Can i get back a formated json response when i do Model.find({}) to find all documents with mongoose?

JavaScript
1

Tell us what’s happening:
I want to get back a response like this , //JSON res format: [{"_id": data._id, “title”: data.title}] . But it returns the whole collection, I can’t get back a selective item like only the title from the collection.

My code snippet

Your code so far

const bookSchema = new mongoose.Schema({
  title: String,
  comments: []
})

const Books = mongoose.model("Books", bookSchema);
module.exports = function (app) {

  app.route('/api/books')
    .get(function (req, res){
      //response will be array of book objects
      //json res format: [{"_id": bookid, "title": book_title, "commentcount": num_of_comments },...]
    Books.find({}, (err, data) => {
      res.json(data.title)
    })
    })
  
    .post(function (req, res){
      var title = req.body.title;
      //response will contain new book object including atleast _id and title
    const newBookTitle = new Books({
      title
    })
    newBookTitle.save(function(err, booksData) {
      if(err) return res.json(err)
      res.json(booksData)
    })
    })

data.title returns null value?
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2

Hey there, You can get a single option and returning using

.findOne(query, function(err,obj) {
res.json(obj); });

where query is the key-value pair to be used to search and identify the single item

3

This will return just only a specific item, but i want to return all the title stored in my documents.

4

You want all the titles in your database?
If so you could iterate the json and push all the titles to a new array/object that you can then return.

1 Like
5

I tried this it returns an empty array. Can you show me a example how to do it ?

6

Ouky i got it man. Thanks for the help it worked.

1 Like
7

you are welcome @n3tspid3r. Happy coding

1 Like