R language code example

Below is a downloader program using R language and httrOAuth library for downloading content. The program uses the following code.

# Install and load the necessary libraries 
install.packages("httr") 
install.packages("httrOAuth") 
library(httr) 
library(httrOAuth) 
​#
Set 
http_proxy <- "duoip/get_proxy" 
​#
Get the HTML content of the website 
html <- GET("", 
                  httr::set_proxy(http_proxy)) 
​#
Save HTML content as file 
savet_html <- file("html", 
                          open = "w", 
                          append = FALSE) 
cat(t_html, file = save__html)

This program first installs and loads the httr and httrOAuth libraries, then sets up the server. Next, use the GET function to get the HTML content of the website and set up the server. Finally, save the obtained HTML content as a file named html.

Before running the program, make sure the network environment allows access.