Requests to various WFS API.
Value
wfs_api (S3) object with the following attributes:
- content
XML payload.
- path
path provided to get the resonse.
- response
the original response object.
Details
Make a request to the spesific WFS API. The base url is http://geo.stat.fi/geoserver/wfs to which other components defined by the arguments are appended.
This is a low-level function intended to be used by other higher level functions in the package.
Note that GET requests are used using httpcache meaning that requests
are cached. If you want clear cache, use httpcache::clearCache(). To turn
the cache off completely, use httpcache::cacheOff()
Author
Joona Lehtomäki joona.lehtomaki@iki.fi
Examples
wfs_api(base_url = "http://geo.stat.fi/geoserver/wfs",
queries = append(list("service" = "WFS", "version" = "1.0.0"),
list(request = "getFeature",
layer = "tilastointialueet:kunta4500k_2017")))
#> Requesting response from: http://geo.stat.fi/geoserver/wfs?service=WFS&version=1.0.0&request=getFeature&layer=tilastointialueet%3Akunta4500k_2017
#> $url
#> [1] "http://geo.stat.fi/geoserver/wfs?service=WFS&version=1.0.0&request=getFeature&layer=tilastointialueet%3Akunta4500k_2017"
#>
#> $response
#> Response [http://geo.stat.fi/geoserver/wfs?service=WFS&version=1.0.0&request=getFeature&layer=tilastointialueet%3Akunta4500k_2017]
#> Date: 2024-03-13 16:24
#> Status: 200
#> Content-Type: text/xml;charset=UTF-8
#> Size: 450 B
#> <?xml version="1.0" ?>
#> <ServiceExceptionReport
#> version="1.2.0"
#> xmlns="http://www.opengis.net/ogc"
#> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
#> xsi:schemaLocation="http://www.opengis.net/ogc http://schemas.opengis.net/...
#> <ServiceException code="MissingParameterValue">
#> The query should specify either typeName, featureId filter, or a stored...
#>
#> $content
#> {xml_document}
#> <ServiceExceptionReport version="1.2.0" schemaLocation="http://www.opengis.net/ogc http://schemas.opengis.net/wfs/1.0.0/OGC-exception.xsd" xmlns="http://www.opengis.net/ogc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
#> [1] <ServiceException code="MissingParameterValue">\n The query should s ...
#>
#> attr(,"class")
#> [1] "wfs_api"