PRO: Openweather Forecast – search location, show weather

Challenge:
Show current and forecast weather data via
https://api.openweathermap.org/data/2.5/onecall?lat={{lat}}&lon={{lon}}&exclude={part}&appid=….
for a searchable location.

Solution:
Use the above API for the weather at a location defined by lat and lon. Also use the openweather-geocoding API to transform a locationname into lat & lon.

• Register at https://openweathermap.org/api for an API key
• User this URL incl. trhe API key for requests:
  https://api.openweathermap.org/data/3.0/onecall?lat={lat}&lon={lon}&exclude={part}&appid={API key}

---

See how this is done with a JCI-Shortcode:

[jsoncontentimporterpro nameoftemplate="openweather-forecast"]

With this JCI-template:

• urlparam: su
• URL:

{% set su = "augsburg" %}{% if urlparam.su %}{% set su = urlparam.su %}{% endif %}
http://api.openweathermap.org/geo/1.0/direct?q={{su}}&limit=10&appid=...

• twig-template:
  For the weather-forecast each location points at /openweather-forecast/

{% set su = "augsburg" %}{% if urlparam.su %}{% set su = urlparam.su %}{% endif %}
<form action=".">
    <input type=text name=su placeholder="Insert name of a location" value="{{su | e}}">
    <input type=submit value="Search location and weather">
</form>
<hr>
{% for l in _context %}
    {% if l.lat %}
        {{l.name}} ({{l.country}}
        {% if l.state %}
            , {{l.state}}
        {% endif %})
        <a href="https://www.google.com/maps/place//@{{l.lat}},{{l.lon}},14z" target="_blank">show on map</a>
        |
        <a href="/openweather-forecast/?lat={{l.lat}}&lon={{l.lon}}&su={{l.name|e|url_encode}}">show weather</a>
        <br>
    {% endif %}
{% endfor %}