This project demonstrates how we can use the mongoose npm package to interact with a MongoDB database.
NOTE: BEFORE running the example, you'll need the free MongoDB community server installed and running on your machine. Alternatively you could use a MongoDB cloud service such as Atlas, and change the database URL in the .env file.
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We define a schema in schema.js. The defined schema is for a pet registration app. There are users with several fields such as
username,firstName,dateOfBirth, etc. Each user can have any number of registered pets. The schema JS file is extensively commented, for your reference. -
The main program is app.js. The program demonstrates how we can add, clear, and query information in the database.
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On
app.jsline 18, we connect to the database. The connection string in the.envfile is set for a database running on the same machine as this app. If you'd like to change it to, for example, a cloud-based database, you're welcome to do so by changing this connection string. -
After running the app, you can open the created database in a tool such as MongoDB Compass to see the all of the data that's been added.