从客户端调用猫鼬 [英] Calling mongoose from react client side

问题描述

是的，我知道我应该从服务器端调用它.但是目的是从react-redux应用程序调用MongoDB strait.就像Firebase无服务器应用程序一样. 我写

Yes, I know I should call it from server side. But the purpose is to invoke MongoDB strait from the react-redux app. It's like firebase serverless apps do. I write

    import mongoose from 'mongoose';

    let mongoDB = 'mongodb://127.0.0.1/my_database';
    mongoose.connect(mongoDB);

    mongoose.Promise = global.Promise;

    let db = mongoose.connection;
    db.on('error', console.error.bind(console, 'MongoDB connection error:'));

然后我得到:

TypeError: __ 
WEBPACK_IMPORTED_MODULE_6_mongoose___default.a.connect is not a function

如何解决这个问题?

推荐答案

来自注释

猫鼬不能在前端工作，因为它依赖于Node的功能，而浏览器JS实现中没有这些功能.您不能将Mongoose导入前端代码.

Mongoose won't work in the frontend because it relies on functionality from Node which isn't present in browser JS implementations. You can't import Mongoose into frontend code.

---

尝试在您的React应用程序中导入猫鼬

---

Try importing mongoose in your react app

import mongoose from "mongoose";

并遍历其属性:

Object.getOwnPropertyNames(mongoose).forEach(prop => {
  console.log(prop);
});

你会得到

Promise
PromiseProvider
Error
Schema
Types
VirtualType
SchemaType
utils
Document

未导入需要与MongoDB配合使用的方法，例如connect.

The methods that you need to work with MongoDB, such as connect, are not being imported.

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