Convert to and from msgpack objects in R using the official msgpack-c API through Rcpp.

A flowchart describing the conversion of R objects into msgpack objects and back.

Msgpack EXT types are converted to raw vectors with EXT attributes containing the extension type. The extension type must be an integer from 0 to 127.

Maps are converted to data.frames with additional class "map". Map objects in R contain key and value list columns and can be simplified to named lists or named vectors. The helper function msgpack_map creates map objects that can be serialized into msgpack.

For more information on msgpack types, see here.

1. On Windows, install Rtools (https://cran.r-project.org/bin/windows/Rtools/)
2. In R, install devtools: install.packages("devtools")
3. library(devtools)
4. install_github("traversc/msgpack2R")

See examples/tests.r for more examples.

library(msgpack2R)
library(microbenchmark)

x <- as.list(1:1e7)
microbenchmark(xpk <- msgpack_pack(x), times=3) # ~ 0.5 seconds
microbenchmark(xu <- msgpack_unpack(xpk), times=3) # ~ 2.5-3 seconds