PUT method in Node.js/MongoDB - node.js

Question

I'm having issues with a simple PUT method in Node.js (MongoDB collection.update). Any help would be appreciated. At this point, I'm not getting an error, just an empty response.
index.js:
app.put('/UpdateValues/:collection/:entity', function(req, res) {
var params = req.params;
var entity = params.entity;
var collection = params.collection;
var value1 = req.body.value1;
var value2 = req.body.value2;
if (entity) {
collectionDriver.updateValues(collection, entity, value1, value2, function(error, objs) {
if (error) { res.status(400).send(error); }
else { res.status(200).send(objs); }
});
} else {
res.send(400, {error: 'bad url', url: req.url});
}
});
collectionDriver.js:
CollectionDriver.prototype.updateValues = function(collectionName, nameDoc, value1new, value2new, callback) {
this.getCollection(collectionName, function(error, the_collection) {
if (error) callback(error);
else {
the_collection.update(
{ name: nameDoc },
{ $set: {
value1: value1new,
value2: value2new
}},
function( err, result ) {
if ( err ) throw err;
}
);
}
});
};
Testing with:
$ curl -i -X PUT -H 'Content-Type: application/json' -d '{"value1":"1","value2":"1"}' http://localhost/UpdateValues/collection/test

Answer 1

Reference the callback you are passing in within your function. Presently you do not. You also seem like you are expeting the modified document in response, so you need .findOneAndUpdate() instead:
CollectionDriver.prototype.updateValues = function(collectionName, nameDoc, value1new, value2new, callback) {
this.getCollection(collectionName, function(error, the_collection) {
if (error) callback(error);
the_collection.findOneAndUpdate( // <-- new method
{ name: nameDoc },
{ $set: {
value1: value1new,
value2: value2new
}},
{ returnOriginal: false }, // <-- tells to return modified document
callback // <--- passes to callback you passed in
);
});
});