Start-RabbitMqListener.ps1

function Start-RabbitMqListener {
    <#
    .SYNOPSIS
        Start a RabbitMq listener
 
    .DESCRIPTION
        Start a RabbitMq listener that runs until you break execution
 
    .PARAMETER ComputerName
        RabbitMq host
 
        If SSL is specified, we use this as the SslOption server name as well.
 
    .PARAMETER Exchange
        RabbitMq Exchange
 
    .PARAMETER ExchangeType
        Specify the Exchange Type to be Explicitly declared as non-durable, non-autodelete, without any option.
        Should you want more specific Exchange, create it prior connecting to the channel, and do not specify this parameter.
         
    .PARAMETER Key
        Routing Key to look for
 
        If you specify a QueueName and no Key, we use the QueueName as the key
 
    .PARAMETER QueueName
        If specified, bind to this queue.
 
        If not specified, create a temporal queue
 
    .PARAMETER Durable
        If queuename is specified, this needs to match whether it is durable
 
    .PARAMETER Exclusive
        If queuename is specified, this needs to match whether it is Exclusive
 
    .PARAMETER AutoDelete
        If queuename is specified, this needs to match whether it is AutoDelete
 
    .PARAMETER RequireAck
        If specified, require an ack for messages
 
        Note: Without this, dequeue seems to empty a whole queue?
 
    .PARAMETER LoopInterval
        Seconds. Timeout for each interval we wait for a RabbitMq message. Defaults to 1 second.
 
    .PARAMETER Credential
        Optional PSCredential to connect to RabbitMq with
 
    .PARAMETER CertPath
        Pkcs12/PFX formatted certificate to connect to RabbitMq with. Prior to connecting, please make sure the system trusts the CA issuer or self-signed SCMB certifiate.
 
    .PARAMETER CertPassphrase
        The SecureString Pkcs12/PFX Passphrase of the certificate.
 
    .PARAMETER Ssl
        Optional Ssl version to connect to RabbitMq with
 
        If specified, we use ComputerName as the SslOption ServerName property.
 
    .PARAMETER vhost
        Create a connection via the specified virtual host, default is /
 
    .PARAMETER IncludeEnvelope
        Include the Message envelope (Metadata) of the message. If ommited, only
        the payload (body of the message) is returned
 
    .EXAMPLE
        Start-RabbitMqListener -ComputerName RabbitMq.Contoso.com -Exchange MyExchange -Key 'wat' -Credential $Credential -Ssl Tls12
 
        # Connect to RabbitMq.contoso.com over Tls 1.2 with credentials in $Credential
        # Listen for new messages on MyExchange exchange, with routing key 'wat'
    #>

    param(
        [string]$ComputerName = $Script:RabbitMqConfig.ComputerName,

        [parameter(Mandatory = $True)]
        [string]$Exchange,
        
        [parameter(Mandatory = $false)]
        [ValidateSet('Direct','Fanout','Topic','Headers')]
        [string]$ExchangeType = $null,

        [Alias('routing_key')]
        [parameter(ParameterSetName = 'NoQueueName',Mandatory = $true)]
        [parameter(ParameterSetName = 'QueueName',Mandatory = $false)]
        [string]$Key,

        [Alias('Queue')]
        [parameter(ParameterSetName = 'QueueName',
                   Mandatory = $True)]
        [string]$QueueName,

        [parameter(ParameterSetName = 'QueueName')]
        [bool]$Durable = $true,

        [parameter(ParameterSetName = 'QueueName')]
        [bool]$Exclusive = $False,

        [parameter(ParameterSetName = 'QueueName')]
        [bool]$AutoDelete = $False,

        [parameter(ParameterSetName = 'QueueName')]
        [System.Collections.Generic.Dictionary[String, Object]]$Arguments = $null,

        [switch]$RequireAck,

        [int]$LoopInterval = 1,

        [double]$LoopIntervalMilliseconds = 0,

        [PSCredential]
        [System.Management.Automation.Credential()]
        $Credential,

        [string]$CertPath,

        [securestring]$CertPassphrase,

        [System.Security.Authentication.SslProtocols]$Ssl,

        [string]$vhost = '/',

        [switch]$IncludeEnvelope
    )
    try
    {
        #Build the connection and channel params
        $ConnParams = @{ ComputerName = $ComputerName }
        $ChanParams = @{ Exchange = $Exchange }
        Switch($PSBoundParameters.Keys)
        {
            'Ssl'            { $ConnParams.Add('Ssl',$Ssl) }
            'CertPath'       { $ConnParams.Add('CertPath',$CertPath)}
            'CertPassphrase' { $ConnParams.Add('CertPassphrase',$CertPassphrase)}
            'Credential'     { $ConnParams.Add('Credential',$Credential) }
            'vhost'          { $ConnParams.Add('vhost',$vhost) }
            'Key'            { $ChanParams.Add('Key',$Key)}
            'ExchangeType'   { $ChanParams.Add('ExchangeType',$ExchangeType)}
            'QueueName'
            {
                $ChanParams.Add('QueueName', $QueueName)
                $ChanParams.Add('Durable', $Durable)
                $ChanParams.Add('Exclusive', $Exclusive)
                $ChanParams.Add('AutoDelete', $AutoDelete)
                $ChanParams.Add('Arguments', $Arguments)
            }
        }

        Write-Progress -id 10 -Activity 'Create SCMB Connection' -Status 'Building connection' -PercentComplete 0

        #Create the connection and channel
        $Connection = New-RabbitMqConnectionFactory @ConnParams
        Write-Progress -id 10 -Activity 'Create SCMB Connection' -Status 'Connection Established' -PercentComplete 75

        $Channel = Connect-RabbitMqChannel @ChanParams -Connection $Connection
        Write-Progress -id 10 -Activity 'Create SCMB Connection' -Status 'Connected' -Completed

        #Create our consumer
        $Consumer = New-Object RabbitMQ.Client.QueueingBasicConsumer($Channel)
        $Channel.BasicConsume($QueueResult.QueueName, [bool](!$RequireAck), $Consumer) > $Null

        $Delivery = New-Object RabbitMQ.Client.Events.BasicDeliverEventArgs

        #Listen on an infinite loop but still use timeouts so Ctrl+C will work!
        $Timeout = (New-TimeSpan -Seconds $LoopInterval) + ([timeSpan]::FromMilliseconds($LoopIntervalMilliseconds))

        while($true)
        {
            if($Consumer.Queue.Dequeue($Timeout.TotalMilliseconds, [ref]$Delivery))
            {
                ConvertFrom-RabbitMqDelivery -Delivery $Delivery -IncludeEnvelope:([bool]$IncludeEnvelope)
                if($RequireAck)
                {
                    $Channel.BasicAck($Delivery.DeliveryTag, $false)
                }
            }
        }
    }
    finally
    {
        if($Channel)
        {
            $Channel.Close()
        }
        if($Connection -and $Connection.IsOpen)
        {
            $Connection.Close()
        }
    }
}