Reuse Mongodb problem

[IRediTOTO]

I am trying to reuse Mongodb, I tried:

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

        const mongoClient = new MongoClient(process.env.MONG_DB_URL, {
           useNewUrlParser: true,
           useUnifiedTopology: true,
        });
        export const productsCollection = async () => {
           if (!mongoClient.isConnected()) await mongoClient.connect().then(res=>{
            return  res.db("shop").collection("products");
           });
        };

    productsCollection().then(res=>{    // How to make this shorter to Reuse?
      res.find({}).toArray((err,res)=>{
        console.log(res)
      })
    })

There codes will work ok. But How to make it more easier to reuse?

I expect it can reuse like this

productsCollection.find({}).toArray()

[jensmeindertsma]

Hello @warcraft14115 ! I extracted your product-fetching logic into a separate function getProducts that you can call to get the products. I left the rest of your code the same. I hope this helps you!

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

const mongoClient = new MongoClient(process.env.MONG_DB_URL, {
  useNewUrlParser: true,
  useUnifiedTopology: true,
});

export const productsCollection = async () => {
  if (!mongoClient.isConnected()) await mongoClient.connect().then(res => {
    return res.db("shop").collection("products");
  });
};

const getProducts = async () => {
  const result = await productsCollection();

  result.find({}).toArray((error, result) => {
    return result
  })
}

getProducts().then(result => {
  // Do something with result here
})

This means you can call the getProducts function anywhere to get your data. This abstracts away the productsCollection.find({}).toArray() like you requested.

[IRediTOTO]

Thank you. It not shorter. I will use old way :|

[jensmeindertsma]

It's not shorter, but if you would use the getProducts function multiple times throughout your application it is shorter.