check_version {metajam}

Check PID version

Description

This function takes an identifier and checks to see if it has been obsoleted.

Usage

check_version(pid, formatType = NULL)

Arguments

pid

(character) The persistent identifier of a data, metadata, or resource map object on a DataONE member node.

formatType

(character) Optional. The format type to return (one of 'data', 'metadata', or 'resource').

Value

(data.frame) A data frame of object version PIDs and related information.

Examples

## Not run: 
# Most data URLs and identifiers work
check_version("https://cn.dataone.org/cn/v2/resolve/urn:uuid:a2834e3e-f453-4c2b-8343-99477662b570")
check_version("doi:10.18739/A2ZF6M")

# Specify a formatType (data, metadata, or resource)
check_version("doi:10.18739/A2ZF6M", formatType = "metadata")

# Returns a warning if the identifier has been obsoleted
check_version("doi:10.18739/A2HF7Z", formatType = "metadata")

# Returns an error if no matching identifiers are found
check_version("a_test_pid")

# Returns a warning if several identifiers are returned
check_version("10.18739/A2057CR99")

## End(Not run)