gin

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README

#Gin Web Framework Build Status Coverage Status

GoDoc

Gin is a web framework written in Golang. It features a martini-like API with much better performance, up to 40 times faster thanks to httprouter. If you need performance and good productivity, you will love Gin.

Gin console logger

$ cat test.go

package main

import (
	"net/http"
	"github.com/gin-gonic/gin"
)

func main() {
	router := gin.Default()
	router.GET("/", func(c *gin.Context) {
		c.String(http.StatusOK, "hello world")
	})
	router.GET("/ping", func(c *gin.Context) {
		c.String(http.StatusOK, "pong")
	})
	router.POST("/submit", func(c *gin.Context) {
		c.String(http.StatusUnauthorized, "not authorized")
	})
	router.PUT("/error", func(c *gin.Context) {
		c.String(http.StatusInternalServerError, "an error happened :(")
	})
	router.Run(":8080")
}

##Gin is new, will it be supported?

Yes, Gin is an internal tool of Manu and Javi for many of our projects/start-ups. We developed it and we are going to continue using and improve it.

##Roadmap for v1.0

  • Ask our designer for a cool logo
  • Add tons of unit tests
  • Add internal benchmarks suite
  • More powerful validation API
  • Improve documentation
  • Add Swagger support
  • Stable API
  • Improve logging system
  • Improve JSON/XML validation using bindings
  • Improve XML support
  • Flexible rendering system
  • Add more cool middlewares, for example redis caching (this also helps developers to understand the framework).
  • Continuous integration
  • Performance improments, reduce allocation and garbage collection overhead
  • Fix bugs

Start using it

Obviously, you need to have Git and Go already installed to run Gin.
Run this in your terminal

go get github.com/gin-gonic/gin

Then import it in your Go code:

import "github.com/gin-gonic/gin"

##API Examples

Create most basic PING/PONG HTTP endpoint
package main

import (
	"net/http"
	"github.com/gin-gonic/gin"
)

func main() {
	r := gin.Default()
	r.GET("/ping", func(c *gin.Context) {
		c.String(http.StatusOK, "pong")
	})

	// Listen and serve on 0.0.0.0:8080
	r.Run(":8080")
}
Using GET, POST, PUT, PATCH, DELETE and OPTIONS
func main() {
	// Creates a gin router + logger and recovery (crash-free) middlewares
	r := gin.Default()

	r.GET("/someGet", getting)
	r.POST("/somePost", posting)
	r.PUT("/somePut", putting)
	r.DELETE("/someDelete", deleting)
	r.PATCH("/somePatch", patching)
	r.HEAD("/someHead", head)
	r.OPTIONS("/someOptions", options)

	// Listen and server on 0.0.0.0:8080
	r.Run(":8080")
}
Parameters in path
func main() {
	r := gin.Default()
	
	// This handler will match /user/john but will not match neither /user/ or /user
	r.GET("/user/:name", func(c *gin.Context) {
		name := c.Params.ByName("name")
		message := "Hello "+name
		c.String(http.StatusOK, message)
	})

	// However, this one will match /user/john/ and also /user/john/send
	// If no other routers match /user/john, it will redirect to /user/join/
	r.GET("/user/:name/*action", func(c *gin.Context) {
		name := c.Params.ByName("name")
		action := c.Params.ByName("action")
		message := name + " is " + action
		c.String(http.StatusOK, message)
	})
	
	// Listen and server on 0.0.0.0:8080
	r.Run(":8080")
}

###Form parameters

func main() {
	r := gin.Default()
	
	// This will respond to urls like search?firstname=Jane&lastname=Doe
	r.GET("/search", func(c *gin.Context) {
		// You need to call ParseForm() on the request to receive url and form params first
		c.Request.ParseForm()
		
		firstname := c.Request.Form.Get("firstname")
		lastname := c.Request.Form.Get("lastname")

		message := "Hello "+ firstname + lastname
		c.String(http.StatusOK, message)
	})
	r.Run(":8080")
}

###Multipart Form

package main

import (
	"github.com/gin-gonic/gin"
	"github.com/gin-gonic/gin/binding"
)

type LoginForm struct {
	User     string `form:"user" binding:"required"`
	Password string `form:"password" binding:"required"`
}

func main() {

	r := gin.Default()

	r.POST("/login", func(c *gin.Context) {

		var form LoginForm
		c.BindWith(&form, binding.MultipartForm)

		if form.User == "user" && form.Password == "password" {
			c.JSON(200, gin.H{"status": "you are logged in"})
		} else {
			c.JSON(401, gin.H{"status": "unauthorized"})
		}

	})

	r.Run(":8080")

}

Test it with:

$ curl -v --form user=user --form password=password http://localhost:8080/login
Grouping routes
func main() {
	r := gin.Default()

	// Simple group: v1
	v1 := r.Group("/v1")
	{
		v1.POST("/login", loginEndpoint)
		v1.POST("/submit", submitEndpoint)
		v1.POST("/read", readEndpoint)
	}

	// Simple group: v2
	v2 := r.Group("/v2")
	{
		v2.POST("/login", loginEndpoint)
		v2.POST("/submit", submitEndpoint)
		v2.POST("/read", readEndpoint)
	}

	// Listen and server on 0.0.0.0:8080
	r.Run(":8080")
}
Blank Gin without middlewares by default

Use

r := gin.New()

instead of

r := gin.Default()
Using middlewares
func main() {
	// Creates a router without any middleware by default
	r := gin.New()

	// Global middlewares
	r.Use(gin.Logger())
	r.Use(gin.Recovery())

	// Per route middlewares, you can add as many as you desire.
	r.GET("/benchmark", MyBenchLogger(), benchEndpoint)

	// Authorization group
	// authorized := r.Group("/", AuthRequired())
	// exactly the same than:
	authorized := r.Group("/")
	// per group middlewares! in this case we use the custom created
	// AuthRequired() middleware just in the "authorized" group.
	authorized.Use(AuthRequired())
	{
		authorized.POST("/login", loginEndpoint)
		authorized.POST("/submit", submitEndpoint)
		authorized.POST("/read", readEndpoint)

		// nested group
		testing := authorized.Group("testing")
		testing.GET("/analytics", analyticsEndpoint)
	}

	// Listen and server on 0.0.0.0:8080
	r.Run(":8080")
}
Model binding and validation

To bind a request body into a type, use model binding. We currently support binding of JSON, XML and standard form values (foo=bar&boo=baz).

