go-mir v5.0.1 发布，用 Go 结构体标签定义 handler 路由信息的辅助库

go-mir v5.0.1 发布了，v5 版本带来全新的 RESTful API 开发方式，提供媲美 gRPC 服务开发的体验，方便快捷，欢迎使用。

​Mir 是一套提供类似 gRPC 服务开发体验的快速开发 RESTful API 后端开发脚手架，适配多种 HTTP 框架，包括 Gin, Chi, Hertz, Echo, Iris, Fiber, Macaron, Mux, httprouter。

 

使用说明

• 生成样板项目

   % go install github.com/alimy/mir/mirc/v5@latest % mirc new -h create template project Usage: mirc new [flags] Flags: -d, --dst string genereted destination target directory (default ".") -h, --help help for new --mir string mir replace package name or place -p, --pkg string project's package name (default "github.com/alimy/mir-example") -s, --style string generated engine style eg: gin,chi,mux,hertz,echo,iris,fiber,fiber-v2,macaron,httprouter (default "gin") % mirc new -d example % tree example example . |-- Makefile |-- README.md |-- go.mod |-- go.sum |-- main.go |-- mirc | |-- auto | | `-- api | | |-- site.go | | |-- v1 | | | `-- site.go | | `-- v2 | | `-- site.go | |-- gen.go | `-- routes | |-- site.go | |-- v1 | | `-- site.go | `-- v2 | `-- site.go `-- servants |-- core.go |-- servants.go |-- site.go |-- site_v1.go `-- site_v2.go % cd example % make generate % make run

• RESTful API 接口定义

   // file: mirc/routes.go package routes import ( . "github.com/alimy/mir/v5" ) type LoginReq struct { Name string `json:"name"` Passwd string `json:"passwd"` } type LoginResp struct { JwtToken string `json:"jwt_token"` } // User user interface info type User struct { // 标示为 API Entry, group为v1, 带有中间件接口 Schema `mir:"v1,chain"` Login func(Post, LoginReq) LoginResp `mir:"login"` Logout func(Post) `mir:"logout"` }

• 代码生成

   // file: mirc/auto/api/routes/v1.go // Code generated by go-mir. DO NOT EDIT. // versions: // - mir v5.0.0 package v1 import ( "net/http" "github.com/alimy/mir/v5" "github.com/gin-gonic/gin" ) type _binding_ interface { Bind(*gin.Context) mir.Error } type _render_ interface { Render(*gin.Context) } type _default_ interface { Bind(*gin.Context, any) mir.Error Render(*gin.Context, any, mir.Error) } type LoginReq struct { Name string `json:"name"` Passwd string `json:"passwd"` } type LoginResp struct { JwtToken string `json:"jwt_token"` } type User interface { _default_ // Chain provide handlers chain for gin Chain() gin.HandlersChain Login(*gin.Context, *LoginReq) (*LoginResp, mir.Error) Logout(*gin.Context) mir.Error mustEmbedUnimplementedUserServant() } // RegisterUserServant register User servant to gin func RegisterUserServant(e *gin.Engine, s User) { router := e.Group("v1") // use chain for router middlewares := s.Chain() router.Use(middlewares...) // register routes info to router router.Handle("POST", "login", func(c *gin.Context) { select { case <-c.Request.Context().Done(): return default: } req := new(LoginReq) if err := s.Bind(c, req); err != nil { s.Render(c, nil, err) return } resp, err := s.Login(req) s.Render(c, resp, err) }) router.Handle("POST", "logout", func(c *gin.Context) { select { case <-c.Request.Context().Done(): return default: } s.Render(c, nil, s.Logout(c)) }) } func (UnimplementedUserServant) Chain() gin.HandlersChain { return nil } func (UnimplementedUserServant) Login(c *gin.Context, req *LoginReq) (*LoginResp, mir.Error) { return nil, mir.Errorln(http.StatusNotImplemented, http.StatusText(http.StatusNotImplemented)) } func (UnimplementedUserServant) Logout(c *gin.Context) mir.Error { return mir.Errorln(http.StatusNotImplemented, http.StatusText(http.StatusNotImplemented)) } func (UnimplementedUserServant) mustEmbedUnimplementedUserServant() {}

• 接口实现

   // file: servants/user.go package servants import ( api "github.com/alimy/mir-example/v5/mirc/auto/api/v1" "github.com/alimy/mir/v5" "github.com/gin-gonic/gin" ) type baseSrv struct{} func (baseSrv) Bind(c *gin.Context, obj any) mir.Error { if err := c.ShouldBind(obj); err != nil { mir.NewError(http.StatusBadRequest, err) } return nil } func (baseSrv) Render(c *gin.Context, data any, err mir.Error) { if err == nil { c.JSON(http.StatusOK, data) } else { c.JSON(err.StatusCode(), err.Error()) } } type userSrv struct { baseSrv api.UnimplementedUserServant // TODO: add other fields } func newUserSrv() api.User { return &userSrv{} }

• 服务注册

   // file: servants/servants.go package servants import ( api "github.com/alimy/mir-example/v5/mirc/auto/api/v1" "github.com/gin-gonic/gin" ) // RegisterServants register all the servants to gin.Engine func RegisterServants(e *gin.Engine) { api.RegisterUserServant(e, newUserSrv()) // TODO: some other servant to register }

•  paopao-ce - 一个清新文艺的微社区，提供类似 Twiter / 微博的推文分享服务；

paopao-ce 通过使用 go-mir 更好、更便捷的开发 RESTful API 服务与 gRPC 服务。