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OpenWeatherMap
==============
OpenWeatherMap is a haskell library to access <https://openweathermap.org/api>.
Requirements
============
OpenWeatherMap is written in Haskell with [GHC](http://www.haskell.org/ghc/).
All required Haskell libraries are listed in [openweathermap.cabal](openweathermap.cabal).
Use [cabal-install](http://www.haskell.org/haskellwiki/Cabal-Install) to fetch
and build all pre-requisites automatically.
Command-line utility
====================
The command-line utility `openweathermap` provides a means
to get human readable weather infromation.
Usage
-----
```
Usage: openweathermap ([-K|--api-key-file APIKEYFILE] | [-k|--api-key APIKEY])
((-c|--city CITY) | --lat NUM --lon NUM) [-d|--debug]
Available options:
-K,--api-key-file APIKEYFILE
Read API key from this file
-k,--api-key APIKEY API key
-c,--city CITY City name
--lat NUM Latitude in decimal degrees
--lon NUM Longitude in decimal degrees
-d,--debug Enable debug
-h,--help Show this help text
```
By default, `openweathermap` reads the API key
from the `$XDG_CONFIG_HOME/openweathermap/key` file, where
[`$XDG_CONFIG_HOME`](https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html)
is typically `~/.config` on Linux systems.
Examples
--------
```
$ openweathermap -c norilsk
Norilsk,RU (69.35°, 88.2°): Clouds, H 100 %, P 753 mmHg, T +4 °C, ↓ 1 m/s
$ openweathermap --lat 55.7522200 --lon 37.6155600
Moscow,RU (55.75°, 37.62°): Clear, H 45 %, P 762 mmHg, T +18..+21 °C, → 4 m/s
```
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