Update de dependências e higiene do pacote.

r-package/DESCRIPTION

@@ -1,7 +1,7 @@
 Package: basedosdados
 Title: 'Base Dos Dados' R Client
-Version: 0.2.3
-Authors@R:
+Version: 0.2.4
+Authors@R: 
     c(person(given = "Pedro",
              family = "Cavalcante",
              role = c("aut", "cre"),
@@ -20,8 +20,8 @@ Description: An R interface to the 'Base dos Dados' API <https://basedosdados.or
 License: MIT + file LICENSE
 Encoding: UTF-8
 Roxygen: list(markdown = TRUE)
-RoxygenNote: 7.2.3
-Imports:
+RoxygenNote: 7.3.2
+Imports: 
     purrr (>= 0.3.4),
     dplyr (>= 1.0.6),
     tibble (>= 3.1.1),
@@ -39,7 +39,6 @@ Imports:
     dbplyr (>= 2.1.1),
     scales (>= 1.1.1),
     DBI (>= 1.1.1),
-    typed (>= 0.0.1),
     methods
 Suggests:
     rmarkdown,

r-package/NAMESPACE

@@ -3,6 +3,7 @@
 S3method(dbplyr_edition,BaseDosDadosConnection)
 export("%>%")
 export(bd_collect)
+export(bd_request)
 export(bd_write)
 export(bd_write_csv)
 export(bd_write_rds)
@@ -51,7 +52,4 @@ importFrom(scales,number_bytes)
 importFrom(stringr,str_count)
 importFrom(stringr,str_detect)
 importFrom(stringr,str_replace_all)
-importFrom(typed,"?")
-importFrom(typed,check_arg)
-importFrom(typed,check_output)
 importFrom(writexl,write_xlsx)

r-package/R/bdplyr.R

@@ -422,9 +422,9 @@ bd_collect <- function(
 
 bd_write <- function(
   .lazy_tbl,
-  .write_fn = ? typed::Function(),
-  path = ? typed::Character(length = 1),
-  overwrite = FALSE ? typed::Logical(1),
+  .write_fn,
+  path,
+  overwrite = FALSE,
   ...) {
 
   # check if the path already exists
@@ -538,8 +538,8 @@ bd_write_rds <- function(
 #' @export
 bd_write_csv <- function(
   .lazy_tbl,
-  path = ? typed::Character(1),
-  overwrite = FALSE ? typed::Logical(1),
+  path,
+  overwrite = FALSE,
   ...) {
 
   # check if the path already exists

r-package/R/http-client.R

@@ -0,0 +1,38 @@
+#' Abstraction of an http request to the API
+#' @param endpoint which endpoint to request.
+#' @param query querystring passed as argument to the GEt request.
+#' @export
+#' @examples
+#' \dontrun{
+#'
+#' bd_request(
+#'  endpoint = "dataset_search",
+#'  query = list(
+#'   resource_type = "bdm_table",
+#'   q = search_term,
+#'   page_size = 100))
+#'
+#' bd_request(
+#'  endpoint = "bdm_dataset_show",
+#'  query = list(
+#'   dataset_id = dataset_id)
+#'
+#'}
+#'@return A httr::response() object.
+
+
+bd_request <- function(
+  endpoint,
+  query = list()) {
+
+  base_url <- "https://basedosdados.org/api/3/action/bd_"
+  target_endpoint <- paste0(base_url, endpoint)
+
+  httr::GET(
+    target_endpoint,
+    encode = 'json',
+    query = query) %>%
+    httr::content() %>%
+    purrr::pluck("result")
+
+}

r-package/R/metadata.R

@@ -30,6 +30,15 @@ dataset_search <- function(search_term) {
       page_size = 100)) ->
     search
 
