maps_data = tryCatch({
res <- read.csv(system.file("apps/brapi/data/maps.csv", package = "brapiTS"),
stringsAsFactors = FALSE)
}, error = function(e) {
NULL
}
)
maps_list = function(species = "all", type = "all", page = 0, pageSize = 100){
if(is.null(maps_data)) return(NULL)
if(type != "all") {
maps_data = maps_data[stringr::str_detect(maps_data$type, type), ]
if(nrow(maps_data) == 0) return(NULL)
}
if(species != "all") {
maps_data = maps_data[stringr::str_detect(maps_data$species, species), ]
if(nrow(maps_data) == 0) return(NULL)
}
# paging here after filtering
pg = paging(maps_data, page, pageSize)
maps_data <- maps_data[pg$recStart:pg$recEnd, ]
n = nrow(maps_data)
out = list(n)
for(i in 1:n){
out[[i]] <- as.list(maps_data[i, ])
}
attr(out, "pagination") = pg$pagination
out
}
maps = list(
metadata = list(
pagination = list(
pageSize = 30,
currentPage = 0,
totalCount = nrow(maps_data),
totalPages = 1
),
status = list(),
datafiles = list()
),
result = list(data = maps_list())
)
process_maps <- function(req, res, err){
prms <- names(req$params)
species = ifelse('species' %in% prms, req$params$species, "all")
type = ifelse('type' %in% prms, req$params$type, "all")
page = ifelse('page' %in% prms, as.integer(req$params$page), 0)
pageSize = ifelse('pageSize' %in% prms, as.integer(req$params$pageSize), 30)
maps$result$data = maps_list(species, type, page, pageSize)
maps$metadata$pagination = attr(maps$result$data, "pagination")
if(is.null(maps$result$data)){
res$set_status(404)
maps$metadata <- brapi_status(100, "No matching results!")
}
res$set_header("Access-Control-Allow-Methods", "GET")
res$json(maps)
}
mw_maps <<-
collector() %>%
get("/brapi/v1/maps[/]?", function(req, res, err){
process_maps(req, res, err)
}) %>%
put("/brapi/v1/maps[/]?", function(req, res, err){
res$set_status(405)
}) %>%
post("/brapi/v1/maps[/]?", function(req, res, err){
res$set_status(405)
}) %>%
delete("/brapi/v1/maps[/]?", function(req, res, err){
res$set_status(405)
})
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