Comments (3)
miguelgrinberg
commented on June 11, 2024
1
For such a large export anything you do in Python is going to be painfully slow. The most performant option is to use an export tool offered by your database.
You can write the exported file to a designated directory, maybe using the user ID as filename. Then you can add a download route under authentication that uses send_file to return this file as a download.
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miguelgrinberg
commented on June 11, 2024
1
I don't have anything to share. For serving the csv file you can see the send_file() docs from Flask. For generating a CSV efficiently you have to look at what options your database provides. Postgres has a pg_dump command, and also a COPY statement in their SQL implementation. There is a mysqldump as well for MySQL.
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Tes3awy
commented on June 11, 2024
Can you help me with an example of your suggestion?
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