How can I implement asynchronous file uploads in Flask?

How can I implement asynchronous file uploads in Flask?

You can use Flask with libraries like Flask-SocketIO or asyncio to handle asynchronous file uploads. Would you like a code example?

Yes, please provide a code example for that.

Sure! Here's a simple example using Flask and Flask-SocketIO:

from flask import Flask, request, jsonify
from flask_socketio import SocketIO

app = Flask(__name__)
socketio = SocketIO(app)

@app.route('/upload', methods=['POST'])
def upload_file():
    file = request.files['file']
    file.save(f'uploads/{file.filename}')
    return jsonify({'message': 'File uploaded successfully!'}), 200

if __name__ == '__main__':
    socketio.run(app)

This code sets up a basic file upload route. You can enhance it with SocketIO for real-time updates.

How do I handle multiple file uploads at once?

To handle multiple file uploads, you can modify the HTML form to allow multiple files and adjust your Flask route to process them. Here's an example:

@app.route('/upload', methods=['POST'])
def upload_files():
    files = request.files.getlist('files')
    for file in files:
        file.save(f'uploads/{file.filename}')
    return jsonify({'message': 'All files uploaded successfully!'}), 200

Make sure your form includes multiple in the file input.