.net Azure HTTP POST从Power BI Power Query请求访问令牌

我们使用grant_type=“client_credentials”和生成的令牌尝试了上述代码，但API未获得身份验证

请您与grant_type=“authorization\u code”分享该示例，当我们在上述代码中替换grant_type=“authorization\u code”时，我们会收到以下错误消息-

“”查询中出现错误。DataSource.Error:Web.Contents无法从中获取内容

let
  apiUrl = "https://login.windows.net/61xxxxxxxxxxxx/oauth2/token",
    body = [
          client_id="3728xxxxxxxxxxxxxx5",
          grant_type="client_credentials",
          client_secret="bxxxxxxxxxxxxh",
          resource="api://xxxxxxxxxxxxxxxx5"
],

  Source = Json.Document(Web.Contents(apiUrl, [Headers = [Accept = "application/json"],
 Content = Text.ToBinary(Uri.BuildQueryString(body))]))
in
Source

'https://xxxxxxxxx/oauth2/token/' (400): Bad Request
Details:
    DataSourceKind=Web
    DataSourcePath=https://xxxxxxxxxx/oauth2/token
    Url=https://xxxxxxxxxxxxxxxxxxxxx/oauth2/token/