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#' Retrieve Nodes from Relationships or Paths
#'
#' Retrieve the end node from a relationship or path object.
#'
#' @param object A relationship or path object.
#'
#' @return A node object.
#'
#' @examples
#' \dontrun{
#' graph = startGraph("http://localhost:7474/db/data/")
#' clear(graph)
#'
#' alice = createNode(graph, "Person", name = "Alice")
#' bob = createNode(graph, "Person", name = "Bob")
#'
#' rel = createRel(alice, "WORKS_WITH", bob)
#'
#' endNode(rel)
#'
#' query = "
#' MATCH p = (a:Person)-[:WORKS_WITH]->(b:Person)
#' WHERE a.name = 'Alice' AND b.name = 'Bob'
#' RETURN p
#' "
#'
#' path = cypherToList(graph, query)[[1]]$p
#'
#' endNode(path)
#' }
#'
#' @seealso \code{\link{startNode}}
#'
#' @export
endNode = function(object) UseMethod("endNode")
#' @export
endNode.relationship = function(object) {
url = attr(object, "end")
result = http_request(url, "GET")
node = configure_result(result)
return(node)
}
#' @export
endNode.path = function(object) {
url = attr(object, "end")
result = http_request(url, "GET")
node = configure_result(result)
return(node)
}
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