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#' Details of a retailer
#'
#' @param retailer_id A retailer ID.
#'
#' @return Details of either all retailers or a specific retailer as a \code{data.frame}.
#' @export
#'
#' @examples
#' # Get a table of all retailers.
#' \dontrun{
#' retailer()
#' }
#' # Get details of specific retailer.
#' \dontrun{
#' retailer(1)
#' }
retailer <- function(retailer_id = NA) {
if (is.na(retailer_id)) {
url <- paste0(base_url(), "retailer")
response <- GET(url)
} else {
check_retailer_id(retailer_id)
url <- paste0(base_url(), "retailer/%d") %>%
sprintf(retailer_id)
response <- GET(url)
}
check_response_error(response)
check_response_json(response)
response %>%
content(as = "text", encoding = "UTF-8") %>%
fromJSON() %>%
as_tibble() %>%
rename(retailer_id = id, retailer_url = url)
}
#' Products for a specific retailer
#'
#' @param retailer_id A retailer ID.
#' @param product Filter by product name (treated as a regular expression).
#' @param brand Filter by product brand (treated as a regular expression).
#' @param regex Should filter be treated as a Regular Expression?
#' @param ignore_case Should case be ignore?
#' @param head Return the data (\code{FALSE}) or the number of records (\code{TRUE})?
#' @param ... Arguments passed through to \code{paginate()}.
#'
#' @return Product details as a \code{data.frame} if \code{head} is \code{FALSE}, otherwise the number of products that would be returned.
#' @export
#'
#' @examples
#' # Get products for a specific retailer.
#' \dontrun{
#' retailer_products(1)
#' retailer_products(9, product = "Nescafe")
#' retailer_products(9, product = "Nescafe", head = TRUE)
#' }
retailer_products <- function(retailer_id, product = NA, brand = NA, regex = TRUE, ignore_case = TRUE, head = FALSE, ...) {
check_retailer_id(retailer_id)
url <- paste0(base_url(), "retailer/%d/product") %>%
sprintf(retailer_id)
if (!is.na(product)) {
url <- param_set(url, key = "product", value = URLencode(product))
}
if (!is.na(brand)) {
url <- param_set(url, key = "brand", value = URLencode(brand))
}
url <- param_set(url, key = "regex", value = param_boolean(regex))
url <- param_set(url, key = "ignore_case", value = param_boolean(ignore_case))
with_progress(products <- paginate(url, head, ...))
if (!head) {
if (nrow(products)) {
products %>%
rename(product_id = id) %>%
select(product_id, product, brand, model, sku)
} else {
message("No products are currently available for this retailer.")
tibble(
product_id = integer(),
product = character(),
brand = character(),
model = character(),
sku = character()
)
}
} else {
message(paste0(products, " products will be returned."))
products
}
}
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