使用Express查询MongoDB服务器（Node.js项目）

Question

I've created a route in a Node.js project to render all "logs" from a MongoDB database to a Web page:

   app.get('/api/logs', function (req, res) {
    Log.find( function (err, logs) {
     res.json(logs);
    });
   });

I want to modify this query to (1) limit the response to 10 logs and (2) display the logs in reverse chronological order (from most recent to least recent). If I try the below code, nothing will render to my page and my Node server gives the following error: Error: sort() only takes 1 Argument .

   app.get('/api/logs', function (req, res) {
    Log.find().limit(10).sort({$natural:-1}, function(err, logs){
     res.json(logs);
    });
   });

The above snippet DOES work if I type it directly into my Monog console as a single query: Log.find().limit(10).sort({$natural:-1}) Is there a different way to write this to grab the information I want? Thanks for your suggestions!

Answer 1

This works perfectly:

app.get('/api/logs', function (req, res) {
    Log.find().limit(10).sort(-fieldToSort).exec(function(err, logs){
        res.send(logs)
    })
   });

The -fieldToSort sorts the field in a descending order as you requested. fieldToSort is the field name you want to sort.

Hope it helps!