How to save array of objects in mongodb with mongoose?

Question

I want to save complex data, ie array of objects to mongoose. I have tried few things but i couldn't save the data.

I defined my schema as above and i want to save array of objects that could have any level of nesting. Schema

const mongoose = require('mongoose);
const PostSchema = new mongoose.Schema({
    post: [{}]
});

let PostModel = mongoose.Model('Post', PostSchema)

The Data:

Here is the code I used to save the data

app.post('/saveData, async (req, res) => {
    const response = await Post.create(req.body);
    res.json({
        data: response
    });
});

app.listen(8008, () => {
    console.log('server running);
});

The problem is that i cant retrieve the data. it returns array of objects equal to the number of saved array but with no data in it.

How can it be done?

please add code instead of screen

Wang Liang
– Wang Liang

2020-02-06 18:19:47 +00:00
Commented Feb 6, 2020 at 18:19 — Wang Liang
– Wang Liang, Commented Feb 6, 2020 at 18:19

Mayur Vaghasiya · Accepted Answer · 2020-02-07 07:48:51Z

1

This code works for me.

  const PostModel =  require('./Post');    //declare your model
  app.post('/saveData', async (req, res) => {
    const objModel = new PostModel();
    objModel.post = req.body;   //assign the data post array.
    const response = await objModel.save();
    res.json({
      data: response
    });
  });

answered Feb 7, 2020 at 7:48

Mayur Vaghasiya

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Comments

Rainer Plumer · Accepted Answer · 2020-02-06 19:21:32Z

0

Your post schema looks weird. You have a collection for Posts and then within a posts schema, you have a posts array. What is the point of that? The post collection already is an "array" for posts.

// Perhaps you are looking for something like this.
const PostSchema = new mongoose.Schema({
    title: String,
    content: String,
    level: Number,
    footer: String,
    author: ObjectId,// who wrote the post
    comments: [{
       user: ObjectId,
       comment: String
    }],
    ... createdAt, updatedAt etc
});

Your data structure doesnt seem to match your schema either. e.g await Post.create({posts: req.body});

answered Feb 6, 2020 at 19:21

Rainer Plumer

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1 Comment

Dipesh Chaulagain Over a year ago

The only control i have over the data to be saved is that it is the array of object. I am using WYSIWYG editor(editorjs) to write a post. So having schema defined like that wouldnt work for me. Solution answered worked as intended for me!!

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