:

 Promise {
  TypeError: Subscription.model is not a constructor
      at Object.create (/home/thiago/Documentos/Coding/push_notification/controller/subscriptionRepository.js:5:33)
      at /home/thiago/Documentos/Coding/push_notification/server.js:31:54
      at app.post (/home/thiago/Documentos/Coding/push_notification/server.js:34:7)
      at Layer.handle [as handle_request] (/home/thiago/Documentos/Coding/push_notification/node_modules/express/lib/router/layer.js:95:5)
      at next (/home/thiago/Documentos/Coding/push_notification/node_modules/express/lib/router/route.js:137:13)
      at Route.dispatch (/home/thiago/Documentos/Coding/push_notification/node_modules/express/lib/router/route.js:112:3)
      at Layer.handle [as handle_request] (/home/thiago/Documentos/Coding/push_notification/node_modules/express/lib/router/layer.js:95:5)
      at /home/thiago/Documentos/Coding/push_notification/node_modules/express/lib/router/index.js:281:22
      at Function.process_params (/home/thiago/Documentos/Coding/push_notification/node_modules/express/lib/router/index.js:335:12)
      at next (/home/thiago/Documentos/Coding/push_notification/node_modules/express/lib/router/index.js:275:10)
      at serveStatic (/home/thiago/Documentos/Coding/push_notification/node_modules/serve-static/index.js:75:16)
      at Layer.handle [as handle_request] (/home/thiago/Documentos/Coding/push_notification/node_modules/express/lib/router/layer.js:95:5)
      at trim_prefix (/home/thiago/Documentos/Coding/push_notification/node_modules/express/lib/router/index.js:317:13)
      at /home/thiago/Documentos/Coding/push_notification/node_modules/express/lib/router/index.js:284:7
      at Function.process_params (/home/thiago/Documentos/Coding/push_notification/node_modules/express/lib/router/index.js:335:12)
      at next (/home/thiago/Documentos/Coding/push_notification/node_modules/express/lib/router/index.js:275:10) }