Note on heroku, the web process will shutdown after idling, this cause the web and data source reload

• so if running on local machine, the source will not reload, it will not fetch the newest data even though refresh broswer 2020-05-10T10:31:10.177703+00:00 heroku[web.1]: Idling 2020-05-10T10:31:10.179814+00:00 heroku[web.1]: State changed from up to down 2020-05-10T10:31:11.048445+00:00 heroku[web.1]: Stopping all processes with SIGTERM 2020-05-10T10:31:11.084271+00:00 app[web.1]: [2020-05-10 10:31:11 +0000] [18] [INFO] Worker exiting (pid: 18) 2020-05-10T10:31:11.084322+00:00 app[web.1]: [2020-05-10 10:31:11 +0000] [10] [INFO] Worker exiting (pid: 10) 2020-05-10T10:31:11.084888+00:00 app[web.1]: [2020-05-10 10:31:11 +0000] [4] [INFO] Handling signal: term 2020-05-10T10:31:11.385620+00:00 app[web.1]: [2020-05-10 10:31:11 +0000] [4] [INFO] Shutting down: Master 2020-05-10T10:31:11.454991+00:00 heroku[web.1]: Process exited with status 0
• when open again in broswer 2020-05-10T10:58:43.432525+00:00 heroku[web.1]: Unidling 2020-05-10T10:58:43.456084+00:00 heroku[web.1]: State changed from down to starting 2020-05-10T10:58:49.873353+00:00 heroku[web.1]: Starting process with command gunicorn covid19:server 2020-05-10T10:58:52.076488+00:00 heroku[web.1]: State changed from starting to up 2020-05-10T10:58:51.892412+00:00 app[web.1]: [2020-05-10 10:58:51 +0000] [4] [INFO] Starting gunicorn 20.0.4 2020-05-10T10:58:51.892964+00:00 app[web.1]: [2020-05-10 10:58:51 +0000] [4] [INFO] Listening at: http://0.0.0.0:58560 (4) 2020-05-10T10:58:51.893091+00:00 app[web.1]: [2020-05-10 10:58:51 +0000] [4] [INFO] Using worker: sync 2020-05-10T10:58:51.897339+00:00 app[web.1]: [2020-05-10 10:58:51 +0000] [10] [INFO] Booting worker with pid: 10 2020-05-10T10:58:51.976966+00:00 app[web.1]: [2020-05-10 10:58:51 +0000] [18] [INFO] Booting worker with pid: 18 2020-05-10T10:58:56.678826+00:00 app[web.1]: /app/covid19.py:192: SettingWithCopyWarning:

Covid19 Dashboard Web App using Python (Plotly Dash)

Create your own dashboard web app with free resources using python only All tools stated here are free.

Data source provided by Johns Hopkins University Center for Systems Science and Engineering (JHU CSSE):

https://systems.jhu.edu/

Prerequisite:

• Basic python - numpy, pandas, matplotlib, plotly dash
• Basic knowledge of creating python virtual environment. Recommended using pyenv or Anaconda

Tools:

• VS Code, Pycharm Community or your personal choice of IDE
• Python packages required as stated in requirements.txt
• Sign up Heroku and Mapbox

Version 1.0 Dashboard (Source Code - covid19.py included)

Comments are included in the source code covid19.py to assist you.
Click here to access the web app

• Just clone this git, deploy to your own free Heroku server, and you are ready to go. Guide to deployment from Heroku official Guide
• Ensure all files and folders (except folder image) are deployed to Heroku server.
• Remember to create your personal mapbox access token. and edit in covid19.py
• Optional: Create your own Addthis share button.

---

Version 2.0 Dashboard based on bootstrap 4 (Source Code not included as it is still wip)

Click here to take a look at the web app

Time Map and Bar Chart animation created with Flourish Studio and easily embeded into Plotly Dash with html.Iframe.