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Project description

Librería MSCoppelPVM

MsCoppel

Paquete para implmentar microservicios basados en mensajes, utilizando kafka, para su implementacion se utiliza decoradores sobre las funciones, dependiendo de las acciones que se quieren implementar.

Instalacion

    $ pip install MsCoppelPVM

Métodos disponibles

  • List
  • Get
  • Create
  • Update
  • Delete

En caso de que no se definan mas elementos todos las peticiones siempre seran escuchadas por el metodo Listener.

Ejemplo

    from MsCoppel import Microservices, Options, Types, MsManager, ErrorMs


@Manager.Define(
    Options(
        'demo',  # Nombre de la aplicacion
        'plantilla',  # nombre del microservicio
        'v1',  # Version del microservicio
        ['kafka:9092'],  # Coleccion de servidores
        Types.WORKER, True
    )
)
class Demo(microservices):

    def smoketest(self):
        """
            Metodo que se utiliaza para validar el servicio
            desde una consulta REST.
 
            su valor de retorno siempre es logico.
        """
        True

    @MsManager.Errors
    def misErrores(self):
        return {'-12': 'Error definido por el usuario'}

    @MsManager.List
    def listar():
        pass

    @MsManager.Get
    def cosa(self, data, auth, id):
        raise ErrorMs(-12)

    @MsManager.Create
    def nuevo(self, data, auth):
        pass

    @MsManager.Update
    def actualizar(self, data, auth):
        pass

    @MsManager.Delete
    def eliminar(self, data, auth):
        pass

    @MsManager.Listener
    def lister(self, data, auth):
        return data


    @MsManager.HealthCheckLiveness([], ctx=['data'])
    def get_healthcheck_liveness(self, params):
        pass
    
    @MsManager.HealthCheckReadness([], ctx=['data'])
    def get_healthcheck_readness(self, params):
        pass

Errores

Para retornar un error se utiliza el estandar de python que es raise regresando un objeto error perzonalizado de la clase ErrorMs, tal como se muestra en el siguiente ejemplo

@MsManager.Get
    def cosa(self, data, auth, id):
        raise ErrorMs(-12)

Tome en cuenta que solo se indica el numero del error previamente registrados por el decorador @MsManager.Errors.

Project details


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