Routing

/ app.go
func NewApp(...args) *App {
  / ...

  / Create static IBC router, add module routes, then set and seal it
    ibcRouter := port.NewRouter()

ibcRouter.AddRoute(ibctransfertypes.ModuleName, transferModule)
  / Note: moduleCallbacks must implement IBCModule interface
  ibcRouter.AddRoute(moduleName, moduleCallbacks)

  / Setting Router will finalize all routes by sealing router
  / No more routes can be added
  app.IBCKeeper.SetRouter(ibcRouter)

  / ...
}