Routers

Path

Tango supports 4 forms path:

• static path

tg.Get("/", new(Action))
tg.Get("/static", new(Action))

• named path

tg.Get("/:name", new(Action))
tg.Get("/(:name)", new(Action))
tg.Get("/:name1/:name2", new(Action))
tg.Get("/:name1-:name2", new(Action))
tg.Get("/(:name1)sss(:name2)", new(Action))

• catch-all path

tg.Get("/*name", new(Action))
tg.Get("/ttt/*name", new(Action))
tg.Get("/sss(*name)", new(Action))

• regexp path

tg.Get("/(:name.*)", new(Action))
tg.Get("/(:name[0-9]+)", new(Action))
tg.Get("/(:name1)-(:name2[0-9]+)", new(Action))

router define

GET route

t.Route("GET", "/", new(Action))

custom method route

type Action struct {}
func (Action) MyPost() {}

t.Route("POST:MyPost", "/", new(Action))

define more route once

t.Route([]string{"GET:MyGet", "POST"}, "/", new(Action))

define more route once via map

t.Route(map[string]string{"GET":"MyGet", "POST":"MyPost"}, "/", new(Action))

Router Priority

1. Static router is always first matched before other routers even it was added last.
2. Other routers will order by it’s added sequence.

For examples:

t := tango.Classic()
t.Get("/:name", new(Others))
t.Get("/admin", new(Admin))
t.Run()

When you request /admin, the Admin’s Get method will be invoked.

t := tango.Classic()
t.Get("/:name", new(Admin))
t.Get("/*name", new(Others))
t.Run()

When you request /admin, the Admin’s Get method will be invoked. When you request /admin/ui, Others’s Get method will be invoked.

t := tango.Classic()
t.Get("/*name", new(Admin))
t.Get("/:name", new(Others))
t.Run()

Others’s Get will never be invoked, because all matched requests will be matched to Admin’s Get.

Params

The matched params can get By *Context * For named or regexp route: ctx.Param(":name") 或者 ctx.Param("name") * For catch-all route: ctx.Param("*name")

GET Params example

• Visit http://xx.com/api/1.0/users?name=111  
• Notice: name needs lower case

import "gitea.com/tango/binding"

type Getuser struct {
  	tango.JSON
	tango.Ctx
	binding.Binder
}

func (this *Getuser) Get() interface{} {
	type GetStruct struct {
		Name string
	}
	var data GetStruct
	err := this.Bind(&data)
	if err != nil {
		return map[string]interface{}{
			"res":    "no",
			"msg":    "get param error",
			"err:":   err,
			"status": 500,
		}
	}
  fmt.Println(data.Name)
  //.....
  }

  func main() {
	t := tango.Classic()
	t.Use(binding.Bind())
    t.Get("/api/1.0/users", new(Getuser))
    //......

POST Params JSON example

• curl -H “Content-Type: application/json” -X POST –Data ‘{ “Uid”: “7”,“Aim_sn”:“123456”}’ -k https://xx.cn/inapi/1.0/setaiport

type Settid struct {
  	tango.JSON
	tango.Ctx
}

func (this *Settid) Post() interface{} {
	type jsondata struct {
		Uid    string `json:"Uid"`
		Tid    string `json:"Tid"`
		Aim_sn string `json:"Aim_sn"`
	}
	var data jsondata
	err = this.DecodeJSON(&data)
	if err != nil {
		return map[string]interface{}{
			"res":    "no",
			"msg":    "DecodeJSON error",
			"err:":   err,
			"status": 500,
		}
	}
  fmt.Println(data.Uid)
  //.....
  }

  func main() {
    t := tango.Classic()
    t.Post("/inapi/1.0/setaiport", new(Settid))
    //......