如何调用rest方法powershell来获取访问令牌

$clientId = "你的客户端ID"
$clientSecret = "你的客户端秘钥"

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

$apiUrl = "REST API 的地址"
$authUrl = "认证 API 的地址"

$tokenEndpoint = "$authUrl/token"
$resourceEndpoint = "$apiUrl/your-resource-path"

$headers = @{
    "Authorization" = "Bearer $accessToken"
    "Content-Type" = "application/json"
}

$tokenParams = @{
    grant_type = "client_credentials"
    client_id = $clientId
    client_secret = $clientSecret
    scope = "your-scope"
}

$accessTokenResponse = Invoke-RestMethod -Uri $tokenEndpoint -Method POST -Headers $headers -Body $tokenParams

$accessToken = $accessTokenResponse.access_token

Invoke-RestMethod -Uri $resourceEndpoint -Method GET -Headers $headers