---
id: 587d7fb6367417b2b2512c06
title: 安装和设置 Mongoose
challengeType: 2
forumTopicId: 301540
dashedName: install-and-set-up-mongoose
---

# --description--

在 package.json 文件中添加 mongodb 和 mongoose 作为项目依赖，然后引入 Mongoose。之后，将 MongoDB Atlas 的 URI 作为 MONGO_URI 字段存储在私有的 `.env` 文件中。然后使用单引号或双引号包裹 URI，最后通过以下的代码片段来连接数据库：

```js
mongoose.connect(<Your URI>, { useNewUrlParser: true, useUnifiedTopology: true }); 
```

# --hints--

"mongodb" 应在 package.json 中作为依赖项定义

```js
(getUserInput) =>
  $.get(getUserInput('url') + '/_api/file/package.json').then(
    (data) => {
      var packJson = JSON.parse(data);
      assert.property(packJson.dependencies, 'mongodb');
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );
```

"mongoose" 应在 package.json 中作为依赖项定义

```js
(getUserInput) =>
  $.get(getUserInput('url') + '/_api/file/package.json').then(
    (data) => {
      var packJson = JSON.parse(data);
      assert.property(packJson.dependencies, 'mongoose');
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );
```

应使用 "mongoose" 连接数据库

```js
(getUserInput) =>
  $.get(getUserInput('url') + '/_api/is-mongoose-ok').then(
    (data) => {
      assert.isTrue(data.isMongooseOk, 'mongoose is not connected');
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );
```

# --solutions--

```js
/**
  Backend challenges don't need solutions, 
  because they would need to be tested against a full working project. 
  Please check our contributing guidelines to learn more.
*/
```