Yedek sonucun nasıl ve neden kullanıldığıyla ilgili bilgiler. Bu alanın ayarlanması, sunucunun yedek olarak tercih ettiğiniz moddan farklı bir yönlendirme modu kullandığı anlamına gelir.
Orijinal yanıt yerine yedek yanıtın kullanılmasının nedeni. Bu alan yalnızca yedek mod tetiklendiğinde ve yedek yanıt döndürüldüğünde doldurulur.
FallbackRoutingMode
Döndürülen yedek yanıt için kullanılan gerçek yönlendirme modu.
Sıralamalar
FALLBACK_ROUTING_MODE_UNSPECIFIED
Kullanılmıyor.
FALLBACK_TRAFFIC_UNAWARE
Yanıtı hesaplamak için TRAFFIC_UNAWARERoutingPreference öğesinin kullanıldığını gösterir.
FALLBACK_TRAFFIC_AWARE
Yanıtı hesaplamak için TRAFFIC_AWARERoutingPreference öğesinin kullanıldığını gösterir.
FallbackReason
Yedek yanıtı kullanma nedenleri.
Sıralamalar
FALLBACK_REASON_UNSPECIFIED
Yedek nedeni belirtilmedi.
SERVER_ERROR
Tercih ettiğiniz yönlendirme moduyla rotalar hesaplanırken bir sunucu hatası oluştu. Ancak, alternatif bir mod tarafından hesaplanan bir sonuç döndürebildik.
LATENCY_EXCEEDED
Tercih ettiğiniz yönlendirme moduyla hesaplamayı zamanında tamamlayamadık, ancak alternatif bir mod tarafından hesaplanan bir sonuç döndürebildik.
[[["Anlaması kolay","easyToUnderstand","thumb-up"],["Sorunumu çözdü","solvedMyProblem","thumb-up"],["Diğer","otherUp","thumb-up"]],[["İhtiyacım olan bilgiler yok","missingTheInformationINeed","thumb-down"],["Çok karmaşık / çok fazla adım var","tooComplicatedTooManySteps","thumb-down"],["Güncel değil","outOfDate","thumb-down"],["Çeviri sorunu","translationIssue","thumb-down"],["Örnek veya kod sorunu","samplesCodeIssue","thumb-down"],["Diğer","otherDown","thumb-down"]],["Son güncelleme tarihi: 2025-08-31 UTC."],[[["\u003cp\u003eFallbackInfo provides details on why and how a fallback routing result was used if the server deviated from the preferred routing mode.\u003c/p\u003e\n"],["\u003cp\u003eThis information includes the actual routing mode used (FallbackRoutingMode) and the reason for the fallback (FallbackReason).\u003c/p\u003e\n"],["\u003cp\u003eFallbackRoutingMode specifies whether traffic conditions were considered in the fallback route (TRAFFIC_AWARE or TRAFFIC_UNAWARE).\u003c/p\u003e\n"],["\u003cp\u003eFallbackReason clarifies if the fallback was due to a server error or exceeding the allowed calculation time.\u003c/p\u003e\n"]]],["The server may use a fallback routing mode if the preferred mode fails. This fallback information is provided in JSON format, including the `routingMode` used and the `reason` for the fallback. The `routingMode` can be `FALLBACK_TRAFFIC_UNAWARE` or `FALLBACK_TRAFFIC_AWARE`. The `reason` can be `SERVER_ERROR` (due to an internal error) or `LATENCY_EXCEEDED` (calculation exceeded the allowed time). Specific enumerations define the exact fallback mode and reason used.\n"],null,["# FallbackInfo\n\n- [JSON representation](#SCHEMA_REPRESENTATION)\n- [FallbackRoutingMode](#FallbackRoutingMode)\n- [FallbackReason](#FallbackReason)\n\nInformation related to how and why a fallback result was used. If this field is set, then it means the server used a different routing mode from your preferred mode as fallback.\n\n| JSON representation |\n|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| ``` { \"routingMode\": enum (/maps/documentation/routes/reference/rest/v2/FallbackInfo#FallbackRoutingMode), \"reason\": enum (/maps/documentation/routes/reference/rest/v2/FallbackInfo#FallbackReason) } ``` |\n\n| Fields ||\n|---------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `routingMode` | `enum (`[FallbackRoutingMode](/maps/documentation/routes/reference/rest/v2/FallbackInfo#FallbackRoutingMode)`)` Routing mode used for the response. If fallback was triggered, the mode may be different from routing preference set in the original client request. |\n| `reason` | `enum (`[FallbackReason](/maps/documentation/routes/reference/rest/v2/FallbackInfo#FallbackReason)`)` The reason why fallback response was used instead of the original response. This field is only populated when the fallback mode is triggered and the fallback response is returned. |\n\nFallbackRoutingMode\n-------------------\n\nActual routing mode used for returned fallback response.\n\n| Enums ||\n|-------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `FALLBACK_ROUTING_MODE_UNSPECIFIED` | Not used. |\n| `FALLBACK_TRAFFIC_UNAWARE` | Indicates the `TRAFFIC_UNAWARE` [`RoutingPreference`](/maps/documentation/routes/reference/rest/v2/RoutingPreference) was used to compute the response. |\n| `FALLBACK_TRAFFIC_AWARE` | Indicates the `TRAFFIC_AWARE` [`RoutingPreference`](/maps/documentation/routes/reference/rest/v2/RoutingPreference) was used to compute the response. |\n\nFallbackReason\n--------------\n\nReasons for using fallback response.\n\n| Enums ||\n|-------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `FALLBACK_REASON_UNSPECIFIED` | No fallback reason specified. |\n| `SERVER_ERROR` | A server error happened while calculating routes with your preferred routing mode, but we were able to return a result calculated by an alternative mode. |\n| `LATENCY_EXCEEDED` | We were not able to finish the calculation with your preferred routing mode on time, but we were able to return a result calculated by an alternative mode. |"]]
