React + Django csv handle - reactjs

Question

I'm working on a Data Mining app with React and Django, I kind of understand how to send the file to Django, but how do I read the file, apply an algorithm and return the process data to react for showing it? The objective of the app is to read a differente csv file each time, so, I don't need to create models, don't even need to store the data, just handle the information.
I've seen a lot of tutorials, but everyone make use of a database, is there a method to process the file without saving anything, just processing and return the process data for create graphs and stuff? how an I do that?
This is my attempt with a react component for sending the file to django, but now, whats next? how do I read it in django? and how do I send the process data back to react?
import { useState } from "react";
function DragDropFiles(){
const [selectedFile, setSelectedFile] = useState();
const [isFilePicked, setIsFilePicked] = useState(false);
const changeHandler = (event) => {
setSelectedFile(event.target.files[0]);
setIsFilePicked(true);
}
const handleSubmission = async () =>{
const formData = new FormData();
formData.append('File', selectedFile);
let newData = await fetch(
base_url,
{
method: 'POST',
headers: {
'Content-Type': 'multipart/form-data'
},
body: formData,
}
)
.then((response) => response.json())
.then((result) =>{
console.log('Success:', result);
})
.catch((error) =>{
console.log('Error:', error);
});
};
return(
<>
<div>
<input type="file" name="file" onChange={changeHandler} />
{isFilePicked ? (
<div>
<p>Filename: {selectedFile.name}</p>
<p>Filetype: {selectedFile.type}</p>
<p>Size in bytes: {selectedFile.size}</p>
</div>
) : (
<p>Select a file to show details</p>
)}
<div>
<button onClick={handleSubmission}>Submit</button>
</div>
</div>
</>
);
};
export default DragDropFiles;
I know that I have to import pandas, numpy and other libraries for handle data, but I mean, literally, how do I "receive" the csv file in the backend?
Thanks.