NewSet-FileApi.ps1

function Set-FileApi
{
[cmdletbinding(
    SupportsShouldProcess
)]
Param(
    [Parameter(Mandatory)]
    [hashtable]
    $Authorization
    ,
    [string]
    $FileName
    ,
    [string]
    $Content = [string]::Empty
)
    $invokeSplat = @{
        Uri = "http://localhost:11000/api/file"
        Method = "Post"
    }

    $body = @{
        Authorization = $Authorization.Authorization
        FileName      = $FileName
        Content       = $Content
    }

    if ($PSCmdlet.ShouldProcess($FileName, "Set content"))
    {
        $respons = Invoke-RestMethod @invokeSplat -Body $body

        if ($respons.error)
        {
            throw $respons.error.message
        }

        if ($respons.StatusCode -eq 200)
        {
            $respons.Content | ConvertFrom-Json
        }
        else
        {
            Write-Error -Message "Respons was not successfull, StatusCode is [$($respons.StatusCode)]" -ErrorAction Stop
        }
    }
}