Mongo DB Connection

app.js

// require('koa') or require('express') whatever fits your fancy
const { Connection } = require('./db');

Connection.connectToMongo().then(() => {
  // initialize your app and register routes
  
  router.get('whatever', async(ctx) => {
    const result = await Connection.db.collectionName.find({ id: ctx.params.id });
    ctx.res.body = result;
    
    // yay CRUD
  })
})
.catch((err) => {
  console.log('whoops database ain\'t working there bud')
});

db.js

const MongoClient = require('mongodb').MongoClient

class Connection {
  static db;
  static url = 'mongodb://127.0.0.1:27017'
  static options = {
    poolSize: 10,
  }

  // connect to the mongodb
  static async connectToMongo() {
      if (this.db) return this.db
      this.client = await MongoClient.connect(this.url);
      this.db = this.client.db('YOUR_DB');
      return this.db
  }
}



module.exports = { Connection }