Question

At the moment I use save to add a single document. Suppose I have an array of documents that I wish to store as single objects. Is there a way of adding them all with a single function call and then getting a single callback when it is done? I could add all the documents individually but managing the callbacks to work out when everything is done would be problematic.

Answer 1

Mongoose doesn’t have bulk inserts implemented yet (see issue #723).

Since you know the number of documents you’re saving, you could write something like this:

var total = docArray.length
  , result = []
;

function saveAll(){
  var doc = docArray.pop();

  doc.save(function(err, saved){
    if (err) throw err;//handle error

    result.push(saved[0]);

    if (--total) saveAll();
    else // all saved here
  })
}

saveAll();

This, of course, is a stop-gap solution and I would recommend using some kind of flow-control library (I use q and it’s awesome).