Private/Request-ArmorApiToken.ps1

function Request-ArmorApiToken {
    <#
        .SYNOPSIS
        Retrieves an authentication token.

        .DESCRIPTION
        Retrieves an authentication token from a temporary authorization code.

        .INPUTS
        None
            You cannot pipe input to this cmdlet.

        .NOTES
        - Troy Lindsay
        - Twitter: @troylindsay42
        - GitHub: tlindsay42

        .EXAMPLE
        Request-ArmorApiToken -Code '+8oaKtcO9kuVbjUXlfnlHCY3HmXXCidHjzOBGwr+iTo='
        Submits the temporary authorization code to retrieve a new Armor API session
        token.

        .LINK
        https://tlindsay42.github.io/ArmorPowerShell/private/Request-ArmorApiToken/

        .LINK
        https://github.com/tlindsay42/ArmorPowerShell/blob/master/Armor/Private/Request-ArmorApiToken.ps1

        .LINK
        https://docs.armor.com/display/KBSS/Post+Token

        .LINK
        https://developer.armor.com/#!/Authentication/TenantOAuth_TokenAsync

        .COMPONENT
        Armor API

        .FUNCTIONALITY
        Armor sessions management
    #>


    [CmdletBinding( SupportsShouldProcess = $true, ConfirmImpact = 'Low' )]
    [OutputType( [PSCustomObject] )]
    param (
        # Specifies the temporary authorization code to redeem for a token.
        [Parameter(
            Mandatory = $true,
            Position = 0
        )]
        [ValidateNotNullorEmpty()]
        [String]
        $Code,

        # Specifies the type of permission.
        [Parameter( Position = 1 )]
        [ValidateSet( 'authorization_code' )]
        [String]
        $GrantType = 'authorization_code',

        # Specifies the API version for this request.
        [Parameter( Position = 2 )]
        [ValidateSet( 'v1.0', 'internal' )]
        [String]
        $ApiVersion = $Global:ArmorSession.ApiVersion
    )

    begin {
        $function = $MyInvocation.MyCommand.Name

        Write-Verbose -Message "Beginning: '${function}' with ParameterSetName '$( $PSCmdlet.ParameterSetName )' and Parameters: $( $PSBoundParameters | Out-String )"
    }

    process {
        [PSCustomObject] $return = $null

        $resources = Get-ArmorApiData -FunctionName $function -ApiVersion $ApiVersion

        $uri = New-ArmorApiUri -Endpoints $resources.Endpoints

        if ( $PSCmdlet.ShouldProcess( $Code, $resources.Description ) ) {
            $keys = ( $resources.Body | Get-Member -MemberType 'NoteProperty' ).Name
            $parameters = ( Get-Command -Name $function ).Parameters.Values
            $body = Format-ArmorApiRequestBody -Keys $keys -Parameters $parameters

            $splat = @{
                Uri         = $uri
                Method      = $resources.Method
                Body        = $body
                SuccessCode = $resources.SuccessCode
            }
            $results = Invoke-ArmorRestMethod @splat

            $filters = $resources.Filter |
                Get-Member -MemberType 'NoteProperty'
            $results = Select-ArmorApiResult -Results $results -Filters $filters

            $return = $results
        }

        $return
    }

    end {
        Write-Verbose -Message "Ending: '${function}'."
    }
}