service_template.go

// Package service_decorators is to simplify your work on building microservices.
// The common functions for the microservices (such as, Circuit break, Rate limit,
// Metric...) have be encapsulated in the reusable components(decorators).
// To build a service is to decorate the core business logic with the common
// decorators, so you can only focus on the core business logic.
// @Auth chaocai2001@icloud.com
// @Created on 2018-6
package service_decorators

// Request is the interface of the service request.
type Request interface{}

// Response is the interface of the service response.
type Response interface{}

// ServiceFunc is the service function definition.
// To leverage the prebuilt decorators, the service function signature should follow it.
type ServiceFunc func(req Request) (Response, error)

// ServiceFallbackFunc is the fallback function definition
type ServiceFallbackFunc func(req Request, err error) (Response, error)

// Decorator is the interface of the decorators.
type Decorator interface {
	// Decorate function is to introdoce decorator's the functions
	Decorate(ServiceFunc) ServiceFunc
}