is_hosted_session: Detect if running in a hosted session

In azr: Credential Chain for Seamless 'OAuth 2.0' Authentication to 'Azure Services'

Detect if running in a hosted session

Description

Determines whether the current R session is running in a hosted environment such as Google Colab, VS Code, Kubernetes, or RStudio Server (non-localhost).

Usage

is_hosted_session()

Details

This function checks for (in order):

• Option override: if azr.hosted option is set, returns isTRUE() of its value

• Google Colab: presence of the COLAB_RELEASE_TAG environment variable

• VS Code: presence of the VSCODE_INJECTION or VSCODE_PROXY_URI environment variable

• Kubernetes: presence of the KUBERNETES_SERVICE_HOST environment variable

• RStudio Server: RSTUDIO_PROGRAM_MODE is "server" and RSTUDIO_HTTP_REFERER does not contain "localhost"

Value

A logical value: TRUE if running in a hosted session (Google Colab, VS Code, Kubernetes, or remote RStudio Server), FALSE otherwise.

Examples

if (is_hosted_session()) {
  message("Running in a hosted environment")
}

azr documentation built on May 5, 2026, 1:08 a.m.