关闭支持誓言令牌后,Azure Api Management返回详细信息错误

时间:2019-06-14 02:29:29

标签: azure-api-management

我正在从事API管理,后端已使用oauth客户端凭据进行了加密。如果关闭了后端,我将得到200的响应和详细错误,如下所示。

{
  "error": {
    "name": "StatusCodeError",
    "statusCode": 404,
    "message": "HTTP Error 404. The requested resource is not found.",
    "options": {
      "url": "https://...net.au/api/case/mycases/",
      "method": "GET",
      "headers": {
        "Authorization": "Bearer eyJ0eXAiOiJKV1QiLCJhb....."
      },
      "simple": true,
      "resolveWithFullResponse": false,
      "transform2xxOnly": false
    },
    "response": {
      "statusCode": 404,
      "body": "HTTP Error 404. The requested resource is not found.",
      "headers": {
        "content-length": "315",
        "content-type": "text/html; charset=us-ascii",
        "server": "Microsoft-HTTPAPI/2.0 Microsoft-HTTPAPI/2.0",
        "date": "Fri, 14 Jun 2019 02:12:36 GMT",
        "connection": "close"
      },
      "request": {
        "uri": {
          "protocol": "https:",
          "slashes": true,
          "auth": null,
          "host": ".....",
          "port": 443,
          "hostname": "....net.au",
          "hash": null,
          "search": null,
          "query": null,
          "pathname": "/api/case/mycases/",
          "path": "/api/case/mycases/",
          "href": "https://...."
        },
        "method": "GET",
        "headers": {
          "Authorization": "Bearer eyJ0eXAiO....."
        }
      }
    }
  },
  "status": 501
}

我只想像调用api一样返回响应。并隐藏所有其他详细信息,包括访问令牌。

{
  "error": {
    "name": "StatusCodeError",
    "statusCode": 404,
    "message": "HTTP Error 404. The requested resource is not found.",
 }
}

按照下面的答案,我已经更新了政策,后端处于脱机状态时会得到期望的响应,而后端处于联机状态时会得到空的响应。

        <choose>
            <when condition="@{

               var token = context.Response.Body.As<JToken>();
               if (token is JObject){
                    return true;
               }

                return false;
            }">
                <return-response>
                    <set-status code="404" reason="NotFound" />
                    <set-header name="Content-Type" exists-action="override">
                        <value>application/json</value>
                    </set-header>
                    <set-body>{
  "error": {
    "name": "StatusCodeError",
    "statusCode": 404,
    "message": "HTTP Error 404. The requested resource is not found.",
 }
}</set-body>
                </return-response>
            </when>
        </choose>

1 个答案:

答案 0 :(得分:0)

有两种情况可以从APIM获得404响应。一种是当您尝试调用APIM不知道的API /操作时,在这种情况下,APIM会生成404响应,并且响应时间很短,就像您的第二个响应一样。

另一种情况是APIM识别API /操作,调用后端,后端以404响应。在这种情况下,APIM不会将此视为问题,而只是将后端响应中继到客户端。您在第一个示例中拥有的东西看起来像后端会回复的东西。您可以通过从Azure门户中的测试控制台进行调用并检查提供的跟踪来确认这一点。

因此,您想要做的是用您选择的一种替换404响应正文,这可以通过策略轻松完成。在任何范围内都应遵循以下原则:

<outbound>
    <base/>
    <choose>
        <when condition="@(context.Response.StatusCode == 404)">
            <return-response>
                <set-status code="404" reason="NotFound">
                <set-header name="Content-Type">
                    <value>application/json</value>
                </set-header>
                <set-body>{
  "error": {
    "name": "StatusCodeError",
    "statusCode": 404,
    "message": "HTTP Error 404. The requested resource is not found.",
 }
}</set-body>
            </return-response>
        </when>
    </choose>
</outbound>