[mapserver-users] server geojson data as input to map file

[Robert Sanson]

Hi Jeff and others

I have been using a Python cgi-bin service that returns a GeoJSON spatial feature:

LAYER
  NAME farm
  TYPE POLYGON
  STATUS ON
  CONNECTIONTYPE OGR
  CONNECTION "http://myserver/cgi-bin/farmgjson.py?farmid=%farmid%"
  VALIDATION
   'farmid'         '^[A-Z]{2}[0-9]{5}$'
  END
…

Kind regards

Robert Sanson

From: mapserver-users <mapserver-users-bounces at lists.osgeo.org> On Behalf Of Thomas Gratier
Sent: Thursday, 17 June 2021 3:52 am
To: Jeff McKenna <jmckenna at gatewaygeomatics.com>
Cc: MapserverList OSGEO <mapserver-users at lists.osgeo.org>
Subject: Re: [mapserver-users] server geojson data as input to map file

Hi Jeff,

Could be wrong but your exemple use a static GeoJSON file whereas flask datasource would more probably be http://urlflaskserver/my_end_point/layername.geojson

So

CONNECTIONTYPE OGR

CONNECTION "name.json"

DATA "layername"
would be

CONNECTIONTYPE OGR

CONNECTION "/vsicurl/http://urlflaskserver/my_end_point/layername.geojson"

DATA "layername"
FYI, above untested but considering it may work because it could inherit from GDAL/OGR behaviour like below and already mentioned for other datasources e.g https://mapserver.org/input/virtual-file.html#configure-mapserver-layer

Be aware that remote consumption a least on ogrinfo need an url ending like it's a file e.g
# Working because geojson extension in the url (so GDAL can guess it's a GeoJSON)
ogrinfo -so https://raw.githubusercontent.com/nvkelso/natural-earth-vector/master/geojson/ne_10m_airports.geojson

# Not working whereas it's a GeoJSON https://ahocevar.com/geoserver/wfs?request=GetFeature&service=WFS&version=1.1.0&outputFormat=application/json&typenames=usa:states
ogrinfo -so /vsicurl/https://ahocevar.com/geoserver/wfs?request=GetFeature&service=WFS&version=1.1.0&outputFormat=application/json&typenames=usa:states

Regards

Thomas Gratier

Le mer. 16 juin 2021 à 16:24, Jeff McKenna <jmckenna at gatewaygeomatics.com<mailto:jmckenna at gatewaygeomatics.com>> a écrit :
Hi Ahmet, yes in fact I recently worked on those documentation steps:
https://mapserver.org/input/vector/geojson.html

Please let me know if that page needs any enhancements.

-jeff



--
Jeff McKenna
GatewayGeo: Developers of MS4W, MapServer Consulting and Training
co-founder of FOSS4G
http://gatewaygeo.com/




On 2021-06-16 11:20 a.m., Ahmet Temiz wrote:
> Hi,
> My server(flask) publishes data as geojson.
> Can I get this data to mymapfile's Data as online?
>
> regards
>
>
> --
> Ahmet Temiz
> Jeoloji Müh.
> Afet ve Acil Durum Yönetimi Başkanlığı
> Deprem  Dairesi Başkanlığı
>
>
> ________________________
>
> Ahmet Temiz
> Geological Eng.
>
> Disaster and Emergency Management
> of Presidency
>
> _______________________________________________
> mapserver-users mailing list
> mapserver-users at lists.osgeo.org<mailto:mapserver-users at lists.osgeo.org>
> https://lists.osgeo.org/mailman/listinfo/mapserver-users
>

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