Downloading flask-generated html page

Question

I want to put a button on a flask-generated web page and let a user download the html page as a file when the user clicks the button. What I imagine is something like saving the rendered html into BytesIO and send it via send_file, but I can't find how to save the rendered page into a file object. How can I do that?

Answer 1

You could try something like this:

import StringIO
from flask import Flask, send_file, render_template

def page_code():   
    strIO = StringIO.StringIO()
    strIO.write(render_template('hello.html', name='World'))
    strIO.seek(0)
    return send_file(strIO,
                     attachment_filename="testing.txt",
                     as_attachment=True)

It is not tested but should give you an idea.