Array of mongoose objects

Question

Array of mongoose objects

Struggling to store an array of objects in mongodb using mongoose and node, I am facing challenges with simple validation.

I have defined a Schema and a custom validation function as follows:

const mongoose = require("mongoose");
const fieldsSchema = mongoose.Schema({
  title: {
    type: String,
    minlength: 2,
    maxlength: 250,
  },
  list: {
    type: Array,
    primaryText: {
      type: String,
      minlength: 1,
      maxlength: 250,
    },
    secondaryText: {
      type: String,
      minlength: 2,
      maxlength: 250,
    },
    listType: {
      type: String,
      enum: ["listOne", "listTwo"],
      minlength: 2,
      maxlength: 250,
    },
    items: {
      required: isListTypeTwo,
      type: Array,
      itemTitle: {
        type: String,
        minlength: 2,
        maxlength: 250,
      },
      itemContent: {
        type: String,
        minlength: 2,
        maxlength: 250,
      },
    },
...

...

How can I pass a properly defined structure of an array to my route?
Why is my validation not working?
Should I pass the JSON data in a different manner or structure?

node.js mongodb mongoose mongoose-schema

Answer 1

Answer №1

Before you do anything else, make sure to include the body-parser middleware for proper JSON parsing.

const express = require("express");
const bodyParser = require("body-parser");
const app = express(); // no need to call Router()

// parse application/json
app.use(bodyParser.json())

app.post("/", async (req, res) => {
  // your logic here...
});

Is there a way to pass a well-defined array structure to my route without manually accessing each object? For example, instead of: list: req.body.list, something more detailed?

If I understand correctly, using a loop might be the solution to save your fields efficiently.

  const promises = req.body.list.map(async (item) => { // map loop creating an array of promises
    const field = new Field({
      title: req.body.title,
      item,
    });
    return field.save(); // returning the promise
  });

  res.send(Promise.all(promises));

Don't forget to implement a try/catch block to handle and log any potential errors with your mongoose schema:

try {
  const field = new Field({
    title: req.body.title,
    item,
  });
  field.save();
  // success
} catch (error) {
  console.error(error);
}

Answer 2

Before you do anything else, make sure to include the body-parser middleware for proper JSON parsing.

const express = require("express");
const bodyParser = require("body-parser");
const app = express(); // no need to call Router()

// parse application/json
app.use(bodyParser.json())

app.post("/", async (req, res) => {
  // your logic here...
});

Is there a way to pass a well-defined array structure to my route without manually accessing each object? For example, instead of: list: req.body.list, something more detailed?

If I understand correctly, using a loop might be the solution to save your fields efficiently.

  const promises = req.body.list.map(async (item) => { // map loop creating an array of promises
    const field = new Field({
      title: req.body.title,
      item,
    });
    return field.save(); // returning the promise
  });

  res.send(Promise.all(promises));

Don't forget to implement a try/catch block to handle and log any potential errors with your mongoose schema:

try {
  const field = new Field({
    title: req.body.title,
    item,
  });
  field.save();
  // success
} catch (error) {
  console.error(error);
}

Array of mongoose objects

Answer №1

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