R language data collection: R language data collection proxy IP settings tutorial

First, hand to teach you to use R to engage in data collection for what to set the proxy IP

What's the biggest fear of data collection?IP blockedThe first thing you need to do is to get the data from the target site! Especially when it comes to bulk data crawling, the target site will give you a seal of approval in minutes. For example,🌰, you whimpered and whimpered to write a crawler script, the result is just half an hour to run the IP ban, blood pressure directly pull full right? At this time, the proxy IP is like a spare tire, rotate the use of not easy to be found.

Some brothers may ask: can't you use a free proxy?Great Leakage Special Leakage!Nine out of ten free agents are pits, either slow as a tortoise, or secretly keep a small book. We do serious data collection, or have to use professional service providers, such asipipgoThe residential agents, all of whom are serious carrier resources, are solid to use.

Second, the R language configuration proxy IP tart operation

There are two kinds of situation here: single request with proxy and batch task to change IP automatically. first of all, the simplest one.httr package configuration method, directly stuffing proxy parameters into the request:

library(httr)

 Proxy information from the ipipgo backend
proxy_ip <- "123.123.123.123"
proxy_port <- 8080
proxy_user <- "ipipgo_username"
proxy_pass <- "your_password"

resp <- GET("https://目标网站.com",
            use_proxy(paste0(proxy_ip,":",proxy_port)), authenticate(proxy_user, proxy_port)), authenticate(proxy_user, proxy_port), authenticate(proxy_user)
            authenticate(proxy_user, proxy_pass))

Notice in the code theuse_proxyrespond in singingauthenticateTwo functions, this is the core operation. If you're using the socks5 protocol, remember to replace the use_proxy with theuse_proxy_socks5()The

Third, batch collection must be able to rotate the law

If you're in a long-term collection program, you need to learnAutomatic switching of IP pools. Here to teach you guys to get proxies dynamically using ipipgo's API:

 Install the necessary packages first
if(!require("httr")) install.packages("httr")
if(!require("jsonlite")) install.packages("jsonlite")

 Call the ipipgo API to get the list of proxies
get_proxies <- function(){
  api_url <- "https://api.ipipgo.com/your_endpoint"
  response <- GET(api_url)
  content <- fromJSON(rawToChar(response$content))
  return(content$proxy_list)
}

 Pick a random proxy to use
current_proxy <- sample(get_proxies(),1)

 Remember to replace the authentication information when you use it
resp <- GET("target url", "current_proxy$ip, current_proxy$ip, current_proxy$ip")
            use_proxy(current_proxy$ip, current_proxy$port), authenticate(current_proxy$ip, current_proxy$port)
            authenticate(current_proxy$user, current_proxy$password))

IV. QA session: common pitfalls for novices

Q：What should I do if I can't connect to the proxy even though it's set up successfully?
A: First check the three elements: the IP port is not right, the account password has no space, the protocol type is not selected correctly. ipipipgo clients areOne-Click TestingFunctionality. You can try it there first.

Q: What should I do if the acquisition speed suddenly slows down?
A: It is possible that the current IP is restricted. Suggestions: ① set the request interval time ② switch to ipipgoStatic Residential IPBetter stability

Q: What if I need to collect overseas websites?
A: Just go with ipipgo'scross-border rail linePackages, 200+ countries around the world, remember to choose the agent node of the target region!

V. Why do you recommend ipipgo?

I've used seven or eight proxy service providers, and I've ended up using ipipgo for a long time, mainly because of these points:

A special shout-out to theirTK LineThe success rate is obviously much higher when collecting certain sensitive platforms. Before helping customers to do competitive analysis, with ordinary agents ten times have three failures, change the TK line is basically as stable as the old dog.

Lastly, I would like to make a final comment: don't spend a lot of money on proxies! Seen too many people in order to save a few dollars with a garbage proxy, the results were blocked IP, delaying the progress of the project but more losses. Choose ipipgo this kind of charge transparent service provider, at least clear price no set, with not disturbed.