This sample gets the weather for 3 cities, using different time intervals and repeat counts.
To use this weather forecast sample, you will have to sign up for a free subscription to one of the weather services at
OpenWeatherMap (for example, Current Weather Data or 5 Day Forecast) and get an API key (APPID), which
must be substituted (replace placeholder <YOUR_APP_TOKEN>) in the URL line of streams config
file tnt-data-source.xml. NOTE: it may take up to 1 hour after registering, to receive your APPID.
You can also change the three city names in the config file.
The API documentation in OpenWeatherMap describes the format of the URL lines.