Get-credentials and base64 encode credentials at runtime to access Workspace ONE UEM API's

MoreSecureAtRuntime.ps1

$VerbosePreference = "Continue"
$script:config = "config.ini"
Write-Verbose -Message "The username is in the format domain\samAccountName"
function Test-APICred {
    [CmdletBinding()]
    [OutputType([String])]  
    Param ( 
        [Parameter( 
            Mandatory = $true, 
            ValueFromPipeLine = $true, 
            ValueFromPipelineByPropertyName = $true
        )] 
        [Alias( 
            'PSCredential'
        )] 
        [ValidateNotNull()] 
        [System.Management.Automation.PSCredential]
        [System.Management.Automation.Credential()] 
        $script:Credentials
    )
    $script:Root = $null
    $script:Username = $null
    $script:Password = $null
    If ($script:Credentials -eq $null) {
        Try {
            $script:Credentials = Get-Credential
        }
        Catch {
            $ErrorMsg = $_.Exception.Message
            Write-Verbose "Failed to get credentials: $ErrorMsg "
            Pause
            Break
        }
    }
    # Checking module
    Try {
        # Split username and password
        $script:Username = $credentials.username
        $script:Password = $credentials.GetNetworkCredential().password
    }
    Catch {
        $ErrorMsg = $_.Exception.Message
        Write-Verbose "Failed to get credentials, $ErrorMsg "
        Pause
        Break 
    }
}
Test-APICred
Write-Verbose -Message "The username is $UserName"
Write-Verbose -Message "Starting to create base64 encoded credentials...."
Function Set-Base64 {
    Write-Verbose -Message "The username to be encoded is $Username"
    $script:pair = $Username, $Password -join ":"
    $encoding = [System.Text.Encoding]::ASCII.GetBytes($pair)
    $script:b64 = [Convert]::ToBase64String($encoding)
    If ($b64 -eq $null) {
        Write-Verbose -Message "We do not have base 64 encoded credentials."
        Break
    }
    Write-Verbose -Message "Base 64 encoded credentials created...."
}
Set-Base64
Write-Verbose "Proceeding to the next function get the application ID for Chrome....."
Write-Verbose -Message "Getting the Chrome application to update the token...."
Function Get-ChromeID {
    $script:chromeAppID = $null
    $appToken = 'com.android.chrome'
    [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
    $filepath = Get-Location 
    $WS1Env = Get-Content -Path $filepath\$config | Select -Skip 1 | ConvertFrom-StringData
    $addy = $WS1Env.Environment
    $encodedString = "Basic " + $b64
    $apiKey = $WS1Env.apikey
    $useJSON = "application/json"
    $headers = @{"Authorization" = $encodedString; "aw-tenant-code" = $apiKey; "Accept" = $useJSON; "Content-Type" = $useJSON }
    try {
        $ServicePoint = [System.Net.ServicePointManager]::FindServicePoint($addy)
        Write-Verbose -Message "Successfully opened service point connection"
        $chrome = Invoke-RestMethod -Uri "$addy/API/mam/apps/search?bundleid=$appToken" -Headers $headers -TimeoutSec 45
        $chromeApp = $chrome.Application
        $script:chromeAppID = $chromeApp.Id.Value 
        $ServicePoint.CloseConnectionGroup("")
        Write-Verbose -Message "Successfully closed service point connection"
    }
    catch {
        $ErrorMsg = $_.Exception.Message
        Write-Warning "Failed to get Chrome application ID: $ErrorMsg "
        Pause
        Break 
    }
}
Get-ChromeID
Write-Host "$chromeAppID is the Chrome app ID"