How can I implement file upload in a Flask frontend?

How can I implement file upload in a Flask frontend?

You can use Flask's built-in request object to handle file uploads. First, ensure you have a form in your HTML with the attribute enctype='multipart/form-data'.

What do I need to include in my HTML form?

Your HTML form should include an <input type='file'> element for users to select files. Also, add a submit button.

How do I handle the uploaded file in Flask?

In your Flask route, use request.files['file'] to access the uploaded file. You can then save it using the save() method.

Are there any size limits for file uploads?

Yes, Flask has a default limit of 16MB for file uploads. You can change this by setting MAX_CONTENT_LENGTH in your app's config.