sequence_diagram.puml

@startuml
skinparam monochrome reverse

title POST Request

HTTP -> Manager: new request
Manager -> ShardRegion: new FSM
ShardRegion -> FSMstate: InitState
ShardRegion -> FSMcmdHandler: RetrieveCmd
FSMcmdHandler -> Procurement: SomeOperation("retrieve")
FSMcmdHandler -> FSMevtHandler: persist(RetrieveEvent)
FSMcmdHandler -> GlobalTreeActor: UpdateTree
FSMevtHandler -> FSMstate: RetrievingState
...
Procurement -> FSMcmdHandler: OpCompleted
FSMcmdHandler -> FSMevtHandler: persist(RetrievedEvt)
FSMcmdHandler -> GlobalTreeActor: UpdateTree
FSMevtHandler -> FSMstate: RetrievedState
FSMstate -> FSMcmdHandler: buildBike()
FSMcmdHandler -> FSMcmdHandler: CreateCmd

FSMcmdHandler -> Procurement: SomeOperation("create")
FSMcmdHandler -> FSMevtHandler: persist(CreateEvent)
FSMcmdHandler -> GlobalTreeActor: UpdateTree
FSMevtHandler -> FSMstate: CreatingState
...
Procurement -> FSMcmdHandler: OpCompleted
FSMcmdHandler -> FSMevtHandler: persist(CreatedEvt)
FSMcmdHandler -> GlobalTreeActor: UpdateTree
FSMevtHandler -> FSMstate: CreatedState
FSMstate -> FSMcmdHandler: reserve()
FSMcmdHandler -> FSMcmdHandler: ReserveCmd

FSMcmdHandler -> Procurement: SomeOperation("reserve")
FSMcmdHandler -> FSMevtHandler: persist(ReserveEvent)
FSMcmdHandler -> GlobalTreeActor: UpdateTree
FSMevtHandler -> FSMstate: ReservingState
...
Procurement -> FSMcmdHandler: OpCompleted
FSMcmdHandler -> FSMevtHandler: persist(ReservedEvt)
FSMcmdHandler -> GlobalTreeActor: UpdateTree
FSMevtHandler -> FSMstate: ReservedState
...
HTTP -> Manager: done yet?
HTTP <- Manager: yes, location()

@enduml