R: rvest: scraping a dynamic ecommerce page -


i'm using rvest in r scraping. know html , css.

i want prices of every product of uri:

http://www.linio.com.co/tecnologia/celulares-telefonia-gps/

the new items load go down on page (as scrolling).

what i've done far:

linio_celulares <- html("http://www.linio.com.co/celulares-telefonia-gps/")  linio_celulares %>%   html_nodes(".product-itm-price-new") %>%   html_text()

and need, 25 first elements (those load default). 

 [1] "$ 1.999.900" "$ 1.999.900" "$ 1.999.900" "$ 2.299.900" "$ 2.279.900"  [6] "$ 2.279.900" "$ 1.159.900" "$ 1.749.900" "$ 1.879.900" "$ 189.900"   [11] "$ 2.299.900" "$ 2.499.900" "$ 2.499.900" "$ 2.799.000" "$ 529.900"   [16] "$ 2.699.900" "$ 2.149.900" "$ 189.900"   "$ 2.549.900" "$ 1.395.900" [21] "$ 249.900"   "$ 41.900"    "$ 319.900"   "$ 149.900"

question: how elements of dynamic section?

i guess, scroll page until elements loaded , use html(url). seems lot of work (i'm planning of doing on different sections). there should programmatic work around.

any hint welcome!

as @nrussell suggested, can use rselenium programatically scroll down page before getting source code.

you example do:

library(rselenium) library(rvest) #start rselenium checkforserver() startserver() remdr <- remotedriver() remdr$open()  #navigate page remdr$navigate("http://www.linio.com.co/tecnologia/celulares-telefonia-gps/")  #scroll down 5 times, waiting page load @ each time for(i in 1:5){       remdr$executescript(paste("scroll(0,",i*10000,");")) sys.sleep(3)     }  #get page html page_source<-remdr$getpagesource()  #parse html(page_source[[1]]) %>% html_nodes(".product-itm-price-new") %>%   html_text()

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