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httr 0.4

Hadley Wickham Headshot
Written by Hadley Wickham
2014-07-31

httr 0.4 is now available on CRAN. The httr packages makes it easy to talk to web APIs from R.

The most important new features are two new vignettes to help you get started and to help you make wrappers for web APIs. Other important improvements include:

  • New headers() and cookies() functions to extract headers and cookies from responses. status_code() returns HTTP status codes.

  • POST() (and PUT(), and PATCH()) now have an encode argument that determine how the body is encoded. Valid values are “multipart”, “form” or “json”, and the multipart argument is now deprecated.

  • GET(..., progress()) will display a progress bar, useful if you’re doing large uploads or downloads.

  • verbose() gives you considerably more control over degree of verbosity, and defaults have been selected to be more helpful for the most common cases.

  • NULL query parameters are now dropped automatically.

There are number of other minor improvements and bug fixes, as described by the release notes.

Hadley Wickham Headshot

Hadley Wickham

Chief Scientist, Posit
Hadley is Chief Scientist at Posit PBC, winner of the 2019 COPSS award, and a member of the R Foundation. He builds tools (both computational and cognitive) to make data science easier, faster, and more fun. His work includes packages for data science (like the tidyverse, which includes ggplot2, dplyr, and tidyr)and principled software development (e.g. roxygen2, testthat, and pkgdown). He is also a writer, educator, and speaker promoting the use of R for data science.

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