Asynchronous Calls and Recursion with Node.js

Question

I\'m looking to execute a callback upon the full completion of a recursive function that can go on for an undetermined amount of time. I\'m struggling with async issues and was

Answer 1

With ES6, 'es6-deferred' & 'q'. You could try as following,

var Q = require('q');
var Deferred = require('es6-deferred');

const process = (id) => {
    var request = new Deferred();

    const ids =//do something and get the data;
    const subPromises = ids.map(id => process(id));

    Q.all(subPromises).then(function () {
        request.resolve();
    })
    .catch(error => {
        console.log(error);
    });

    return request.promise
}

process("testId").then(() => {
    console.log("done");
});