Using 'rvest' to extract links

r web-scraping yelp rvest
Allen picture Allen · Feb 6, 2016 · Viewed 21.2k times · Source

I am trying to scrape data from Yelp. One step is to extract links from each restaurant. For example, I search restaurants in NYC and get some results. Then I want to extract the links of all the 10 restaurants Yelp recommends on page 1. Here is what I have tried:

library(rvest)     
page=read_html("http://www.yelp.com/search?find_loc=New+York,+NY,+USA")
page %>% html_nodes(".biz-name span") %>% html_attr('href')

But the code always returns 'NA'. Can anyone help me with that? Thanks!

Answer

Bharath picture Bharath · Feb 6, 2016 
library(rvest)     
page <- read_html("http://www.yelp.com/search?find_loc=New+York,+NY,+USA")
page %>% html_nodes(".biz-name") %>% html_attr('href')

Hope this would simplify your problem

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