Webserver that generates files of 100MB on the fly

server.py

# run with FLASK_APP=server.py flask run
# download your file on http://127.0.0.1:5000/random
from flask import Flask
from flask import Response
import os

app = Flask(__name__)

@app.route('/random')
def gen_random():
  def generate():
    for i in range(1024 * 100) :
      yield os.urandom(1024)
  return Response(generate(), mimetype='application/octet-stream')