Flask: Download a csv file on clicking a button [duplicate]

Answer 1

You can use flask.send_file() to send a static file:

from flask import send_file

@app.route('/getPlotCSV') # this is a job for GET, not POST
def plot_csv():
    return send_file('outputs/Adjacency.csv',
                     mimetype='text/csv',
                     attachment_filename='Adjacency.csv',
                     as_attachment=True)