FallbackInfo

JSON representation
FallbackRoutingMode
FallbackReason

Information 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.

JSON representation
{ "routingMode": enum (`FallbackRoutingMode`), "reason": enum (`FallbackReason`) }

Fields

Fields
`routingMode`	`enum (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.
`reason`	`enum (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.

routingMode

enum (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.

reason

enum (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.

FallbackRoutingMode

Actual routing mode used for returned fallback response.

Enums
`FALLBACK_ROUTING_MODE_UNSPECIFIED`	Not used.
`FALLBACK_TRAFFIC_UNAWARE`	Indicates the `TRAFFIC_UNAWARE` `RoutingPreference` was used to compute the response.
`FALLBACK_TRAFFIC_AWARE`	Indicates the `TRAFFIC_AWARE` `RoutingPreference` was used to compute the response.

FallbackReason

Reasons for using fallback response.

Enums
`FALLBACK_REASON_UNSPECIFIED`	No fallback reason specified.
`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.
`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.