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Automatic parameter binding base on go-gin

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Golang gin automatic parameter binding

• Support for RPC automatic mapping
• Support object registration
• Support annotation routing
• base on go-gin on json restful style
• implementation of parameter filtering and binding with request
• code registration simple and supports multiple ways of registration
• grpc-go bind support
• Support swagger MORE
• Support markdown/mindoc MORE

• Support call before and after deal(

  ginrpc.WithBeforeAfter

  )

• DEMO

Installing

• go mod:

  go get -u github.com/xxjwxc/[email protected]
  

API details

Three interface modes are supported

• func(*gin.Context) // go-gin Raw interface

func(*api.Context) // Custom context type

• func(*api.Context,req) // Custom context type,with request

func(api.Context,req)

• func(gin.Context,req) // go-gin context,with request

func(*gin.Context,req)

• func(gin.Context,req)(*resp,error) // go-gin context,with request,return parameter and error ==> grpc-go

func(*gin.Context,req)(resp,error)

一. Parameter auto binding,Object registration (annotation routing)

Initialization project (this project is named after

gmsec

)

``` go mod init gmsec ```

coding more>>

package main

import (
    "fmt"
    "net/http"
_ "gmsec/routers" // Debug mode requires adding [mod] / routes to register annotation routes.debug模式需要添加[mod]/routers 注册注解路由
"github.com/xxjwxc/public/mydoc/myswagger" // swagger 支持

"github.com/gin-gonic/gin"
"github.com/xxjwxc/ginrpc"
"github.com/xxjwxc/ginrpc/api"
)
type ReqTest struct {
    Access_token string json:"access_token"
    UserName     string json:"user_name" binding:"required" // With verification mode
    Password     string json:"password"
}
// Hello ...
type Hello struct {
}
// Hello Annotated route (bese on beego way)
// @Router /block [post,get]
func (s *Hello) Hello(c *api.Context, req *ReqTest) {
    fmt.Println(req)
    c.JSON(http.StatusOK, "ok")
}
// Hello2 Route without annotation (the parameter is 2 default post)
func (s *Hello) Hello2(c *gin.Context, req ReqTest) {
    fmt.Println(req)
    c.JSON(http.StatusOK, "ok")
}
// grpc-go
// with request,return parameter and error
// TestFun6 Route without annotation (the parameter is 2 default post)
func TestFun6(c *gin.Context, req ReqTest) (*ReqTest, error) {
    fmt.Println(req)
    //c.JSON(http.StatusOK, req)
    return &req, nil
}
func main() {
// swagger
myswagger.SetHost("https://localhost:8080")
myswagger.SetBasePath("gmsec")
myswagger.SetSchemes(true, false)
// -----end --
base := ginrpc.New()
router := gin.Default() // or router :=  gin.Default().Group("/xxjwxc")
base.Register(router, new(Hello)) // object register like(go-micro)
router.POST("/test6", base.HandlerFunc(TestFun6))                            // function register
base.RegisterHandlerFunc(router, []string{"post", "get"}, "/test", TestFun6) 
router.Run(":8080")
}

- Annotation routing related instructions

// @Router /block [post,get]
@Router tag  
/block router 
[post,get] method 

#### Note: if there is no annotation route in the object function, the system will add annotation route by default. Post mode: with req (2 parameters (CTX, req)), get mode is a parameter (CTX)

1. Annotation route will automatically create

[mod]/routes/gen_router.go

file, which needs to be added when calling:

```
_ "[mod]/routers" // Debug mode requires adding [mod] / routes to register annotation routes

```
By default, the [gen_router. Data] file will also be generated in the root directory of the project (keep this file, and you can embed it without adding the above code)

2. way of annotation route :

more to saying  [gmsec](https://github.com/gmsec/gmsec)

3. Parameter description

ginrpc.WithCtx ： Set custom context

ginrpc.WithDebug(true) : Set debug mode
ginrpc.WithOutDoc(true) : output markdown/swagger api doc
ginrpc.WithBigCamel(true) : Set big camel standard (false is web mode, _, lowercase)
ginrpc.WithBeforeAfter(&ginrpc.DefaultGinBeforeAfter{}) : Before After call
more>>

4. Execute curl to automatically bind parameters. See the results directly

  curl 'http://127.0.0.1:8080/xxjwxc/block' -H 'Content-Type: application/json' -d '{"access_token":"111", "user_name":"222", "password":"333"}'

  curl 'http://127.0.0.1:8080/xxjwxc/hello.hello2' -H 'Content-Type: application/json' -d '{"access_token":"111", "user_name":"222", "password":"333"}'

二. swagger/markdown/mindoc Document generation description

    ginrpc.WithOutDoc(true) : output markdown/swagger

1.For object registration 'ginrpc. Register' mode, document export is supported

2.Export supports annotation routing, Parameter annotation and default value (

tag '.

default')

3.Default export path:(

/docs/swagger/swagger.json

,

/docs/markdown

)

4 struct demo

type ReqTest struct {
    AccessToken string `json:"access_token"`
    UserName    string `json:"user_name" binding:"required"` // 带校验方式
    Password    string `json:"password"`
}

• more >>>

三. Support to call Middleware

• using

  ginrpc.WithBeforeAfter(&ginrpc.DefaultGinBeforeAfter{})

• You can also implement functions (single types) on objects

  go
  // GinBeforeAfter Execute middleware before and after the object call (support adding the object separately from the object in total)
  type GinBeforeAfter interface {
      GinBefore(req *GinBeforeAfterInfo) bool
      GinAfter(req *GinBeforeAfterInfo) bool
  }
  

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