Python flask Web app design & development

I need a web app. A front page with login button, website features, contact us, FAQs on it.

After logging in, there will be 3 pages, in 1 page – live alerts from JSON format will come. 2nd page YouTube videos should be displayed. 3rd page is manually updated table with some data.

My backend files will be in Python Json format. Would you be able to design and develop a web app which can read files from JSON format.

Please let me know if you can do it.