Powershell - 'PUT' files to URL that require parameters - bash

Question

I've been trying for a while now to find a way in Powershell to take a list of files and upload them to a URL. (ive been able to do it in Unix Bash no problem).
However, I think there are issues with the parameters passing in and the URI building - causing a 500 internal server Error.
What I currently have is this:
$logfiles = "\\location\trace\logs"
$buildName = "NewBuild"
$EngineName = "DefaultEngine"
$request = "http://localhost:9005/parser/singleUploadTracerLib.do?
blockingUpload=true&autocommit=true&tracerSetName=$buildName&$EngineName"
foreach($f in $logfiles | Get-ChildItem) {
Invoke-WebRequest -Uri $Url -Verbose -Method PUT `
-Infile $f.FullName -ContentType 'application/octet-stream'
}
When I do this in bash - i have no issues (see below for comparison) so i assume I need to pass in the prams another way?
In Bash(works):
ls -N ${pathToLogs} | grep clean | sort | xargs -I {} echo "-F
inputs[]=#${pathToLogs}{}" | xargs curl -X POST
"${Url}/parser/singleUploadTracerLib.do?
blockingUpload=true&autocommit=true&
tracerSetName=${buildName}&EngineName=${engineName}"
any kind person got any ideas? it would be much appreciated.