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Golang RServe client. Use R from Go
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dareid Merge pull request #44 from senseyeio/43
#43 adding go module support
Latest commit 43e330b Oct 9, 2019
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assign use a signed int64 instead of uint64 as large header Nov 17, 2017
constants Added support for int and double assignment Jul 20, 2017
sexp fixing bug - for instead of if -in xt-string and xt-sym-name where en… Sep 2, 2018
.gitignore Initial commit Aug 10, 2015
.travis.yml Trying to fix travis build Jul 9, 2016 Bumping version to 0.3.1 Jul 13, 2017
LICENSE Updating license Jun 21, 2016
assignment_test.go Added support for int and double assignment Jul 20, 2017
client.go Adding support for sessions closing #14. Cleanup of client API. Impro… Sep 3, 2015
client_test.go Fixed handshake failure detection. Closes #32 Mar 5, 2016
crypt.go Supporting authentication. Closes #2 Aug 21, 2015
go.mod #43 adding go module support Oct 9, 2019
go.sum #43 adding go module support Oct 9, 2019
list-processing_test.go Correcting offset returned by parseBoolArray. Partly fixes #26 (still… Jan 18, 2016
packet.go Added public GetError method to the packet. Dec 1, 2017
packet_test.go Added two tests to the new packet.GetError method. Dec 1, 2017
session.go Fixing large assignments. Closes #36 Jul 13, 2017
session_test.go Reorganisation and cleanup. Added a few tests. Feb 8, 2016
sexp_parsing_test.go added a test for testing the return of a class - specifically this cl… Sep 4, 2018


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Roger is a Go RServe client, allowing the capabilities of R to be used from Go applications.

The communication between Go and R is via TCP. It is thread safe and supports long running R operations synchronously or asynchronously (using channels).

package main

import (


func main() {
	rClient, err := roger.NewRClient("", 6311)
	if err != nil {
		fmt.Println("Failed to connect")

	value, err := rClient.Eval("pi")
	if err != nil {
		fmt.Println("Command failed: " + err.Error())
	} else {
		fmt.Println(value) // 3.141592653589793

	helloWorld, _ := rClient.Eval("as.character('Hello World')")
	fmt.Println(helloWorld) // Hello World

	arrChan := rClient.Evaluate("Sys.sleep(5); c(1,1)")
	arrResponse := <-arrChan
	arr, _ := arrResponse.GetResultObject()
	fmt.Println(arr) // [1, 1]

Response Type Support

Roger currently supports the following response types from R:

  • string and string arrays
  • booleans and boolean arrays
  • doubles and double arrays
  • ints and int arrays
  • complex and complex arrays
  • lists
  • raw byte arrays

With the use of JSON, this capability can be used to transfer any serializable object. For examples see sexp_parsing_test.go.

Assignment Support

Roger allows variables to be defined within an R session from Go. Currently the following types are supported for variable assignment:

  • string and string arrays
  • byte arrays
  • doubles and double arrays
  • ints and int arrays

For examples see assignment_test.go.


Rserve should be installed and started from R:


More information is available on RServe's website.

If you would like to exploit the current R environment from go, start RServe using the following command:


Install Roger using:

go get


To ensure the library functions correctly, the end to end functionality must be tested. This is achieved using Docker and Docker Compose. To run tests, ensure you have both Docker and Docker Compose installed, then run docker-compose build && docker-compose up -d from within the test directory. This command will build and start a docker container containing multiple RServe servers. These servers will be utilized when running go test from the project's base directory. To stop the docker container call docker-compose stop from the test directory.


Issues, pull requests and questions are welcomed. If required, assistance can be found in the project's gitter chat room.

Pull Requests

  • Fork the repository
  • Make changes
  • Ensure tests pass
  • Raise pull request
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