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#' @title SCOPUS Author Retrieval
#'
#' @description This function wraps \code{\link{generic_elsevier_api}}
#' to give a
#' retrieval of an author from the Elsevier Author Retrieval API
#' @param id Identifier for author
#' @param identifier Type of identifier to use
#' @param http_end any additional end to http statement.
#' See \code{\link{generic_elsevier_api}}
#'
#' @param ... Arguments to be passed to
#' \code{\link{generic_elsevier_api}}
#' @note See
#' \url{https://api.elsevier.com/documentation/AuthorRetrievalAPI.wadl}
#' for documentation
#' @seealso \code{\link{generic_elsevier_api}}
#' @return List of elements, similar to
#' \code{\link{generic_elsevier_api}}
#' @examples
#' api_key = get_api_key(NULL, error = FALSE)
#' if (!is.null(api_key)){
#' x = author_retrieval(au_id = "40462056100",
#' verbose = FALSE)
#' x = author_retrieval_id("40462056100", identifier = "author_id",
#' verbose = FALSE)
#' } else {
#' x = author_retrieval_id(
#' "40462056100",
#' identifier = "author_id",
#' api_key_error = FALSE, verbose = FALSE)
#' x = author_retrieval(
#' au_id = "40462056100",
#' api_key_error = FALSE, verbose = FALSE)
#' }
#' @rdname author_retrieval
#' @export
author_retrieval_id <- function(
id,
identifier = c("author_id", "eid"),
http_end = NULL,
...
){
identifier = match.arg(identifier)
id = gsub("AUTHOR_ID:", "", id, fixed = TRUE)
ender = paste0("/", paste(identifier, id, sep = "/"))
if (!is.null(http_end)) {
ender = paste(ender, http_end, sep = "/")
}
s = generic_elsevier_api(
type = "author",
http_end = ender, ...)
return(s)
}
#' @rdname author_retrieval
#' @export
multi_author_retrieval <- function(
id,
identifier = c("author_id", "eid"),
http_end = NULL,
...
){
id = gsub("AUTHOR_ID:", "", id, fixed = TRUE)
id = paste(id, collapse = ",")
s = generic_elsevier_api(
type = "author",
http_end = http_end, ...)
return(s)
}
#' @rdname author_retrieval
#' @param view Which view to see. See
#' \url{https://api.elsevier.com/documentation/AuthorRetrievalAPI.wadl}
#' @param self_cite Should self-citations be included?
#' @param au_id Author ID number. Overrides any first/last name argument
#' @param last_name last name of author
#' @param first_name first name of author
#' @param api_key Elsevier API key
#' @param verbose Print diagnostic messages
#' @param headers Headers passed to \code{\link{add_headers}},
#' passed to \code{\link{GET}}
#'
#' @export
author_retrieval <- function(
au_id = NULL,
last_name = NULL,
first_name = NULL,
view = c("LIGHT", "STANDARD",
"ENHANCED", "METRICS", "ENTITLED"),
self_cite = c("include", "exclude"),
http_end = NULL,
verbose = TRUE,
api_key = NULL,
headers = NULL,
...
){
view = match.arg(view)
self_cite = match.arg(self_cite)
L = process_author_name(
au_id = au_id,
first_name = first_name,
last_name = last_name,
api_key = api_key,
verbose = verbose,
headers = headers)
first_name = L$first_name
last_name = L$last_name
au_id = L$au_id
s = author_retrieval_id(
id = au_id,
identifier = "author_id",
http_end = http_end,
api_key = api_key,
view = view,
`self-citation` = self_cite,
verbose = verbose,
headers = headers,
...)
return(s)
}
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