eolas/Databases/MongoDB/Connect_to_database.md

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2022-08-11 12:30:04 +01:00
---
tags:
- Databases
- mongo_db
- node-js
- mongoose
---
# Connect to a database with Mongoose
Now that we have installed and configured MongoDB, we need to connect to it via Node.js. Mongoose is a simple API for interacting with a Mongo database via Node.
With Mongoose installed we can connect to a database. We don't have any Mongo databases yet beyond the defaults but the following Mongoose connection logic will create and connect to a new database called `playground`:
Providing the Mongo server is running (execture `mongod`), we will see the confirmation message in the console.
```js
mongoose
.connect("mongodb://127.0.0.1/playground")
.then(() => console.log("Connected to MongoDB"))
.catch((err) => console.error(err));
```