Auth and other headers for making REST Request in powershell...

BasicAuthRequest.ps1

$base64AuthInfo = [Convert]::ToBase64String([Text.Encoding]::ASCII.GetBytes(("{0}:{1}" -f $username,$password)))


$dict = @{Authorization=("Basic {0}" -f $base64AuthInfo)}
$dict.Add("Accept", "application/json")

$response = Invoke-RestMethod -Uri $Url -Method Get  -ContentType "application/json" -Headers $dict
$response