Can anyone can help me to display the data in my backend server
It shows only {“data”:}, But my collection having some data int it
It shows only {“data”:}, But my collection having some data int it
Please do not post your code as an image. We cannot cut-n-paste it.
Are you using mongoose? If not, then find() returns a cursor. You have to consume the cursor. Calling toArray() is one way to do it.
Server.js
const express = require(“express”);
const bodyParser = require(“body-parser”);
const cors = require(“cors”);
const db = require(’./db’);
const app = express();
const productRouter = require(’./routes/productRouter.js’)
var corsOptions = {
origin:"http://localhost:3000"
}
app.use(cors(corsOptions));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: true}));
db.on(‘error’, console.error.bind(console, ‘MongoDB Connection Failed:’))
app.get("/",(req,res)=>{
res.json({message: "Welcome to E-canteen"});
});
const PORT = process.env.PORT || 6505;
app.listen(PORT, () => {
console.log(`Server is running on port ${PORT}`);
});
app.use(’/api/’,productRouter)
productRouter.js
const express = require(‘express’)
const router = express.Router()
const Product = require(’…/models/productModel’)
router.get(’/’, async (req, res) => {
try {
const products = await Product.find([])
res.status(200).send({data:products})
} catch (err) {
res.status(400).send({ error: err})
}
})
router.get(’/products-by-categories’, async (req,res) =>{
try {
const products = await Product.aggregate([
{ $match: {}},
{ $group: {
_id: '$category',
products: {$push: '$$ROOT'}
}},
{$project: { name: '$_id',products: 1, _id: 0}}
])
res.status(200).send({data: products})
} catch (err) {
res.status(400).send({error: err})
}
})
module.exports = router;
Why did you added the empty array parameter to find()
where you simply had
const products = await Product.find()
Your code does not show how you connect to your database server. It is probably done in
So
Have you tried
Share a screenshot that shows the data you have in your database. The ideal is a screenshot using mongosh so we can see the database and the collection use.