Start by downloading the "fire hydrant data" as a shape file from the City of Vancouver open data site.
Load the data into your PostgreSQL/PostGIS database using shp2pgsql:
shp2pgsql -s 26910 -D -I water-hydrants.shp hydrants | psql postgisftw
Create the public.hydrants_delaunay()
function in your database by loading the openlayer-function-click.sql file.
Restart your pg_tileserv
or at least reload the front page to force a refresh of the catalogue information.
Load the openlayer-function-click.html file in your browser.