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*wttr.in — the right way to check the weather!*
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wttr.in is a console-oriented weather forecast service that supports various information
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representation methods like terminal-oriented ANSI-sequences for console HTTP clients
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(curl, httpie, or wget), HTML for web browsers, or PNG for graphical viewers.
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wttr.in uses [wego](http://github.com/schachmat/wego) for visualization
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and various data sources for weather forecast information.
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You can see it running here: [wttr.in](http://wttr.in).
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## Usage
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You can access the service from a shell or from a Web browser like this:
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$ curl wttr.in
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Weather for City: Paris, France
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\ / Clear
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.-. 10 – 11 °C
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― ( ) ― ↑ 11 km/h
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`-’ 10 km
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/ \ 0.0 mm
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Here is an actual weather report for your location (it's live!):
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(It's not your actual location - GitHub's CDN hides your real IP address with its own IP address,
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but it's still a live weather report in your language.)
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Want to get the weather information for a specific location? You can add the desired location to the URL in your
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request like this:
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$ curl wttr.in/London
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$ curl wttr.in/Moscow
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If you omit the location name, you will get the report for your current location based on your IP address.
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Use 3-letter airport codes in order to get the weather information at a certain airport:
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$ curl wttr.in/muc # Weather for IATA: muc, Munich International Airport, Germany
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$ curl wttr.in/ham # Weather for IATA: ham, Hamburg Airport, Germany
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Let's say you'd like to get the weather for a geographical location other than a town or city - maybe an attraction
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in a city, a mountain name, or some special location. Add the character `~` before the name to look up that special
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location name before the weather is then retrieved:
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$ curl wttr.in/~Vostok+Station
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$ curl wttr.in/~Eiffel+Tower
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$ curl wttr.in/~Kilimanjaro
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For these examples, you'll see a line below the weather forecast output that shows the geolocation
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results of looking up the location:
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Location: Vostok Station, станция Восток, AAT, Antarctica [-78.4642714,106.8364678]
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Location: Tour Eiffel, 5, Avenue Anatole France, Gros-Caillou, 7e, Paris, Île-de-France, 75007, France [48.8582602,2.29449905432]
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Location: Kilimanjaro, Northern, Tanzania [-3.4762789,37.3872648]
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You can also use IP-addresses (direct) or domain names (prefixed with `@`) to specify a location:
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$ curl wttr.in/@github.com
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$ curl wttr.in/@msu.ru
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To get detailed information online, you can access the [/:help](http://wttr.in/:help) page:
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$ curl wttr.in/:help
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### Weather Units
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By default the USCS units are used for the queries from the USA and the metric system for the rest of the world.
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You can override this behavior by adding `?u` or `?m` to a URL like this:
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$ curl wttr.in/Amsterdam?u
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$ curl wttr.in/Amsterdam?m
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## Supported output formats
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wttr.in currently supports three output formats:
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* ANSI for the terminal;
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* HTML for the browser;
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* PNG for the graphical viewers.
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The ANSI and HTML formats are selected basing on the User-Agent string.
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The PNG format can be forced by adding `.png` to the end of the query:
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$ wget wttr.in/Paris.png
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You can use all of the options with the PNG-format like in an URL, but you have
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to separate them with `_` instead of `?` and `&`:
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$ wget wttr.in/Paris_0tqp_lang=fr.png
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Useful options for the PNG format:
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* `t` for transparency (`transparency=150`);
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* transparency=0..255 for a custom transparency level.
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Transparency is a useful feature when weather PNGs are used to add weather data to pictures:
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$ convert source.jpg <( curl wttr.in/Oymyakon_tqp0.png ) -geometry +50+50 -composite target.jpg
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In this example:
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* `source.jpg` - source file;
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* `target.jpg` - target file;
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* `Oymyakon` - name of the location;
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* `tqp0` - options (recommended).
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## Moon phases
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wttr.in can also be used to check the phase of the Moon. This example shows how to see the current Moon phase:
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$ curl wttr.in/Moon
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Get the Moon phase for a particular date by adding `@YYYY-MM-DD`:
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$ curl wttr.in/Moon@2016-12-25
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The Moon phase information uses [pyphoon](https://github.com/chubin/pyphoon) as its backend.
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## Internationalization and localization
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wttr.in supports multilingual locations names that can be specified in any language in the world
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(it may be surprising, but many locations in the world don't have an English name).
