Flask how to link to startic file download

The reason could be, you want to generate reports from database and download these reports. Now I will create the web application that will download any kind of file which is kept in a server location. First step is to create a project root directory under which I will put all the required files for the project. Create the below app. This file should be created under the project root directory. Notice how I create flask instance.

Next I will create main. This is quite a common requirement for webapps nowadays. Some examples are :. We will be creating back-end to remove watermark from pdf files. For that we need to get user file, process remove watermark from pdf file and provide processed file to user for download. We will create a simple HTML page that provides a button to select file and another button to upload that file.

Let the HTML page be index. First, we want the index page template to show the visitor the name of the shop, as well as a list of books that are on sale. You will notice that the title of the page is now "Flask Shop", and we have included a list of Flask books for sale. The visitor should be able to see on the page this list of books when they visit the home page of our shop application. Take a look at the head section of the HTML template again.

You will notice that now we are linking to a new file, specifically a CSS stylesheet named "style. Inside this static folder, let's create the new file "style. With these style rules defined, our application will shed the plain white background we saw in our "Hello, World" example for a more colorful "firebrick" red background. We are also defining distinctive white styling for the text on the page.

Now let us actually update the message we are displaying on the page. Find the hello function and update the message variable as follows:. Now, restart your server, and run python serve.

Then visit the application URL at localhost and you should see our list of Flask books. The contents will be some JavaScript code to dynamically change the background color of our shop application every second.

This creates a dramatic effect to draw attention to the limited time sale in our fictional Flask shop. Flask: force download pdf files to open in browser Ask Question.

Asked 4 years, 10 months ago. Active 4 years, 10 months ago. Viewed 5k times. Here is my function so far: app. Note: I'm not using Flask-Uploads at the moment but I probably will down the line. Community Bot 1 1 1 silver badge. Johnny Metz Johnny Metz 3, 9 9 gold badges 50 50 silver badges bronze badges. Flask can do it easily, out of the box. I put the css file in a subdirectory called css and the image in a subdirectory called img.

This is not a requirement, but might be a good practice to arrange them this way. See the example: We have the following directory layout:.