sparql {uklr}

Tools to create a custom SPARQL query

Description

Function to create custom queries with the '/landregistry/query endpoint'. All necessary prefixes have to be included and output will be parsed from json to dataframe. The most prefixes from land registry can be include with prefix_query.

Usage

sparql(
  query,
  endpoint = "http://landregistry.data.gov.uk/landregistry/query",
  ...
)

prefix_query(query)

Arguments

query

custom query.

endpoint

land registry's web service endpoint.

...

further arguments passed to httr::GET.

Value

Returns a tibble that has been parsed from json.

Examples

custom_query <- "select * where {
  <http://landregistry.data.gov.uk/data/ukhpi/region/newport/month/2013-10> ?property ?value
}"
sparql(prefix_query(custom_query))