topic Weather Data in App Development

Weather Data

Clark_White — Sat, 16 Nov 2024 18:53:12 GMT

I would like to create an app that displays Weather data via a map along with Operational Metrics. Is there a free datafeed or WebConnection that I can use for this?

Re: Weather Data

lorenzoconforti — Wed, 25 Mar 2020 15:37:00 GMT

https://openweathermap.org/api

Re: Weather Data

Clark_White — Fri, 27 Mar 2020 02:17:12 GMT

Thanks for the response, I keep getting a "Failed to Connect to Server" message with the Rest Connector. Do you know the specific settings we need to use with the OpenWeather API? I am fairly new to Qlik.

Re: Weather Data

lorenzoconforti — Fri, 27 Mar 2020 14:37:36 GMT

You don't need a specific connector, you can just use the Web file connection. I've created a dashboard to illustrate this; see attached

You will need to

1. create an account on openweathermap.org; you will be given an API key

2. create a new connection in the Data load editor; select "Web file" (URL "https://samples.openweathermap.org/data/2.5/forecast", name "WeatherData")

3. in the data load editor, edit the variable vAPIKey and replace <YourAPIKey> with the API key at step 1

4. reload

The loading script will go through the list of cities included in the locations table and query openweathermap and retrieve the forecast information; I've added some extra information in the sample stats table which are displayed in the tooltip on the map (you need sense february 2020 for this to work)

Study the file and then let me know if you have any questions

Re: Weather Data

Clark_White — Fri, 27 Mar 2020 15:28:04 GMT

Thanks. The app looks good!

I get the SSL/TSL handshake failed. Certificates and/or passwords are invalid.

From my research, it looks like I need to Create a SSL Certificate for the Web Connectors. Is this correct?

Re: Weather Data

lorenzoconforti — Fri, 27 Mar 2020 17:09:01 GMT

Does it give you error when you create the new connection or when you run the script?

I just tried and it also works with http so you can probably just edit the two URLs in the loading script

Re: Weather Data

Clark_White — Fri, 27 Mar 2020 17:32:25 GMT

It still fails. I get an unknown error when I try http.

Re: Weather Data

lorenzoconforti — Fri, 27 Mar 2020 17:37:17 GMT

Does this happen in 1 or 2:

1 - when you create the connection (i.e. Data model viewer -> Create new connection -> Data sources -> web file -> URL "https://samples.openweathermap.org/data/2.5/forecast", name "WeatherData"

2 - when you press the Load data button

Re: Weather Data

lorenzoconforti — Fri, 27 Mar 2020 17:37:37 GMT

Also, please post a screenshot of the error message

Re: Weather Data

Clark_White — Fri, 27 Mar 2020 17:49:12 GMT

This is what I get from the New Connection Screen.

Re: Weather Data

Clark_White — Fri, 27 Mar 2020 17:50:51 GMT

I get this from the Load Editor.

Re: Weather Data

lorenzoconforti — Fri, 27 Mar 2020 18:28:03 GMT

Your new connection screen looks slightly different from mine. Are you using Qlik Sense Desktop Feb 2020?

Try this URL:

https://samples.openweathermap.org/data/2.5/weather?q=London,uk&appid=b6907d289e10d714a6e88b30761fae22

Re: Weather Data

Clark_White — Fri, 27 Mar 2020 18:53:31 GMT

Actually Still using June 2019.

Re: Weather Data

lorenzoconforti — Fri, 27 Mar 2020 19:03:52 GMT

Maybe update it first. I've used some new features in the map visualisation that wouldn't work on your version

Re: Weather Data

bschaefer — Tue, 11 Aug 2020 12:14:19 GMT

hi - if you are looking for a REST service to integrate as datasource you can use the free tier of Visual Crossing as well :

https://www.visualcrossing.com/weather/weather-data-services#/login

there is a tutorial on the web site as well how to set it up : https://www.visualcrossing.com/resources/category/documentation/

feel free to get in touch if you get stuck -

Bjoern

Re: Weather Data

julianjmuir — Wed, 12 Apr 2023 12:55:28 GMT

Creating a weather app is a great idea! If you're looking for a free data feed or web connection, check out the National Weather Service API. It offers free access to a variety of weather data and is great options to consider. As for converting Fahrenheit to Celsius, you can use a simple formula to alter the temperature or even include a toggle button in the app so users can switch between Fahrenheit and Celsius. I have been using World Weather for a long time, as it is convenient, and you might be interested in checking it out. Good luck with your app development!