Set id to feature

[korywka]

Is there a way to set id to feature (last param of ST_AsMVT function)?

id from table is not passed to feature id.

Or int value:

[AdriSolid]

Hi! You can do it in your frontend as well (Mapbox GL JS). Call your id (int or string) on the function source and then:

map.addSource('counties', {
  "type": "vector",
  "url" || "tiles": "your url / tiles",
  "promoteId": "your id"
});

[korywka]

@AdriSolid For now I do it with custom function and ST_AsMVT (https://postgis.net/docs/ST_AsMVT.html) takes last param as feature_id_name, but your advice is very helpful too. Thanks! Will leave doc link here for the community: https://docs.mapbox.com/mapbox-gl-js/style-spec/sources/#vector-promoteId

[shaunakv1]

great idea @AdriSolid but that is a very Mapbox GL specific feature. I do, think this feature is very valuable to have in API itself that way it's available agnostic of which client is being used to render the tiles.

[nyurik]

This is partially already implemented, and will be cleaned up and fixed in #380