+  if (is.null(search) || is.null(search$datasets) || length(search$datasets) == 0) {
+    return(tibble::tibble(
+      dataset_name = character(0),
+      dataset_tables = list(),
+      url = character(0),
+      title = character(0)
+    ))
+  }
+
   tibble::tibble(
     dataset_name = purrr::map_chr(
       .x = search$datasets,
@@ -60,7 +69,7 @@ dataset_search <- function(search_term) {
 
 list_dataset_tables <- function(dataset_id) {
 
-    bd_request(
+    basedosdados::bd_request(
       endpoint = "bdm_dataset_show",
       query = list(
         dataset_id = dataset_id)) ->
@@ -80,7 +89,7 @@ list_dataset_tables <- function(dataset_id) {
       purrr::pluck("resources") %>%
       purrr::keep(~ .x$resource_type == "bdm_table") %>%
       purrr::map(fetch_function) %>%
-      purrr::reduce(dplyr::bind_rows)
+      purrr::reduce(dplyr::bind_rows, .init = tibble::tibble(name = character(0), description = character(0)))
 
   }
 
@@ -102,14 +111,23 @@ get_table_columns <- function(
   dataset_id,
   table_id) {
 
-  bd_request(
+  result <- basedosdados::bd_request(
     endpoint = "bdm_table_show",
     query = list(
       table_id = table_id,
-      dataset_id = dataset_id)) %>%
+      dataset_id = dataset_id))
+
+  if (is.null(result) || is.null(result$columns) || length(result$columns) == 0) {
+    return(tibble::tibble(
+      name = character(0),
+      description = character(0)
+    ))
+  }
+
+  result %>%
     purrr::pluck("columns") %>%
     purrr::map(tibble::as_tibble) %>%
-    purrr::reduce(dplyr::bind_rows) %>%
+    purrr::reduce(dplyr::bind_rows, .init = tibble::tibble()) %>%
     dplyr::select(- c(.data$is_in_staging, .data$is_partition))
 
   }
@@ -129,17 +147,25 @@ get_table_columns <- function(
 
 get_dataset_description <- function(dataset_id) {
 
-  bd_request(
+  result <- basedosdados::bd_request(
     endpoint = "bdm_dataset_show",
     query = list(
-      dataset_id = dataset_id)) ->
-    result
+      dataset_id = dataset_id))
+
+  if (is.null(result)) {
+    return(tibble::tibble(
+      name = NA_character_,
+      title = NA_character_,
+      tables = list(tibble::tibble(name = character(0), description = character(0))),
+      notes = NA_character_
+    ))
+  }
 
   tibble::tibble(
-    name = result$name,
-    title = result$title,
+    name = if (is.null(result$name)) NA_character_ else result$name,
+    title = if (is.null(result$title)) NA_character_ else result$title,
     tables = list(list_dataset_tables(dataset_id)),
-    notes = result$notes)
+    notes = if (is.null(result$notes)) NA_character_ else result$notes)
 
 }
 
@@ -156,24 +182,37 @@ get_dataset_description <- function(dataset_id) {
 #'
 
 get_table_description <- function(
-  dataset_id = ? typed::Character(1),
-  table_id = ? typed::Character(1)) {
+  dataset_id,
+  table_id) {
 
-  bd_request(
+  result <- basedosdados::bd_request(
     endpoint = "bdm_table_show",
     query = list(
       dataset_id = dataset_id,
-      table_id = table_id)) ->
-    result
+      table_id = table_id))
+
+  if (is.null(result)) {
+    return(tibble::tibble(
+      dataset_id = dataset_id,
+      table_id = table_id,
+      description = NA_character_,
+      columns = list(tibble::tibble())
+    ))
+  }
+
+  columns_data <- if (is.null(result$columns) || length(result$columns) == 0) {
+    tibble::tibble()
+  } else {
+    result %>%
+      purrr::pluck("columns") %>%
+      purrr::map(tibble::as_tibble) %>%
+      purrr::reduce(dplyr::bind_rows, .init = tibble::tibble())
+  }
 
   tibble::tibble(
     dataset_id = dataset_id,
     table_id = table_id,
-    description = result$description,
-    columns = result %>%
-      purrr::pluck("columns") %>%
-      purrr::map(tibble::as_tibble) %>%
-      purrr::reduce(dplyr::bind_rows) %>%
-      list())
+    description = if (is.null(result$description)) NA_character_ else result$description,
+    columns = list(columns_data))
 
 }