To get Flask to download a CSV file to the user, we pass a CSV string to the make_response function, which returns a response object. Then we add a header which tells the browser to accept the file as a download. The mimetype also must be set to text/csv in order to get the web browser to save it in something other than an HTML document.
from flask import Flask, make_response
app = Flask(__name__)
@app.route('/csv/')
def download_csv():
csv = 'foo,bar,baz\nhai,bai,crai\n'
response = make_response(csv)
cd = 'attachment; filename=mycsv.csv'
response.headers['Content-Disposition'] = cd
response.mimetype='text/csv'
return response
Name: vinod
Creation Date: 2018-08-14
does it work for an SPA frontend?