make async call inside forEach

Question

I am trying to iterate thru array of objects and add some stuff inside these objects using async function in Node.js.

So far my code looks like:

var          


        

Answer 1

Since you are already using promises, better not to mix that metaphor with async. Instead, just wait for all the promises to finish:

Promise.all(channel.map(getData))
    .then(function() { console.log("Done"); });

where getData is:

function getData(entry) {
    return knex('albums')
        .select(knex.raw('count(id) as album_count'))
        .where('channel_id', entry.id)
        .then(function (terms) {
            var count = terms[0].album_count;
            entry.attributes["totalAlbums"] = count;
        })
    ;
}