require 'myweatherfeed'


api_key = '64xxxxxxxxxxx2346354'

feed = MyWeatherFeed.new '/home/james/jamesrobertson.eu/weather', \
                 location: 'Lochend, Edinburgh', api_key: api_key, \
                          url_base: 'http://www.jamesrobertson.eu/',\
                                      dx_xslt: '/xsl/dynarex-b.xsl', \
                              rss_xslt: '/xsl/feed.xsl', refreshrate: 10

def feed.on_change(now)
  puts ' -- ' + now.summary
end

feed.start

Console output:

-- Clear

The myweatherfeed gem now features a start method to run the update within a look which by default runs ever minute. In this example it runs every 10 minutes. Also there is an on_change method which can be overridfen by the consumer to create a notification, callback, or webhook.

The myweatherfeed gem now features a refresh rate which is set from the intialize method as a named argument called refreshrate and is expressed in minutes e.g.

require 'myweatherfeed'

feed = MyWeatherFeed.new '/tmp/weather', location: 'Lochend, Edinburgh', \
                               api_key: '465xxxxxxxxxxxxxxxxx76ea01cbff4', \
                                    url_base: 'http://www.jamesrobertson.eu/',\
                       dx_xslt: '/xsl/dynarex-b.xsl', rss_xslt: '/xsl/feed.xsl'

loop {puts '...'; feed.update; sleep 60}

Even though the loop controls when the feed is updated, it is helpful for the gem to control this in events where an attempts is made to refresh the feed more than once a minute.

Notes:

1. The next refresh time is stored in a hidden file called .myweatherfeed which is in the same file directory as the RSS file
2. In addition to limiting the refresh rate, a new feed item will only be added if the notice has changed since the previous notice.

require 'myweatherfeed'

feed = MyWeatherFeed.new '/tmp/weather', location: 'Lochend, Edinburgh', \
                             api_key: '465xxxxxxxxxxxxxxxxxxx6ea01cbff4', \
                                 url_base: 'http://www.jamesrobertson.eu/',\
                       dx_xslt: '/xsl/dynarex-b.xsl', rss_xslt: '/xsl/feed.xsl'
feed.update

The above code fetches the weather forecast from forecast.io and then updates the RSS feed at http://www.jamesrobertson.eu/weather/rss.xml, and RSS file is created if doesn't already exist. The filepath would normally point to the webserver directory, however I set it to /tmp for testing purposes.

• Introducing the daily_notices gem http://www.jamesrobertson.eu/snippets/2015/oct/27/introducing-the-daily_notices-gem.html
• Introducing the MyWeatherForecast gem http://www.jamesrobertson.eu/snippets/2015/oct/22/introducing-the-myweatherforecast-gem.html

myweatherfeed gem weather forecast dailynotices