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Viewsreq.file is undefined when uploading image from front end
I have checked other similar post but its still not working: Its giving me undefined when console.log. I also defined the multer middleware according to other posts so I don't know what happened. But when I upload an image through postman it works with returning an 201as expected. Any help is appreciated!
ReactJS function:
const UploadImageToBackend = async () => {
console.log(UploadedImage) //UploadedImage is something like /Users/.../.jpg
let formData = new FormData()
formData.append('profile',
{name : new Date() + "_profile", uri: UploadedImage, type:'image/jpg'})
try{
const res = await client.post('/upload-avatar',formData, {
headers:{
Accept : 'application/json',
authorization: 'JWT some JWT'
},
})
console.log(res.data)
}catch(error){
console.log(error.response.data) //gives "Error while uploading Image, try after some time" error
}
}
Backend Routes:
const fileFilter = (req,file,callback) => {
if (file.mimetype.startsWith('image')){
callback(null,true)
}else{
callback('invalid image file', false)
}
}
const storage = multer.diskStorage({})
const uploads = multer({storage, fileFilter})
router.post('/upload-avatar',isAuth, uploads.single('profile'),uploadProfile)
backend upload function (to Cloudinary)
exports.uploadProfile = async (req,res)=>{
const user = req.user
if (!user){
return res.status(401).json({success:false,message:"unauthorized access!"})
}else{
console.log(req.file.path) //undefined
try{
const upload_result = await cloudinary.uploader.upload(req.file.path, {
public_id: `${user._id}_profile`,
width:500,
height:500,
crop: 'fill'
})
await User.findByIdAndUpdate(user._id, {avatar: upload_result.url})
res.status(201).json({success:true,message: "Profile picture successfully uploaded"})
}catch (error){
res.status(500).json({success:false,message:
"Error while uploading Image, try after some time"})
}
}
}
1 answers
Answer question0
create this function (to upload into Cloudinary), e.g. "lib/cloudinary.js" and add this code:
import cloudinary from "cloudinary";
cloudinary.config({
cloud_name: "YOUR_CLOUD_NAME",
api_key: "YOUR_API_KEY",
api_secret: "YOUR_API_SECRET",
});
const upload = {};
upload.subir = async (file) => {
try {
const res = await cloudinary.uploader.upload(file);
// return the secure url
return res.secure_url;
} catch (error) {
return error;
}
}
export default upload;
Now in your controller, e.g. add this code, do not forget to install express-fileupload:
import cloudinary from "../lib/cloudinary.js";
const upload = {};
upload.uploadProfile = async (req, res) => {
const a_file = await cloudinary.subir(req.files.a_file.tempFilePath);
// show the secure url, e.g.:
// https://res.cloudinary.com/xx/image/upload/yy/winter.jpg
console.log(a_file);
// ... more code
}
export default upload;
Now in your main application e.g., "app.js" add this code to use the express middleware for uploading files:
import express from 'express';
import fileUpload from 'express-fileupload';
const app = express();
app.use(express.json());
app.use(express.urlencoded({extended: true}));
app.use(fileUpload({useTempFiles: true}));
// ... more code
Test the function using postman and the file has been uploaded
NOTE: Do not forget and remember that this only is an alternative, exist anothers many ways i hope you understand and i hope it works for you