servr: random_port – R documentation

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random_port

Find a random available TCP port

Description

Test a series of random TCP ports from 3000 to 8000 (excluding a few that are considered unsafe by Chrome) and return the first available one. A web server can be later started on this port.

Usage

random_port(port = 4321L, host = getOption("servr.host", "127.0.0.1"), n = 20)

Arguments

`port`	The preferred port(s).
`host`	A string that is a valid IPv4 address that is owned by this server, or `"0.0.0.0"` to listen on all IP addresses.
`n`	The maximum number of random ports to be tested.

Value

A port number, or an error if no ports are available.

servr

A Simple HTTP Server to Serve Static Files or Dynamic Documents

v0.22

GPL

Authors

Yihui Xie [aut, cre] (<https://orcid.org/0000-0003-0645-5666>), Carson Sievert [ctb], Jesse Anderson [ctb], Ramnath Vaidyanathan [ctb]

Initial release