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Fix read_html_live example #426

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Fix read_html_live example #426

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425088e
Fix read_html_live example
jrosell Oct 17, 2024
b95e605
Change to %>% pipe
jrosell Oct 17, 2024
4b6da44
I assume Reject All would be better
jrosell Oct 17, 2024
4698b8c
Fix scroll
jrosell Oct 17, 2024
738875a
Fixed not finding css element when rejecting cookies
jrosell Oct 17, 2024
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21 changes: 16 additions & 5 deletions R/live.R
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Original file line number Diff line number Diff line change
Expand Up @@ -27,16 +27,27 @@
#' # When we retrieve the raw HTML for this site, it doesn't contain the
#' # data we're interested in:
#' static <- read_html("https://www.forbes.com/top-colleges/")
#' static %>% html_elements(".TopColleges2023_tableRow__BYOSU")
#' static %>% html_elements(".ListTable_listTable__-N5U5")
#'
#' # Instead, we need to run the site in a real web browser, causing it to
#' # download a JSON file and then dynamically generate the html:
#'
#' sess <- read_html_live("https://www.forbes.com/top-colleges/")
#' sess$view()
#' rows <- sess %>% html_elements(".TopColleges2023_tableRow__BYOSU")
#' rows %>% html_element(".TopColleges2023_organizationName__J1lEV") %>% html_text()
#' rows %>% html_element(".grant-aid") %>% html_text()
#' Sys.sleep(2)
#' cookies_seen <- length(html_elements(sess, "button[aria-label='Reject All']"))
#' if (cookies_seen) {
#' sess$click("button[aria-label='Reject All']")
#' sess <- read_html_live("https://www.forbes.com/top-colleges/")
#' sess$view()
#' Sys.sleep(2)
#' }
#' table_seen <- length(html_elements(sess, "table"))
#' if (table_seen) {
#' rows <- sess |> html_elements("table tr")
#' rows |>
#' html_elements("td:nth-of-type(2)") |>
#' html_text() |>
#' print()
#' }
read_html_live <- function(url) {
check_installed(c("chromote", "R6"))
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