[postgis-users] PG Feat Serv and OGC API

[Rory Meyer]

Afternoon all,

I've got a PG Featureserv docker container running on a server and a couple of collections and functions published on it. The data that I'm querying is better suited for functions. It's mostly time series stuff and it's nice to give it a start/stop time and a couple other filter parameters. 

I'm looking at OWSlib to build a python client that consumes off the server but it doesn't seem like the "functions" are recognised in OGC; "myserver.org/collections/my_data" is easily called in OWSlib with:

```

from owslib.ogcapi.features import Features
api = Features('http://myserver.org/')

```

but there doesn't seem to be a "myserver.org/functions/my_func" equivalent. 

Am I missing it? Is the best way to do function queries just to build up the URL in python and do a simple request? 

Regards,

Rory

[Martin Davis]

The functions endpoint in pg_featureserv is non-standard, so it's not surprising that client libraries don't support it.   So you will have to manually build a URL for the request.

pg_featureserv now has CQL filtering: https://github.com/CrunchyData/pg_featureserv/blob/master/hugo/content/usage/cql.md

This includes temporal filter support.  If you can build the latest code, you might want to look at this as an alternative to functions.  It saves writing and deploying functions, and it is much more flexible.

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