Routes Preferred API 目前仅适用于部分客户。如需了解详情，请
与销售人员联系。
FallbackInfo
与使用回退结果的方式和原因相关的信息。如果设置了此字段，则表示服务器使用了与您的首选模式不同的路由模式作为后备选项。
如未另行说明，那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可，并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情，请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC)：2024-11-10。
[null,null,["最后更新时间 (UTC)：2024-11-10。"],[[["The `fallbackInfo` field provides insights into why and how a fallback result was utilized during routing."],["If present, it indicates the server deviated from the user's preferred routing mode."],["It includes `routingMode` and `reason` fields, specifying the alternative mode used and the cause for fallback."],["The `routingMode` field reveals the actual routing mode employed, which might differ from the user's initial preference."],["The `reason` field clarifies why the fallback response was necessary."]]],["The core content details a fallback mechanism used when the server cannot fulfill the preferred routing mode. It provides information in JSON format, including the `routingMode` used for the response and the `reason` for the fallback. The `routingMode` may differ from the client's preference, and the `reason` field explains why an alternate mode was employed. This information is only included when fallback occurs, indicating a deviation from the initial request.\n"]]
