demo/tripadvisor.R

In rvest: Easily Harvest (Scrape) Web Pages

# Inspired by
# http://notesofdabbler.github.io/201408_hotelReview/scrapeTripAdvisor.html

library(rvest)

url <- "http://www.tripadvisor.com/Hotel_Review-g37209-d1762915-Reviews-JW_Marriott_Indianapolis-Indianapolis_Indiana.html"

reviews <- url |>
  read_html() |>
  html_elements("#REVIEWS .innerBubble")

id <- reviews |>
  html_element(".quote a") |>
  html_attr("id")

quote <- reviews |>
  html_element(".quote span") |>
  html_text()

rating <- reviews |>
  html_element(".rating .rating_s_fill") |>
  html_attr("alt") |>
  gsub(" of 5 stars", "", .) |>
  as.integer()

date <- reviews |>
  html_element(".rating .ratingDate") |>
  html_attr("title") |>
  strptime("%b %d, %Y") |>
  as.POSIXct()

review <- reviews |>
  html_element(".entry .partial_entry") |>
  html_text()

data.frame(id, quote, rating, date, review, stringsAsFactors = FALSE) |> View()