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VistasHow to upload image with optional data in multer?
File object sending from frontend using react and formData I have manually made the file object looks like...
Output of files
After uploading a file i am getting the object in multer and express-upload
console.log(req.files.productImages)
[{
"name": "galaxy-1.jpeg",
"data": {
"$binary": "/9j/4AAQSkZJRgABAQAAAQABAAD/2FasgasadagzxvADFCaBGRRXSADa0"
},
"size": 2895,
"encoding": "7bit",
"tempFilePath": "",
"truncated": false,
"mimetype": "image/jpeg",
"md5": "b7192406a75b765dd0582daa4807ca71"
}]
I want to get file object with label: value.
example:
[{
"label": "oxygen blue",
"name": "galaxy-1.jpeg",
"data": {
"$binary": "/9j/4AAQSkZJRgABAQAAAQABAAD/2FasgasadagzxvADFCaBGRRXSADa0"
},
"size": 2895,
"encoding": "7bit",
"tempFilePath": "",
"truncated": false,
"mimetype": "image/jpeg",
"md5": "b7192406a75b765dd0582daa4807ca71"
}]
Please help me to achieve this thing.
1 Respuestas
Responde la pregunta0
Afaik this is not possible as multer will either receive the file itself without any additonal custom properties and/or any text-fields present in the form-data request. But ... multer allows you to access both files and text-fields.
So assuming your request looks something like this:
curl --location --request POST 'localhost:3000/test-upload' \
--form 'files=@"/path/to/file1"' \
--form 'label="custom-label-file1"' \
--form 'label="custom-label-file2"' \
--form 'files=@"/path/to/file2"'
and this server-side code:
app.post('/test', upload.array('files'), function (req, res, next) {
console.log(req.files)
console.log(req.body)
res.send(...);
})
Then the following will be logged to the console:
Uploaded files: [
{
fieldname: 'files',
originalname: 'file1',
encoding: '7bit',
mimetype: 'text/plain',
...
},
{
fieldname: 'files',
originalname: 'file2',
encoding: '7bit',
mimetype: 'application/pdf',
...
}
]
Uploaded text fields: { label: [ 'custom-label-file1', 'custom-label-file2] }
According to this github-issue multer preserves the order, so you could use the corresponding index of the files to find their labels.