Mir is used for register handler to http router(eg: Gin, Chi, Echo, Iris, Fiber, Macaron, Mux, httprouter) depends on struct tag string info that defined in logic object's struct type field.
- Generate a simple template project
% go get github.com/alimy/mir/mirc/v2@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,echo,iris,fiber,macaron,httprouter (default "gin")
% mirc new -s gin -d mir-examples
% tree mir-examples
mir-examples
├── Makefile
├── README.md
├── go.mod
├── main.go
└── mirc
├── main.go
└── routes
├── site.go
├── v1
│ └── site.go
└── v2
└── site.go
% cd mir-examples
% make generate
- Custom route info just use struct tag. eg:
// file: mirc/routes/v1/site.go
package v1
import (
. "github.com/alimy/mir/v2"
. "github.com/alimy/mir/v2/engine"
)
func init() {
AddEntry(new(Site))
}
// Site mir's struct tag define
type Site struct {
Chain Chain `mir:"-"`
Group Group `mir:"v1"`
Index Get `mir:"/index/"`
Articles Get `mir:"/articles/:category/"`
}- Invoke mir's generator to generate interface. eg:
% cat mirc/main.go
package main
import (
"log"
. "github.com/alimy/mir/v2/core"
. "github.com/alimy/mir/v2/engine"
_ "github.com/alimy/mir/v2/examples/mirc/routes"
_ "github.com/alimy/mir/v2/examples/mirc/routes/v1"
_ "github.com/alimy/mir/v2/examples/mirc/routes/v2"
)
//go:generate go run main.go
func main() {
log.Println("generate code start")
opts := Options{
RunMode(InSerialMode),
GeneratorName(GeneratorGin),
SinkPath("./gen"),
}
if err := Generate(opts); err != nil {
log.Fatal(err)
}
log.Println("generate code finish")
}
- Then generate interface from routes info defined above
% make generate
% cat mirc/gen/api/v1/site.go
// Code generated by go-mir. DO NOT EDIT.
package v1
import (
"github.com/gin-gonic/gin"
)
type Site interface {
// Chain provide handlers chain for gin
Chain() gin.HandlersChain
Index(*gin.Context)
Articles(*gin.Context)
}
// RegisterSiteServant register Site servant to gin
func RegisterSiteServant(e *gin.Engine, s Site) {
router := e.Group("v1")
// use chain for router
middlewares := s.Chain()
router.Use(middlewares...)
// register routes info to router
router.Handle("GET", "/index/", s.Index)
router.Handle("GET", "/articles/:category/", s.Articles)
}- Implement api interface. eg:
// file: servants/site_v1.go
package servants
import (
"net/http"
"github.com/gin-gonic/gin"
api "github.com/alimy/mir/v2/examples/mirc/gen/api/v1"
)
var _ api.Site = EmptySiteV1{}
// EmptySiteV1 implement api.Site interface
type EmptySiteV1 struct{}
func (EmptySiteV1) Chain() gin.HandlersChain {
return gin.HandlersChain{gin.Logger()}
}
func (EmptySiteV1) Index(c *gin.Context) {
c.String(http.StatusOK, "get index data (v1)")
}
func (EmptySiteV1) Articles(c *gin.Context) {
c.String(http.StatusOK, "get articles data (v1)")
}- Register interface to router
package main
import (
"log"
"github.com/gin-gonic/gin"
"github.com/alimy/mir/v2/examples/mirc/gen/api"
"github.com/alimy/mir/v2/examples/mirc/gen/api/v1"
"github.com/alimy/mir/v2/examples/mirc/gen/api/v2"
"github.com/alimy/mir/v2/examples/servants"
)
func main() {
e := gin.New()
// register servants to engine
registerServants(e)
// start servant service
if err := e.Run(); err != nil {
log.Fatal(err)
}
}
func registerServants(e *gin.Engine) {
// register default group routes
api.RegisterSiteServant(e, servants.EmptySiteWithNoGroup{})
// register routes for group v1
v1.RegisterSiteServant(e, servants.EmptySiteV1{})
// register routes for group v2
v2.RegisterSiteServant(e, servants.EmptySiteV2{})
}- Build application and run
% make run-
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mir-covid19
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Zim-ms is a demo micro-service project explain how to use TarsGo and go-mir to develop micro-service.It's easy and enjoy you heart.