OptionalidentityOptionalkeyBuilds the partition key used to isolate fixed-window counters.
Defaults to storageTaskId + ":" + serialized input.
Provide an explicit key when you want broader grouping, such as per user or
per identity admission limits.
Maximum number of requests within the window
OptionalmaxMaximum number of distinct live keys tracked for this middleware config.
Time window in milliseconds
Controls identity partitioning for middleware-managed state.
Omit this option to keep the shared cross-identity keyspace.