10 replies

Should I start my database connection on server start?

Hello, quick question, I'm working on my back-end code for my product page website. My question is when connecting with my database (mongoDB in this case), I was wondering, as soon as the server starts, should we connect the database and then we just add functions to query it when needed Or we implement a connection string in each function.

That is for example, consider this code:

const { MongoClient } = require('mongodb');

async function runGetStarted() {
  // Replace the uri string with your connection string
  const uri = '<connection string URI>';
  const client = new MongoClient(uri);

  try {
    const database = client.db('sample_mflix');
    const movies = database.collection('movies');

    // Queries for a movie that has a title value of 'Back to the Future'
    const query = { title: 'Back to the Future' };
    const movie = await movies.findOne(query);

    console.log(movie);
  } finally {
    await client.close();
  }
}
runGetStarted().catch(console.dir);

const { MongoClient } = require('mongodb');

async function runGetStarted() {
  // Replace the uri string with your connection string
  const uri = '<connection string URI>';
  const client = new MongoClient(uri);

  try {
    const database = client.db('sample_mflix');
    const movies = database.collection('movies');

    // Queries for a movie that has a title value of 'Back to the Future'
    const query = { title: 'Back to the Future' };
    const movie = await movies.findOne(query);

    console.log(movie);
  } finally {
    await client.close();
  }
}
runGetStarted().catch(console.dir);

The connection happens in the function itself, my concern is should I write something like that or when server starts, run connectDB function then import it when needed to access my database settings?

KP-C

Kevin Powell - Community•4mo ago•

10 replies

Faker

Should I start my database connection on server start?

const { MongoClient } = require('mongodb');

async function runGetStarted() {
  // Replace the uri string with your connection string
  const uri = '<connection string URI>';
  const client = new MongoClient(uri);

  try {
    const database = client.db('sample_mflix');
    const movies = database.collection('movies');

    // Queries for a movie that has a title value of 'Back to the Future'
    const query = { title: 'Back to the Future' };
    const movie = await movies.findOne(query);

    console.log(movie);
  } finally {
    await client.close();
  }
}
runGetStarted().catch(console.dir);

const { MongoClient } = require('mongodb');

async function runGetStarted() {
  // Replace the uri string with your connection string
  const uri = '<connection string URI>';
  const client = new MongoClient(uri);

  try {
    const database = client.db('sample_mflix');
    const movies = database.collection('movies');

    // Queries for a movie that has a title value of 'Back to the Future'
    const query = { title: 'Back to the Future' };
    const movie = await movies.findOne(query);

    console.log(movie);
  } finally {
    await client.close();
  }
}
runGetStarted().catch(console.dir);

Should I start my database connection on server start?

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