httr 0.6.0

December 14, 2014
By

(This article was first published on RStudio Blog, and kindly contributed to R-bloggers)

httr 0.6.0 is now available on CRAN. The httr packages makes it easy to talk to web APIs from R. Learn more in the quick start vignette.

This release is mostly bug fixes and minor improvements. The most important are:

  • handle_reset(), which allows you to reset the default handle if you get the error “easy handle already used in multi handle”.
  • write_stream() which lets you process the response from a server as a stream of raw vectors (#143).
  • VERB() allows to you send a request with a custom http verb.
  • brew_dr() checks for common problems. It currently checks if your libcurl uses NSS. This is unlikely to work so it gives you some advice on how to fix the problem (thanks to Dirk Eddelbuettel for debugging this problem and suggesting a remedy).
  • Added support for Google OAuth2 service accounts. (#119, thanks to help from @siddharthab). See ?oauth_service_token for details.

I’ve also switched from RC to R6 (which should make it easier to extend OAuth classes for non-standard OAuth implementations), and tweaked the use of the backend SSL certificate details bundled with httr. See the release notes for complete details.

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