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Top Forums Programming Wuhan Coronavirus Status App for China - Rapid Prototype using MQTT and the IoT OnOff IOS App Post 303043643 by Neo on Sunday 2nd of February 2020 10:25:57 PM
Old 02-02-2020
With a little bit of work, was able to build a nice "Wuhan Coronavirus Status" app using MQTT and the IoT-OnOff app. More on this technique here:

ESP32 (ESP-WROOM-32) as an MQTT Client Subscribed to Linux Server Load Average Messages

The result turned out nice, I think. I like the look and feel of this app considerably better than other apps I prototyped, and it is much more cost effective (free).

If anyone wants to build such an app like this, please just let me know (post back in this thread) and I will show you how to build this, step-by-step. If you want to you my MQTT server / service, I can make that happen for you as well.

So, in nutshell, you can have this "Wuhan Coronavirus" public service status app working for free, 100% and I assure you, 100% your usage data will be private and never shared with any third party, never under any circumstances. This is public app to help others, not to make money (as many companies seem to forget in times of crisis and look to profit from the misfortunes of others. Not here at unix.com! This app I created has one purpose - to help those who might need this information during a humanitarian crisis. This is how IT should really be used, to help others in times of need and crisis. If one person benefits, I am more than happy enough. I don't need money, fame or fortune from IT.


Wuhan Coronavirus Status App for China - Rapid Prototype using MQTT and the IoT OnOff IOS App-img_0463jpg


Reference to first prototype (retired):

Wuhan Coronavirus Status for China - Rapid Prototype Blynk App with ESP8266

For the next part of this project, I think I will build a Node-RED dashboard app for macOS. I installed Node-RED yesterday when searching for dashboard app, but I need to import the dashboard widgets and set it up to display a dashboard with MQTT data,
This User Gave Thanks to Neo For This Post:
 

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WebService::CIA::Parser(3pm)				User Contributed Perl Documentation			      WebService::CIA::Parser(3pm)

NAME
WebService::CIA::Parser - Parse pages from the CIA World Factbook SYNOPSIS
use WebService::CIA::Parser; my $parser = WebService::CIA::Parser->new; my $data = $parser->parse($string); DESCRIPTION
WebService::CIA::Parser takes a string of HTML and parses it. It will only give sensible output if the string is the HTML for a page whose URL matches "https://www.cia.gov/library/publications/the-world-factbook/print/[a-z]{2}.html" This parsing is somewhat fragile, since it assumes a certain page structure. It'll work just as long as the CIA don't choose to alter their pages. METHODS
"new" Creates a new WebService::CIA::Parser object. It takes no arguments. "parse($html)" Parses a string of HTML take from the CIA World Factbook. It takes a single string as its argument and returns a hashref of fields and values. The values are stripped of all HTML. "<br>" tags are replaced by newlines. It also creates four extra fields: "URL", "URL - Print", "URL - Flag", and "URL - Map" which are the URLs of the country's Factbook page, the printable version of that page, a GIF map of the country, and a GIF flag of the country respectively. EXAMPLE
use WebService::CIA::Parser; use LWP::Simple qw(get); $html = get( "https://www.cia.gov/library/publications/the-world-factbook/print/uk.html" ); $parser = WebService::CIA::Parser->new; $data = $parser->parse($html); print $data->{"Population"}; AUTHOR
Ian Malpass (ian-cpan@indecorous.com) COPYRIGHT
Copyright 2003-2007, Ian Malpass This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The CIA World Factbook's copyright information page (<https://www.cia.gov/library/publications/the-world-factbook/docs/contributor_copy- right.html>) states: The Factbook is in the public domain. Accordingly, it may be copied freely without permission of the Central Intelligence Agency (CIA). SEE ALSO
WebService::CIA perl v5.8.8 2008-02-04 WebService::CIA::Parser(3pm)
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