How can I save multiple documents concurrently in Mongoose/Node.js?
mongodb, mongoose, node.js
Solution
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).
Problem
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.