Connect to MongoDB

Using the Deno MongoDB client, you can connect to a Mongo database running anywhere.

import { MongoClient } from "npm:mongodb@6.1.0";

Create a new instance of the MongoDB client running locally on port 27017

const client = new MongoClient("mongodb://127.0.0.1:27017");

Connect to the MongoDB server

await client.connect();

Define the schema for the collection

interface DinosaurSchema {
  name: string;
  skills: string[];
}

Access the database

const db = client.db("animals");

Access the collection within the database

const dinosaurs = db.collection<DinosaurSchema>("dinosaurs");

Insert a new document into the collection

await dinosaurs.insertOne({
  name: "deno",
  skills: ["dancing", "hiding"],
});

Find all documents in the collection with the filter

const allDinosaurs = await dinosaurs.find({ name: "deno" }).toArray();

console.log(allDinosaurs);

Close the MongoDB client connection

client.close();

Run this example locally using the Deno CLI:

deno run --allow-net --allow-sys --allow-read https://docs.deno.com/examples/scripts/mongo.ts

Additional resources