freeCodeCamp/curriculum/challenges/english/05-apis-and-microservices/mongodb-and-mongoose/install-and-set-up-mongoose.md

---
id: 587d7fb6367417b2b2512c06
title: Install and Set Up Mongoose
challengeType: 2
forumTopicId: 301540
dashedName: install-and-set-up-mongoose
---

# --description--

In this challenge, you will import the required projects, and connect to your Atlas database.

# --instructions--

Add `mongodb` and `mongoose` to the project’s `package.json`. Then, require mongoose as `mongoose` in `myApp.js`. Create a `.env` file and add a `MONGO_URI` variable to it. Its value should be your MongoDB Atlas database URI. Be sure to surround the URI with single or double quotes, and remember that you can't use spaces around the `=` in environment variables. For example, `MONGO_URI='VALUE'`. When you are done, connect to the database using the following syntax:

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

# --hints--

"mongodb" dependency should be in package.json

```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" dependency should be in package.json

```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);
    }
  );
```

"mongoose" should be connected to a database

```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.
*/
```