Reading error status code in R and handling the exception

Question

I am getting some data from a server in json or xml format , and the server is sending status code in header like 500,200,404 etc. So how can I get the error status code or the error and handle it in R. If I can get a simple sample code or any reference, it would work.

Or if there is some other way around that will also work.

Answer 1

If you are just looking to collect the status responses, you just need to inspect/parse what you get back.

library(httr)

GET("www.google.com")$status

# [1] 200

As a starting point for error handling... if you just want console warnings then you can use the function of the same name.

info_get <- GET("www.google.com")

if (info_get$status == 200) {

  warning(paste0("Response ", info_get$status, " received from target."))

}

# Warning message:
# Response 200 received from target.