如何在Powershell中进行经过身份验证的Web请求？

$username = "your_username"
$password = "your_password"
$url = "https://example.com/api/endpoint"

$securePassword = ConvertTo-SecureString $password -AsPlainText -Force
$credentials = New-Object System.Management.Automation.PSCredential ($username, $securePassword)

$headers = @{
    Authorization = "Basic $([System.Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes("$($credentials.UserName):$($credentials.GetNetworkCredential().Password)")))"
}

Invoke-WebRequest -Uri $url -Method GET -Headers $headers