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I have a Leaflet page, that fetches various GPS tracks and data from a website and filters the resulting GeoJSON files via HTTP GET variables.

If you want to get the data just for one day, I can use this URL:

https://my.service/geojson/tracker1?day=2020-12-18

I need to view some data now as well in QGIS. I can add the layers fine, but when I want to change the date, I have to manually edit the date in every layer.

Is there any possibility to have a textbox, where I can add the date and it will be applied to all GeoJSON layers.

I have looked at the filtering, but if I export all tracker points, it takes ages to load the data.

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  • You might consider providing your data through a standard interface like OGC WFS or OGC API features, – nmtoken Dec 18 '20 at 9:49

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