multer req file is undefined but why? - node.js

Question

Can anyone tell me why my req.file is undefined?
I add the content header type,
I add single.photo but I get no data
frontend:
## data is equal to this:
Object {
"filename": "3ccc61e1-3c49-4538-9594-b4987b3fa66f.jpg",
"type": "image/jpg",
"uri": "file:///data/user/0/host.exp.exponent/cache/ExperienceData/UNVERIFIED-xxxxx-test/ImagePicker/3ccc61e1-3c49-4538-9594-b4987b3fa66f.jpg",
}
const uploadStory = async data => {
try {
const form = new FormData();
form.append('photo', data);
const options = {
headers: {
'Content-Type':'multipart/form-data',
'Accept':'application/json'
},
method: 'POST',
body: form
};
const res = await fetch('http://xxxxxxx.xx:3000/createstory', options);
const out = await res.json();
return out;
} catch(e) {
console.log(e);
return e;
}
};
export default uploadStory;
backend:
const multer = require('multer');
const storage = multer.diskStorage({
destination: function(req, file, cb) {
cb(null, 'uploads/')
},
filename: function(req, file, cb) {
console.log(req);
cb(null, `${file.filename}-${Date.now()}`)
}
});
const upload = multer({
storage: storage
}).single('photo');
module.exports = async (req, res, next) => {
upload(req, res, function(err) {
if(err) {
console.log(err)
return;
} else if (err instanceof multer.MulterError) {
console.log(err);
} else {
console.log(req.file);
console.log('hi')
}
});
};
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Answer 1

Make sure your data object looks like this
{
name: "3ccc61e1-3c49-4538-9594-b4987b3fa66f.jpg",
type: "image/jpg",
uri: "file:///data/user/0/host.exp.exponent/cache/ExperienceData/UNVERIFIED-xxxxx-test/ImagePicker/3ccc61e1-3c49-4538-9594-b4987b3fa66f.jpg",
}
In your data Object your key is filename instead of name
Change your upload to this
const upload = multer({
storage: storage,
});
And then,
module.exports = upload.single('photo'), async (req, res) => {
try {
console.log(req.body); // Body Here
console.log(req.file); // File Here
res.status(500).send('Fetch Completed Successfully');
} catch (error) {
console.log(error);
res.status(500).send('Error');
}
}