OAuth access for R

I'm trying to use R to grab some web data that requires OAuth authentication. Searching on CRAN and RSeek.org for info on OAuth + R provides nothing. Any tips开发者_开发百科 for accessing RESTful APIs with R using OAuth?

I'm considering using some Python/Perl/Ruby to grab the data, save it to a text file, then work on it with R. I'd prefer to stay totally in R, but it seems like OAuth is a barrier.

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Turns out Jeff Gentry from TwitteR wrote his own OAuth R library.

http://cran.r-project.org/web/packages/ROAuth/index.html

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Best approach now appears to be to use httr (https://github.com/r-lib/httr)

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One option I stumbled on is called OAuth Proxy and it slips the OAuth headers in using a proxy. This is an interesting kludge.

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Another possible, assuming you have access to the required crypto functions in R, you can implement OAuth completely as HTTP requests without any lib support etc.

While writing a complete oauth lib might be asking too much, if you just need a quick and dirty way to pull down data, it shouldn't be too difficult to hand craft the few functions you need to complete an oauth request.

Also, while R may not have an oauth lib, most of the difficult part of oauth is in the interaction between servers, not in creating the tokens/requests, so you should be able to look at another language's implementation and port the required logic to R. I would suggest looking at a simple lib from http://oauth.net/code/ for a starting point.

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It's possible to do this with the RCurl library as well. The main thing is that you parse the access_tokens and authorization verifications correctly. But I've managed to pull lots of data off of facebook with R via getURL.