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call lat,lon: https://api.openweathermap.org/geo/1.0/direct?q=London&limit=5&appid=e358abeeb6acddcd484cba258580f713
call directly: https://api.openweathermap.org/data/2.5/weather?q=London&appid=e358abeeb6acddcd484cba258580f713
** TODO: fix the app to use the api call to get the weather data: enter invalid city