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The query string should be specified in Unicode (hex-encoded or not). Spaces in the query string
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must be replaced with `+`:
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$ curl wttr.in/станция+Восток
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Weather report: станция Восток
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Overcast
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.--. -65 – -47 °C
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.-( ). ↑ 23 km/h
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(___.__)__) 15 km
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0.0 mm
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The language used for the output (except the location name) does not depend on the input language
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and it is either English (by default) or the preferred language of the browser (if the query
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was issued from a browser) that is specified in the query headers (`Accept-Language`).
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The language can be set explicitly when using console clients by using command-line options like this:
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curl -H "Accept-Language: fr" wttr.in
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http GET wttr.in Accept-Language:ru
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The preferred language can be forced using the `lang` option:
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$ curl wttr.in/Berlin?lang=de
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The third option is to choose the language using the DNS name used in the query:
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$ curl de.wttr.in/Berlin
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wttr.in is currently translated into 54 languages, and the number of supported languages is constantly growing.
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See [/:translation](http://wttr.in/:translation) to learn more about the translation process,
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to see the list of supported languages and contributors, or to know how you can help to translate wttr.in
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in your language.
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## Installation
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To install the application:
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1. Install external dependencies
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2. Install Python dependencies used by the service
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3. Get a WorldWeatherOnline API Key
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4. Configure wego
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5. Configure wttr.in
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6. Configure the HTTP-frontend service
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### Install external dependencies
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wttr.in has the following external dependencies:
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* [golang](https://golang.org/doc/install), wego dependency
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* [wego](https://github.com/schachmat/wego), weather client for terminal
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After you install [golang](https://golang.org/doc/install), install `wego`:
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$ go get -u github.com/schachmat/wego
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$ go install github.com/schachmat/wego
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### Install Python dependencies
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Python requirements:
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* Flask
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* geoip2
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* geopy
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* requests
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* gevent
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If you want to get weather reports as PNG files, you'll also need to install:
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* PIL
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* pyte (>=0.6)
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* necessary fonts
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You can install most of them using `pip`.
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If `virtualenv` is used:
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$ virtualenv ve
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$ ve/bin/pip install -r requirements.txt
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$ ve/bin/pip bin/srv.py
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Also, you need to install the geoip2 database.
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You can use a free database GeoLite2 that can be downloaded from (http://dev.maxmind.com/geoip/geoip2/geolite2/).
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### Get a WorldWeatherOnline key
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To get a WorldWeatherOnline API key, you must register here:
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https://developer.worldweatheronline.com/auth/register
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### Configure wego
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After you have a WorldWeatherOnline key, you can configure `wego`:
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$ cat ~/.wegorc
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{
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"APIKey": "00XXXXXXXXXXXXXXXXXXXXXXXXXXX",
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"City": "London",
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"Numdays": 3,
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"Imperial": false,
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"Lang": "en"
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}
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The `City` parameter in `~/.wegorc` is ignored.
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### Configure wttr.in
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Configure the following environment variables that define the path to the local `wttr.in`
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installation, to the GeoLite database, and to the `wego` installation. For example:
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export WTTR_MYDIR="/home/igor/wttr.in"
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export WTTR_GEOLITE="/home/igor/wttr.in/GeoLite2-City.mmdb"
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export WTTR_WEGO="/home/igor/go/bin/wego"
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export WTTR_LISTEN_HOST="0.0.0.0"
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export WTTR_LISTEN_PORT="8002"
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### Configure the HTTP-frontend service
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It's recommended that you also configure the web server that will be used to access the service:
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server {
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listen [::]:80;
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server_name wttr.in *.wttr.in;
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access_log /var/log/nginx/wttr.in-access.log main;
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error_log /var/log/nginx/wttr.in-error.log;
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location / {
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proxy_pass http://127.0.0.1:8002;
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proxy_set_header Host $host;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_set_header X-Forwarded-For $remote_addr;
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client_max_body_size 10m;
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client_body_buffer_size 128k;
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proxy_connect_timeout 90;
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proxy_send_timeout 90;
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proxy_read_timeout 90;
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proxy_buffer_size 4k;
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proxy_buffers 4 32k;
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proxy_busy_buffers_size 64k;
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proxy_temp_file_write_size 64k;
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expires off;
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}
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}
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