1. While creating your store, register your services as key/value pairs with the service middleware constructor:

  applyMiddleware(
    createServiceMiddleware({
      myKey: myService,
      myOtherKey: myOtherService
    })
  )

2. In your action creator, dispatch an action with the following shape:

  {
    type: serviceMiddleware.CALL_SERVICE
    payload: {
      service: 'myKey'
      method: 'methodName'
      args: [arg1, arg2]
    }
  }

Subsequent calls to dispatch with your action creator will return the result of calling myService.methodName(arg1, arg2)