wfs_api {helsinki}

WFS API

Description

Requests to various WFS API.

Usage

wfs_api(base.url = NULL, queries, ...)

Arguments

base.url

WFS url, for example "https://kartta.hsy.fi/geoserver/wfs"

queries

List of query parameters

...

For passing parameters to embedded functions, for example timeout.s (timeout in seconds) in the case of gracefully_fail() internal function

Details

Make a request to the spesific WFS API. The base url is https://kartta.hsy.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.

Value

wfs_api (S3) object with the following attributes:

content

XML payload.

path

path provided to get the resonse.

response

the original response object.

Author(s)

Joona Lehtomäki [e-mail], Kostas Vasilopoulos, Pyry Kantanen

Source

Gracefully failing HTTP request code (slightly adapted by Pyry Kantanen) from RStudio community member kvasilopoulos. Many thanks!

Source of the original RStudio community discussion: https://community.rstudio.com/t/internet-resources-should-fail-gracefully/49199

Examples

## Not run: 
  wfs_api(base.url = "https://kartta.hsy.fi/geoserver/wfs", 
          queries = c("service" = "WFS", 
          "version" = "1.0.0", 
          "request" = "getFeature", 
          "typeName" = "ilmanlaatu:Ilmanlaatu_nyt")
          )

## End(Not run)