Switch to gsearch

[AsgerPetersen]

Dataforsyningen retires geosearch by the end of may 2023 as stated here https://trello.com/c/URyuB8L6/177-opdatering-25012023-geosearch-lukker-31052023-anvend-i-stedet-gsearch.

The new service is called gsearch and is documented here https://docs.dataforsyningen.dk/#gsearch-gsearch. Note that the search endpoint is difficult to find in the docs. I searched the docs for resources to find it. This is and example of a request querying multiple resources in one go:

https://api.dataforsyningen.dk/rest/gsearch/v1.0/search?resources=postnummer,adresse,husnummer&token=XXX&q=jer&limit=10

Tasks:

• Request URL building (resource names changed, filter encoding changed)
• Response handling (objects do not seem to have a type discriminator 🤨)
• Response geometry handling. Was WKT is now geojson (maybe use https://qgis.org/pyqgis/master/core/QgsJsonUtils.html or maybe via https://gist.github.com/sgillies/2217756 which QGIS supports)
• Configuration of updated ressources
• Convert existing configuration values to new config
• Test
• Deploy to plugin repo

[AsgerPetersen]

Now -it seems- the gsearch search endpoint no longer works. It simply disappeared. Instead it seems we need to make individual requests for each resource making the switch way more complicated as it requires an entirely different strategy to request handling and GUI interaction.

Update: I got an answer from Dataforsyningen support. gsearch is not going to support the old functionality from geosearch. From now on we have to use multiple requests against multiple end points to get query results from multiple resources. As written above this is very different from the geosearch functionality and will require substantial code changes to make the plugin work with gsearch.

[AsgerPetersen]

Some issues on gsearch which highlights differences with geosearch:

• https://github.com/SDFIdk/gsearch/issues/180 No single endpoint to search all ressources
• https://github.com/SDFIdk/gsearch/issues/179 Filtering on municipality only for some ressources
• https://github.com/SDFIdk/gsearch/issues/172 Presentation of search results for some ressource lack important context info. Like "Søndergade (4100 Ringsted)" is presented as "Søndergade".

[MieWinstrup]

Pluginet bruger Gsearch fra version 2.0.0 af pluginet. Dette issue lukkes.