functions/Disconnect-WUGServer.ps1

<#
.SYNOPSIS
Disconnects from a WhatsUp Gold (WUG) server and clears global variables set by Connect-WUGServer.
 
.DESCRIPTION
The Disconnect-WUGServer function disconnects from the WhatsUp Gold server by clearing the global variables
set by the Connect-WUGServer function. This includes the authorization header, token expiration time, base URI,
token URI, and refresh token. Once disconnected, any subsequent API requests will fail until a new connection
is established using Connect-WUGServer.
 
.EXAMPLE
Disconnect-WUGServer
Disconnects from the connected WhatsUp Gold server and clears the global variables.
 
.NOTES
Author: Jason Alberino
Modified 2024-04-14
 
#>


function Disconnect-WUGServer {
    begin {
        Write-Debug "Starting Disconnect-WUGServer function"
        
        # Check if there is an active connection
        if ($global:WhatsUpServerBaseURI) {
            Write-Debug "Active connection found: $global:WhatsUpServerBaseURI"
        }
        else {
            Write-Debug "No active connection to disconnect."
        }
    }

    process {
        # Inform the user about the disconnection
        if ($global:WhatsUpServerBaseURI) {
            # Clear global variables
            Write-Debug "Clearing global variables related to the WUG server connection"
            $global:WUGBearerHeaders = $null
            $global:expiry = $null
            $global:WhatsUpServerBaseURI = $null
            $global:tokenUri = $null
            $global:WUGRefreshToken = $null
            $global:IgnoreSSLErrors = $null
            Write-Information "You've disconnected from $global:WhatsUpServerBaseURI"
        }
        else {
            Write-Information "No active connection found."
        }
    }

    end {
        Write-Debug "Completed Disconnect-WUGServer function"
    }
}

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