[gdal-dev] Minimal requirements of a service for reader driver OGC API - Features?

[Stefan Keller]

Even,

I seems that ogrinfo "insists" that the /api path exists, since it
throws an error 404 as reported above.
So we had to implement a dummy /api in our minimal server
implementation which returns "OK" to ogrinfo in order to bypass those
404 errors from ogrinfo.

I quickly skimmed the ogrinfo code [1] ff. and assumes that it lacks a
catch for this 404 error.
Should I create an issue?

:Stefan

[1] https://github.com/OSGeo/gdal/blob/master/gdal/ogr/ogrsf_frmts/wfs/ogroapifdriver.cpp#L509
ff.

Am Di., 3. Dez. 2019 um 21:25 Uhr schrieb Stefan Keller <sfkeller at gmail.com>:
>
> Hi Even
>
> Awesome, thanks! Tu es le meilleur.
>
> :Stefan
>
> Am Di., 3. Dez. 2019 um 17:45 Uhr schrieb Even Rouault
> <even.rouault at spatialys.com>:
> >
> > On mardi 3 décembre 2019 17:25:20 CET Stefan Keller wrote:
> > > Hi,
> > > We're implementing a minimal server of an "OGC API - Features" service
> > > and test it with a reader driver of "OGC API - Features" [1] (ogrinfo,
> > > ogr2ogr, QGIS). We're getting ERROR 404 with "ogrinfo
> > > WFS3:127.0.0.1:8000 <ourlayer>" [2] obviously because some discovery
> > > paths are not implemented at server side.
> > >
> > > Now, my question is: What are the endpoints really required by the OGR
> > > reader driver? /api ?
> >
> > Source is there:
> > https://github.com/OSGeo/gdal/blob/master/gdal/ogr/ogrsf_frmts/wfs/ogroapifdriver.cpp
> >
> > Master implements the final spec:
> > http://docs.opengeospatial.org/is/17-069r3/17-069r3.html
> > (there have been changes w.r.t earlier drafts)
> >
> > From my memories, the OGR driver needs:
> > - Landing page: required
> > - /collections: required
> > - /collections/{collectioname}/items: required
> > - /api (actually link provided in Landing page): optional
> > - /conformance: not used
> >
> > You can enable --config CPL_DEBUG ON --config CPL_CURL_VERBOSE YES
> > to see which network requests are attempted (some may be attempted and if
> > the server doesn't implement them, execution can continue
> >
> > --
> > Spatialys - Geospatial professional services
> > http://www.spatialys.com