Using findOne in a loop takes too long in Node.js

Question

I\'m using Node.js with MongoDB, I\'m also using Monk for db access. I have the below code :

console.time(\"start\");

collection.findOne({name: \"jason\"},         


        

Answer 1

collection.aggregate([
                                {
                                    $match:{
                                        id :{ "$in" : document.friends},
                                    }
                                }
                                ]).exec(function ( e, d ) {
                                    console.log( d )            

                                    if(!e){
                                        // your code when got data successfully
                                    }else{
                                        // your code when you got the error
                                    }    
                                });