Upload multiple files to Symfony Backend manually (without form) - reactjs

Question

I'm facing an issue trying to send multiples files from a ReactJS App to a Symfony Backend.
I upload two files but only one is visible in my Symfony backend.
Data are sent from a ReactJS dropzone, I well checked that the two files are sent via formData, I well used the 'content-type': 'multipart/form-data' to post the data.
In Chrome Newtwork Tab, the Form Data details shows that two files are well attached to the request :
------WebKitFormBoundaryTif9sihCtI30UXXS Content-Disposition: form-data; name="file"; filename="glacier-583419_960_720.jpg"
Content-Type: image/jpeg
------WebKitFormBoundaryTif9sihCtI30UXXS Content-Disposition: form-data; name="file"; filename="image-ile.jpg" Content-Type:
image/jpeg
Nevertheless, in my Symfony backend the File Parameter Bag only shows one file :
return $request->files;
Serialized response :
{
"parameters": {
"file": {
"test": false,
"original_name": "glacier-583419_960_720.jpg",
"mime_type": "image/jpeg",
"error": 0
}
},
"file_keys": [
"error",
"name",
"size",
"tmp_name",
"type"
]
}
As you can see, in "parameters", only one file is present instead of two.
Is anybody already encountered this problem ? I don't have any idea of what could be the issue ?

Answer 1

I solved my issue, it was trivial but it could help someone else for future readings.
As per indicated in the Form Data sent :
------WebKitFormBoundaryTif9sihCtI30UXXS Content-Disposition: form-data; name="file"; filename="glacier-583419_960_720.jpg" Content-Type: image/jpeg
------WebKitFormBoundaryTif9sihCtI30UXXS Content-Disposition: form-data; name="file"; filename="image-ile.jpg" Content-Type: image/jpeg
Each element added in the Form Data had the same name value.
Here is the problem :
var tempFormData = new FormData();
setFormData(acceptedFiles.map((file)=>{
tempFormData.append('file', file);
}));
Corrected code :
var tempFormData = new FormData();
setFormData(acceptedFiles.map((file)=>{
tempFormData.append(file.name, file);
}));
So the error was not coming from Symfony but from front-end App not well formatting the data sent.