golang框架在分布式系统中扩展性方案

// 定义服务接口（proto 文件）
package pb

import (
    "google.golang.org/protobuf/types/known/emptypb"
)

type ExampleService interface {
    Create(ctx context.Context, req *CreateRequest) (*Example, error)
    Get(ctx context.Context, req *GetRequest) (*Example, error)
    List(ctx context.Context, req *ListRequest) (*Examples, error)
}

// CreateRequest represents a request to create a new example.
type CreateRequest struct {
    Name string `json:"name"`
}

// GetRequest represents a request to get an example by its ID.
type GetRequest struct {
    Id int64 `json:"id"`
}

// ListRequest represents a request to list all examples.
type ListRequest struct {
    Page int64 `json:"page"` // Optional
    Size int64 `json:"size"` // Optional
}

// Example represents a simple example entity.
type Example struct {
    Id   int64  `json:"id"`
    Name string `json:"name"`
}

// Examples is a list of examples.
type Examples struct {
    List []*Example `json:"list"`
    Next string    `json:"next"`
}