Flask download file differ from server

Any way to clear the cache from Flask? Your email address will not be published. Roy Tutorials Technical… Theoretical… Practical…. Introduction Here I am going to show a simple example on how to download a file from web application using Python Flask. Prerequisites Python 3. Project Directory First step is to create a project root directory under which I will put all the required files for the project.

Configuring Flask Create the below app. UI Template Now create a download. Testing the Application Now navigate to the project root directory from command line tool and execute the command python main. Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Download a file from a Flask-based Python server Ask Question. Asked 5 years, 5 months ago. Active 2 years, 6 months ago. Viewed 34k times. So I wrote the following code: app.

Error But this code doesn't seem to work. How to make it so you can acess it not only on the local network? Save my name, email, and website in this browser for the next time I comment. August 27, August 7, July 31, July 17, May 28, November 14, July 20, December 2, June 23, This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More. Unit tests in Django. How to use Lambda in Python. Illegal start of expression in Java.

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We need to specify a directory to the Flask app where the uploaded files would be stored. Above line creates a uploads folder in the same directory where the src code of the site is stored. We should also check for file extension that the user is uploading as there would be some specific type of file that the site can process.

Also there is security issue if the user can upload any type of file. User might upload html file that can cause XSS cross site-scripting problems. For this post, we only need pdf file extensions as this Flask app would remove watermark from pdf files created by CamScanner App Famous App for scanning documents through Mobile Camera.

Pdf files would have watermark at the bottom similar to what is shown in the image below :.