Node Js Promise Inside For Loop Always Prints Promise { }

I'm trying to resolve a promise inside a for-loop in node js. In my code, I have a for loop in which I call a function findincollection that returns a promise. Then I push the data

Solution 1:

What you need here is Promise.all(). It returns a new promise, which gets resolved once all passed promises get resolved.

You can try something similar to:

var promises = [];

for (y = 0; y < list.length; y++) {
    promises.push(findincollection(list[y], mob, savetofile));
}

Promise.all(promises)
   .then(dt => {
       finalresult.push(dt); //pushes all 3 objects one by oneconsole.log(dt); //prints 3 objects one by one
       client.close();
       if (y == (collist.length)) { 
           resolve(finalresult);
       }
   }); // <-- this will be raised once all your promises are resolved

I see you're closing client inside each promise and this client is not a local variable. So I think you should be closing it after all your promises are completed.