The error give by my terminal is I dont know why this give the error beacause I created the another file in which only image post in the databse of mongodb and its work but here its throw this kind of type error.
TypeError: Cannot read properties of undefined (reading 'filename')
at C:\Users\Dell\Desktop\cinemaapp\backend\routes\category.js:31:27
at Layer.handle [as handle_request] (C:\Users\Dell\Desktop\cinemaapp\backend\node_modules\express\lib\router\layer.js:95:5)
at next (C:\Users\Dell\Desktop\cinemaapp\backend\node_modules\express\lib\router\route.js:144:13)
at Route.dispatch (C:\Users\Dell\Desktop\cinemaapp\backend\node_modules\express\lib\router\route.js:114:3)
at Layer.handle [as handle_request] (C:\Users\Dell\Desktop\cinemaapp\backend\node_modules\express\lib\router\layer.js:95:5)
at C:\Users\Dell\Desktop\cinemaapp\backend\node_modules\express\lib\router\index.js:284:15
at Function.process_params (C:\Users\Dell\Desktop\cinemaapp\backend\node_modules\express\lib\router\index.js:346:12)
at next (C:\Users\Dell\Desktop\cinemaapp\backend\node_modules\express\lib\router\index.js:280:10)
at Function.handle (C:\Users\Dell\Desktop\cinemaapp\backend\node_modules\express\lib\router\index.js:175:3)
at router (C:\Users\Dell\Desktop\cinemaapp\backend\node_modules\express\lib\router\index.js:47:12)
The category.js code is
const express = require('express');
const { body, validationResult } = require('express-validator');
const router = express.Router();
const Product=require('../models/Product');
const multer=require('multer');
//storage
const storage = multer.diskStorage({
destination: 'uploads',
filename: function (req, file, cb) {
cb(null,file.originalname)
}
})
const upload = multer({ storage: storage }).single('testImage');
router.post('/addproduct',[], async (req, res) => {
try {
const { name, description, price,category } = req.body;
//if there are errors ,return bad request and the error
const errors = validationResult(req);
if (!errors.isEmpty()) {
return res.status(400).json({ errors: errors.array() });
}
const note = new Product({
name, description,price,category,
image:{
data:req.file.filename,
contentType:'image/png '
}
})
const savenote=await note.save();
res.json(savenote);
} catch (error) {
console.log(error);
}
});
module.exports=router;
The model schemaa for this is
const mongoose = require('mongoose');
const { Schema } = mongoose;
const ProductSchema = new Schema({
name: {
type: String,
required: [true, "Please Enter product Name"],
trim: true
},
description: {
type: String,
required: [true, "Please write description of product"]
},
price: {
type: Number,
required: [true, "Please Enter the Price"],
maxLength: [15, "Price cannot exceed 8 figure amount"]
},
category: {
type: String,
required: [true, "Category is must"]
},
image:{
data:Buffer,
contentType:String
}
});
const Product=mongoose.model('product',ProductSchema);
module.exports=Product;
index.js code is
const connectToMongo=require('./db');
var cors = require('cors');
const express = require('express')
connectToMongo();
const app = express()
app.use(cors())
const port = 5000
app.use(express.json());
app.use('/api/authent',require('./routes/authent'));
app.use('/api/Categories',require('./routes/Categories'));
app.use('/api/category',require('./routes/category'));
app.use('/api/Imageprac',require('./routes/Imageprac'));
app.listen(port, () => {
console.log(`iNoteBook Backend listening on port ${port}`)
})
