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rhttrpurrr

httr::GET() can't be handled purrr::safely()?

This is probably a fundamental misunderstanding on my part, but I thought purrr::safely() captured all errors and never failed. Yet:

> purrr::safely(httr::GET('http://revolution-news.com/'))
Error in curl::curl_fetch_memory(url, handle = handle) : 
  Couldn't resolve host name
Solution

  • safely is a function wrapper, not a function call wrapper. Use

    purrr::safely(httr::GET)('http://revolution-news.com/')

    Notice how it wraps the function GET(), not the call to get. You could break that apart to

    safe_GET <- purrr::safely(httr::GET)
safe_GET('http://revolution-news.com/')