[Qgis-user] QGIS Server: Parsing WFS capabilites with JavaScript

Tue Nov 7 23:26:14 PST 2023

Meanwhile this npm package also supports WFS 1.0.0 and WFS 1.1.0

https://github.com/GastonZalba/ol-wfs-capabilities

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Jakob Miksch
Consultant

+49 170 9036956
siticom.online

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Von: QGIS-User <qgis-user-bounces at lists.osgeo.org> im Auftrag von Jakob Miksch via QGIS-User <qgis-user at lists.osgeo.org>
Gesendet: Tuesday, October 31, 2023 12:07:09 PM
An: Aguilar Bolivar, Rosa (UT-ITC) <r.aguilar at utwente.nl>; Jorge Gustavo Rocha <jgr at geomaster.pt>; qgis-user at lists.osgeo.org <qgis-user at lists.osgeo.org>
Betreff: Re: [Qgis-user] QGIS Server: Parsing WFS capabilites with JavaScript

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Thanks for the hints. I will try those!

Jakob Miksch
Consultant

+49 170 9036956
siticom.online

From: QGIS-User <qgis-user-bounces at lists.osgeo.org> On Behalf Of Aguilar Bolivar, Rosa (UT-ITC) via QGIS-User
Sent: Tuesday, October 31, 2023 6:16 AM
To: Jorge Gustavo Rocha <jgr at geomaster.pt>; qgis-user at lists.osgeo.org
Subject: Re: [Qgis-user] QGIS Server: Parsing WFS capabilites with JavaScript

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Hi,

I have used a simple DOMParser

    const xmlParser = new DOMParser();

    const xmlText = xmlParser.parseFromString(XmlCapText, 'text/xml');

Cheers,

Rosa

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Dr. Rosa Aguilar

University of Twente

Faculty of Geoinformation Science and Earth Observation

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https://rosaguilar.github.io<https://rosaguilar.github.io/>

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From: QGIS-User <qgis-user-bounces at lists.osgeo.org<mailto:qgis-user-bounces at lists.osgeo.org>> On Behalf Of Jorge Gustavo Rocha via QGIS-User
Sent: Monday, October 30, 2023 8:36 PM
To: qgis-user at lists.osgeo.org<mailto:qgis-user at lists.osgeo.org>
Subject: Re: [Qgis-user] QGIS Server: Parsing WFS capabilites with JavaScript

Hi Jakob,

You can try jsonix. I use something like:

var Jsonix = require('jsonix').Jsonix;
var XLink_1_0 = require('w3c-schemas').XLink_1_0;
var OWS_1_0_0 = require('ogc-schemas').OWS_1_0_0;
var OWS_1_1_0 = require('ogc-schemas').OWS_1_1_0;
var WFS_1_0_0 = require('ogc-schemas').WFS_1_0_0;
var WFS_1_1_0 = require('ogc-schemas').WFS_1_1_0;
var WFS_2_0 = require('ogc-schemas').WFS_2_0;
var Filter_1_0_0 = require('ogc-schemas').Filter_1_0_0;
var Filter_1_1_0 = require('ogc-schemas').Filter_1_1_0;
var Filter_2_0 = require('ogc-schemas').Filter_2_0;
var GML_1_0_0 = require('ogc-schemas').GML_1_0_0;
var GML_2_1_2 = require('ogc-schemas').GML_2_1_2;
var GML_3_1_1 = require('ogc-schemas').GML_3_1_1;
var GML_3_2_0 = require('ogc-schemas').GML_3_2_0;
var GML_3_2_1 = require('ogc-schemas').GML_3_2_1;
var SMIL_2_0 = require('ogc-schemas').SMIL_2_0;
var SMIL_2_0_Language = require('ogc-schemas').SMIL_2_0_Language;
var CSW_2_0_2 = require('ogc-schemas').CSW_2_0_2;
var DC_1_1 = require('ogc-schemas').DC_1_1;
var DCT = require('ogc-schemas').DCT;
var XMLSchema = require('./mappings/XMLSchema').XMLSchema;

var context = new Jsonix.Context([
  XLink_1_0,
  OWS_1_0_0,
  OWS_1_1_0,
  WFS_1_0_0,
  WFS_1_1_0,
  WFS_2_0,
  Filter_1_0_0,
  Filter_1_1_0,
  Filter_2_0,
  GML_1_0_0,
  GML_2_1_2,
  GML_3_1_1,
  GML_3_2_0,
  GML_3_2_1,
  SMIL_2_0,
  SMIL_2_0_Language,
  CSW_2_0_2,
  DC_1_1,
  DCT,
  XMLSchema
]);
var unmarshaller = context.createUnmarshaller();

Later, you can transform WFS response to JSON, like:

    const response = responseBuffer.toString('utf8');
    var result = unmarshaller.unmarshalString(response);

Not so easy, but it works.

Regards,

Jorge Gustavo

On 30/10/23 14:11, Jakob Miksch via QGIS-User wrote:

Dear QGIS Server people,

I have a QGIS Server running. I would like to access the WFS Capabilities with JavaScript, more specifically I would like to know which WFS layers are published by QGIS Server. Unfortunately, QGIS Server only supports WFS 1.0.0 and 1.1.0. But the only parser for WFS capabilities I have found only support WFS 2.0.0 ( https://github.com/GastonZalba/ol-wfs-capabilities ).

Does anyone have a hint how to parse the WFS Capabilities from QGIS Server with JavaScript?

best regards,
Jakob

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Jakob Miksch
Consultant

+49 170 9036956
siticom.online

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