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My collection of JS/TS snippets

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Posted on 10.06.2020
Last updated on 03.02.2025
Image by Marcin Wichary on Flickr
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Mongo
Connect to a database and retrieve data from a collection

Here I have a collection of useful JS/TS snippets used in profession day to day work routine.

# Mongo

# Connect to a database and retrieve data from a collection

While crawling the official docs, could not find a working example of how to extract data from a database. The snippet below is basically a compilation of some posts from Stackoverflow: 

#!/usr/bin/env node


const MongoClient = require('mongodb').MongoClient;


const MONGO_URI = 'mongodb://localhost:27017/?maxPoolSize=20&w=majority';
const client = new MongoClient(MONGO_URI);


async function run() {
    try {
        const connection = await client.connect();
        const database = connection.db('db_name');
        const registry = database.collection('collection_name');


        const result = await registry.find({}).toArray();


        console.log(result);
    } finally {
        await client.close();
    }
}
run().catch(console.dir);
The code is licensed under the MIT license

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Sergei Gannochenko

Business-focused product engineer, in ❤️ with amazing products.
Golang/Node, React, TypeScript, Docker/K8s, AWS/GCP, NextJS.
20+ years in dev.