Private/Get-IDResponse.ps1

function Get-IDResponse {
    <#
    .SYNOPSIS
    Receives and returns the content of the web response from the CyberArk Identity API

    .DESCRIPTION
    Accepts a WebResponseObject.
    By default returns the Content property passed in the output of Invoke-IDRestMethod.
    Processes the API response as required depending on the format of the response, and
    the format required by the functions which initiated the request.

    .PARAMETER APIResponse
    A WebResponseObject, as returned from the Identity API using Invoke-WebRequest

    .EXAMPLE
    $WebResponseObject | Get-IDResponse

    Parses, if required, and returns, the required properties of $WebResponseObject

    #>

    [CmdletBinding()]
    [OutputType('System.Object')]
    param(
        [parameter(
            Position = 0,
            Mandatory = $true,
            ValueFromPipeline = $true)]
        [ValidateNotNullOrEmpty()]
        [Microsoft.PowerShell.Commands.WebResponseObject]$APIResponse

    )

    BEGIN {    }#begin

    PROCESS {

        if ($APIResponse.Content) {

            #Default Response - Return Content
            $IDResponse = $APIResponse.Content

            #get response content type
            $ContentType = $APIResponse.Headers['Content-Type']

            #handle content type
            switch ($ContentType) {

                { $PSItem -match 'text/html' } {

                    If ($IDResponse -match '<HTML>') {

                        If ($Script:ExpectHtml) {
                            #HTML output expected, null the html result
                            $IDResponse = $null

                        }

                        Else {

                            #Fail if HTML received from request to API

                            $PSCmdlet.ThrowTerminatingError(

                                [System.Management.Automation.ErrorRecord]::new(

                                    'Unexpected HTML Response Received. Check the URL provided for your Identity Portal.',
                                    $StatusCode,
                                    [System.Management.Automation.ErrorCategory]::NotSpecified,
                                    $APIResponse

                                )

                            )

                        }

                    }

                }

                { $PSItem -match 'application/json' } {

                    #application/json content expected
                    #Create Return Object from Returned JSON
                    $IDResponse = ConvertFrom-Json -InputObject $APIResponse.Content

                    switch ($IDResponse) {

                        ({ $PSItem.success -eq $false }) {

                            #if success property is false, throw error
                            $ErrorMessage = $IDResponse.Message
                            $ErrorID = $IDResponse.ErrorID

                            $PSCmdlet.ThrowTerminatingError(

                                [System.Management.Automation.ErrorRecord]::new(

                                    $ErrorMessage,
                                    $ErrorID,
                                    [System.Management.Automation.ErrorCategory]::NotSpecified,
                                    $IDResponse

                                )

                            )

                            break

                        }

                        ({ $PSItem.success -eq $true }) {

                            #when success property is returned, return result
                            $IDResponse = $IDResponse.Result
                            break

                        }

                    }

                }

            }

            #Return IDResponse
            $IDResponse

        }

    }#process

    END {    }#end

}