Can't delete files with powershell

[lucaortis]

function DropBox-FileDelete {

    Param (
        [Parameter(Mandatory=$true)]
        [string]$SourceFilePath
    )

    $DropBoxAccessToken = TOKEN HERE 
    $testFile = $SourceFilePath
    $TargetFilePath="/$testFile"
    $arg = '{"path": "' + $TargetFilePath + '"}'
    
    $authorization = "Bearer " + $DropBoxAccessToken

    $headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]"
    $headers.Add("Authorization", $authorization)
    $headers.Add("Content-Type", 'application/json')
    
    try {
        $result = Invoke-RestMethod -Uri https://api.dropboxapi.com/2/files/delete_v2 -Method Post -Headers $headers -Body $arg
    }
    catch {
        $result = $_.Exception.Response.GetResponseStream()
        $reader = New-Object System.IO.StreamReader($result)
        $reader.BaseStream.Position = 0
        $reader.DiscardBufferedData()
        $responseBody = $reader.ReadToEnd();
    }
    Write-Output $responseBody
}

DropBox-FileDelete "/Applicazioni/Costumer Manager Files/Ore.txt"

Hello. I just started using the API and I ran into this issue: 
I can upload files, I can download files but I cannot delete them.  

What am I missing here? 
It seems a path problem, but to me the path is fine. 
If the path was wrong, then I would not be able to upload or download, instead, I can download and upload just fine. 

Response body: 

{"error_summary": "path_lookup/malformed_path/", "error": {".tag": "path_lookup", "path_lookup": {".tag": "malformed_path"}}}

[Здравко]

---

@lucaortis wrote:

...
It seems a path problem, but to me the path is fine. 
If the path was wrong, then I would not be able to upload or download, instead, I can download and upload just fine. 

...

---

Hi @lucaortis,

You haven't posted the code responsible for upload and download. Are you using in the path there double leading slashes too? 🤔😁😉

Hope this gives direction.

[Greg-DB]

@lucaortis As Здравко pointed out, you have a double leading slash, which is not a valid path format.

Specifically, you're supplying the path "/Applicazioni/Costumer Manager Files/Ore.txt", but then are adding an extra leading slash when you format it with your code:

$TargetFilePath="/$testFile"

[lucaortis]

I found this very confusing but I managed to solve it like this: 

 $testFile = Split-Path $SourceFilePath -leaf
 $TargetFilePath="/$testFile"
 $arg = '{"path": "' + $TargetFilePath + '"}'

I know it works, but I'm really confused on how the path itself works. 
Upload and download code to format PATH are now the same as this. 

Thank you!!