我在MongoDB中建立了一个名为entertainment的数据库，其中包含一个名为medias的集合，该集合中包含JSON数据。
当我使用Postman呼叫数据库时：http://localhost:8000/data返回了一个空数组。
下面是我的全部代码：

const express = require("express");
const mongoose = require("mongoose");
const app = express();
require("dotenv").config();

const uri = `mongodb+srv://tyrellc:${process.env.MONGO_PASSWORD}@entertainmentapp.jtcf92n.mongodb.net/?retryWrites=true&w=majority`;

async function connect() {
  try {
    await mongoose.connect(uri);
    console.log("Connected to MongoDB");
  } catch (error) {
    console.log(error);
  }
}

mongoose.set("strictQuery", false);

connect();

app.listen(8000, () => {
  console.log("Express Server Started port:8000");
});

const collectionSchema = new mongoose.Schema({
  _id: { type: mongoose.Schema.Types.ObjectId, required: true },
  title: { type: String, required: true },
  thumbnail: {
    trending: {
      small: { type: String, required: true },
      large: { type: String, required: true },
    },
    regular: {
      small: { type: String, required: true },
      medium: { type: String, required: true },
      large: { type: String, required: true },
    },
  },
  year: { type: Number, required: true },
  category: { type: String, required: true },
  rating: { type: String, required: true },
  isBookmarked: { type: Boolean, default: false },
  isTrending: { type: Boolean, default: true },
});

const Collection = mongoose.model("Collection", collectionSchema, "medias");

app.get("/data", async (req, res) => {
  const data = await Collection.find();
  res.json(data);
});

运行应用程序时，我会获得两个控制台日志：Express Server Started port:8000和Connected to MongoDB。
这是我的JSON数据在MongoDB中的样子：

{"_id":{"$oid":"63c733940231fb2f67b5344e"},"title":"Beyond Earth","thumbnail":{"trending":{"small":"./assets/thumbnails/beyond-earth/trending/small.jpg","large":"./assets/thumbnails/beyond-earth/trending/large.jpg"},"regular":{"small":"./assets/thumbnails/beyond-earth/regular/small.jpg","medium":"./assets/thumbnails/beyond-earth/regular/medium.jpg","large":"./assets/thumbnails/beyond-earth/regular/large.jpg"}},"year":{"$numberInt":"2019"},"category":"Movie","rating":"PG","isBookmarked":false,"isTrending":true}

我研究过多元化，并尝试过：
const Collection = mongoose.model("Collection", collectionSchema, "medias");
const Collection = mongoose.model("Collection", collectionSchema, "media");
const Collection = mongoose.model("media", collectionSchema);
const Collection = mongoose.model("medias", collectionSchema);
似乎什么都做不到。有人知道我做错了什么吗？
MongoDB图谱数据库：