make an web request using basic authentication in powershel

authentication-web-request.ps1

function Invoke-AuthenticatedWebRequest {
	param (
		[string] $uri,
		[string] $userName,
		[string] $password,
		[string] $method,
		[string] $contentType
	)
	
	$credentials = "$($userName):$($password)"
	$encodedCredentials = [System.Convert]::ToBase64String([System.Text.Encoding]::ASCII.GetBytes($credentials))
	$basicAuthValue = "Basic $encodedCredentials"
	$headers = @{
		Authorization = $basicAuthValue
	}

	Invoke-WebRequest -Uri $uri -Headers $headers -Method $method -ContentType $contentType -DisableKeepAlive
}