Rebus.SingleAccessSagas (nuget): Provides opt-in support for concurrency controls on Rebus message handling. This includes single access sagas (ie. only ony handler for a given saga running at a time) as well as more general handler throttling (ie. Throttling message through put based on types or properties)
Keywords: rebus|queue|messaging|service|bus|single|access|saga|concurrency|lock|sagas