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class_2022_10_14.R
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class_2022_10_14.R
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library(tidyverse)
## GoT - Books
jsonlite::read_json("https://www.anapioficeandfire.com/api/books") %>%
length()
jsonlite::read_json("https://www.anapioficeandfire.com/api/books?page=2") %>%
length()
jsonlite::read_json("https://www.anapioficeandfire.com/api/books?pageSize=50") %>%
length()
## GoT - Houses
jsonlite::read_json("https://www.anapioficeandfire.com/api/houses?pageSize=50") %>%
length()
jsonlite::read_json("https://www.anapioficeandfire.com/api/houses?pageSize=500") %>%
length()
page = 1
res = list()
repeat {
has_died_out = TRUE
url = stringr::str_glue(
"https://www.anapioficeandfire.com/api/houses?page={page}&pageSize=50&hasDiedOut={has_died_out}"
)
cat("Getting page", page, "\n")
cur_res = jsonlite::read_json(url)
res = c(res, cur_res)
if (length(cur_res) != 50)
break
page = page + 1
}
tibble(res = res) %>%
unnest_wider(res) %>%
View()
# httr2
library(httr2)
resp = request("https://www.anapioficeandfire.com/api/houses") %>%
req_url_query(
page = 1,
pageSize = 50
) %>%
#req_dry_run()
req_perform()
resp %>%
resp_status()
last_response() %>%
resp_body_json() %>%
tibble(res = .) %>%
unnest_wider(res)
last_response() %>%
resp_header("link")
## aaoif function
aaoif = function(
resource = c("root", "books", "characters", "houses"),
base_url = "https://www.anapioficeandfire.com/api/"
) {
resource = match.arg(resource)
if (resource == "root") resource = ""
url = paste0(base_url, resource)
resp = request(url) %>%
req_url_query(
page = 1,
pageSize = 50
) %>%
req_perform()
stopifnot(resp_status(last_response()) == 200)
res = resp %>% resp_body_json()
n_pages = resp %>%
resp_header("link") %>%
str_match(
"page=(\\d+)&pageSize=50>; rel=\"last\"$"
) %>%
{ .[,2] } %>%
as.numeric()
if (n_pages > 1) {
for (i in 2:n_pages) {
resp = request(url) %>%
req_url_query(
page = i,
pageSize = 50
) %>%
req_perform()
res = c(res, resp %>% resp_body_json())
}
cat("Downloaded page ", i, " / ", n_pages, "\n")
}
res %>%
tibble(res = .) %>%
unnest_wider(res)
}
aaoif("houses")
aaoif("characters")