I want to Join a collection then find in mongodb.

Here is my collection:

COLORS:

```
{id: 1, color: 'red'}
{id: 2, color: 'blue'}

```

PRICES:

```
{price_id: 1, price: 4}
{price_id: 2, price: 5}

```

How do I find the color who has the price of 5 dollars?

Here is my solution (which didn't work):

```
db.collection('colors').aggregate([
    {
        $lookup:
            {
                from: 'prices',
                localField: 'id',
                foreignField: 'price_id',
                as: 'info'
            },
        $match:
            {
                price: 5
            }
    }
]).toArray((res, err) => {
    if (res) {
        console.log(res);
    } else {
        console.log(err);
    }
})

```