uploading files from react to node js with multer - node.js

Question

I want to upload files from the form data in react which is being posted by axios like this.
const addNewProduct = () => {
const newProduct = {
name: name,
cost: cost,
size: size,
color: color,
material: material,
discount: discount,
description: description,
category: category
};
const nulls = Object.values(newProduct).filter(p => p === null);
if(nulls.length === 0 && images.imageFiles) {
let productFormData = new FormData();
productFormData.append('productInfo', JSON.stringify(newProduct));
productFormData.append('productImages', images.imageFiles);
const addUrl = "http://localhost:8080/cpnl/addproduct";
axios({
method: "POST",
url: addUrl,
data: productFormData,
headers: { "Content-Type": "multipart/form-data" }
})
.then((response) => {
console.log(response.data.msg);
})
.catch((response) => {
console.error(response);
});
}else {
Notiflix.Notify.Warning("Check your inputs!");
console.log(nulls);
console.log("product: \n" + JSON.stringify(newProduct));
}
};
then I want to upload images with multer to images folder. this is my code:
const storage = multer.diskStorage({
destination: "./public/images",
filename: (req, file, cb) => {
cb(null, file.fieldname + '-' + Date.now() + path.extname(file.originalname));
}
});
const upload = multer({
storage: storage,
limits:{fileSize: 1000000},
fileFilter: function(req, file, cb){
checkFileType(file, cb);
}
}).array("productImages", 5);
function checkFileType(file, cb) {
// Allowed ext
const filetypes = /jpeg|jpg|png/;
// Check ext
const extname = filetypes.test(path.extname(file.originalname).toLowerCase());
// Check mime
const mimetype = filetypes.test(file.mimetype);
if(mimetype && extname){
return cb(null,true);
} else {
cb('Error: Images Only!');
}
}
//receive form data from front-end and add new product to database
router.post('/addproduct', async (req, res) => {
upload(req, res, (err) => {
if(err) {
res.status(400).json({
msg: err
});
} else {
if(req.files == undefined) {
res.status(400).json({
msg: "Error: No file selected! please contact the developer."
});
} else {
data = req.body.productInfo;
res.status(200).json({
msg: "Files uploaded!"
});
console.log( "images: " + req.files);
console.log("data" + data);
}
}
});
});
first problem: I'm getting image files inside req.body.productImages and not inside req.files
second problem: when I send the request node js throws me this error:
TypeError: upload is not a function
why everything is messed up!?
Edit: I restarted the server and now I'm getting data but the files are not being uploaded. no error is shown.
UPDATE: second problem fixed

Answer 1

First Problem : You have used .array("productImages", 5); in your upload function. use .array("files", 5); to get the file in req.files.
Second Problem : I guess there is some typo error in your code upload(req, res, (err)... there is one extra bracket it should be only upload(req,res,err )...