Summary  
Demonstrates how to implement HTTP GET endpoints that use model methods like find() and findById() to fetch all or individual records from a database and return them as JSON.

General domain of usage  
RESTful API development


To retrieve data from MongoDB, you use methods provided by the model.

To get all documents:

```javascript
app.get('/users', async (req, res) => {
  const users = await User.find();

  res.json(users);
});
```

To get a single document by id:

```javascript
app.get('/users/:id', async (req, res) => {
  const user = await User.findById(req.params.id);

  res.json(user);
});
```

Examples:

* `'/users'`: returns all users;
* `'/users/123'`: returns user with id 123.

These methods allow your API to read data from the database and return it to the client.


Learn how to store and manage data in backend applications using MongoDB and Mongoose. Connect your Express API to a database and perform create, read, update, and delete operations. Build real data-driven backend functionality and move beyond in-memory storage.

Reading Data with GET