Send-ToSlack_Process

Process
    {
    Try 
        {
        # Sends HTTPS request to the Slack Web API service. 
        $WebRequest = Invoke-WebRequest -Uri $Uri  -Body $PostMessage 
        # Conditional logic to generate custom error message if JSON object response contains a top-level error property. 
        If ($WebRequest.Content -like '*"ok":false*')
            {
            # Terminates with error if the response contains an error property, parses the error code and stops processing of the command. 
            Throw ($WebRequest.Content -split '"error":"')[1] -replace '"}',''
            } # If 
        } # Try 
    Catch 
        {
        # Terminates with error and stops processing of the command. 
        Throw ("Unable to send request to the web service with the following exception: " + $Error[0].Exception.Message )
        } # Catch 
    } # Process