Failed OAuth Authentication to Twitter API

Question

I understand authentication requirements for accessing the Twitter API have recently changed. The following code results in: Error in function (type, msg, asError = TRUE) : Failed to connect to api.twitter.com port 443: Timed out

Related answers' suggested code has been used. Wondering if they address the API access requirements changes.

library(twitteR)
library(devtools)
library(ROAuth)
library(RCurl)

download.file(url="http://curl.haxx.se/ca/cacert.pem",
          destfile="cacert.pem")

requestURL <- "https://api.twitter.com/oauth/request_token"
accessURL <- "https://api.twitter.com/oauth/access_token"
authURL <- "https://api.twitter.com/oauth/authorize"
consumerKey <- "xxxxxxxxxxxxxxxxxxxx"
consumerSecret <- "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
twitCred <- OAuthFactory$new(consumerKey=consumerKey,
                         consumerSecret=consumerSecret,
                         requestURL=requestURL,
                         accessURL=accessURL,
                         authURL=authURL)

twitCred$handshake(cainfo="cacert.pem")

Thanks.

Answer 1

Turns out it is a proxy server getting in my way. Running this code outside the LAN environment works just fine.

Answer 2

currently

>      api_key <- "-redacted-" 
>      api_secret <- "-redacted-"
>      access_token <-"-redacted-"
>      access_token_secret <- "-redacted-"

setup_twitter_oauth(api_key,api_secret,access_token,access_token_secret)

is in vogue.

Should you encounter any errors , please go ahead with

setup_twitter_oauth(consumer_key='your key' , consumer_secret= 'your secret ')

this should open up browser authentication. Hope it helps! Thanks