Note that you need to set the corresponding binding tag on all fields you want to bind. For example, when binding from JSON, set json:"fieldname".

When using the Bind-method, Gin tries to infer the binder depending on the Content-Type header. If you are sure what you are binding, you can use BindWith.

You can also specify that specific fields are required. If a field is decorated with binding:"required" and has a empty value when binding, the current request will fail with an error.

// Binding from JSON
type LoginJSON struct {
	User     string `json:"user" binding:"required"`
	Password string `json:"password" binding:"required"`
}

// Binding from form values
type LoginForm struct {
    User     string `form:"user" binding:"required"`
    Password string `form:"password" binding:"required"`   
}

func main() {
	r := gin.Default()

    // Example for binding JSON ({"user": "manu", "password": "123"})
	r.POST("/loginJSON", func(c *gin.Context) {
		var json LoginJSON

        c.Bind(&json) // This will infer what binder to use depending on the content-type header.
        if json.User == "manu" && json.Password == "123" {
            c.JSON(http.StatusOK, gin.H{"status": "you are logged in"})
        } else {
            c.JSON(http.StatusUnauthorized, gin.H{"status": "unauthorized"})
        }
	})

    // Example for binding a HTML form (user=manu&password=123)
    r.POST("/loginHTML", func(c *gin.Context) {
        var form LoginForm

        c.BindWith(&form, binding.Form) // You can also specify which binder to use. We support binding.Form, binding.JSON and binding.XML.
        if form.User == "manu" && form.Password == "123" {
            c.JSON(http.StatusOK, gin.H{"status": "you are logged in"})
        } else {
            c.JSON(http.StatusUnauthorized, gin.H{"status": "unauthorized"})
        }
    })

	// Listen and server on 0.0.0.0:8080
	r.Run(":8080")
}
XML and JSON rendering
func main() {
	r := gin.Default()

	// gin.H is a shortcut for map[string]interface{}
	r.GET("/someJSON", func(c *gin.Context) {
		c.JSON(http.StatusOK, gin.H{"message": "hey", "status": http.StatusOK})
	})

	r.GET("/moreJSON", func(c *gin.Context) {
		// You also can use a struct
		var msg struct {
			Name    string `json:"user"`
			Message string
			Number  int
		}
		msg.Name = "Lena"
		msg.Message = "hey"
		msg.Number = 123
		// Note that msg.Name becomes "user" in the JSON
		// Will output  :   {"user": "Lena", "Message": "hey", "Number": 123}
		c.JSON(http.StatusOK, msg)
	})

	r.GET("/someXML", func(c *gin.Context) {
		c.XML(http.StatusOK, gin.H{"message": "hey", "status": http.StatusOK})
	})

	// Listen and server on 0.0.0.0:8080
	r.Run(":8080")
}

####Serving static files Use Engine.ServeFiles(path string, root http.FileSystem):

func main() {
    r := gin.Default()
    r.Static("/assets", "./assets")

    // Listen and server on 0.0.0.0:8080
    r.Run(":8080")
}

Use the following example to serve static files at top level route of your domain. Files are being served from directory ./html.

r := gin.Default()
r.Use(static.Serve("/", static.LocalFile("html", false)))

Note: this will use httpNotFound instead of the Router's NotFound handler.

####HTML rendering

Using LoadHTMLTemplates()

func main() {
	r := gin.Default()
	r.LoadHTMLGlob("templates/*")
	r.GET("/index", func(c *gin.Context) {
		obj := gin.H{"title": "Main website"}
		c.HTML(http.StatusOK, "index.tmpl", obj)
	})

	// Listen and server on 0.0.0.0:8080
	r.Run(":8080")
}

<h1>
	{{ .title }}
</h1>

You can also use your own html template render

import "html/template"

func main() {
	r := gin.Default()
	html := template.Must(template.ParseFiles("file1", "file2"))
	r.SetHTMLTemplate(html)

	// Listen and server on 0.0.0.0:8080
	r.Run(":8080")
}

#####Using layout files with templates

var baseTemplate = "main.tmpl"

r.GET("/", func(c *gin.Context) {
    r.SetHTMLTemplate(template.Must(template.ParseFiles(baseTemplate, "whatever.tmpl")))
    c.HTML(200, "base", data)
})

main.tmpl

{{define "base"}}
<html>
    <head></head>
    <body>
        {{template "content" .}}
    </body>
</html>
{{end}}

whatever.tmpl

{{define "content"}}
<h1>Hello World!</h1>
{{end}}
Redirects

Issuing a HTTP redirect is easy:

r.GET("/test", func(c *gin.Context) {
	c.Redirect(http.StatusMovedPermanently, "http://www.google.com/")
})

Both internal and external locations are supported.

Custom Middlewares
func Logger() gin.HandlerFunc {
	return func(c *gin.Context) {
		t := time.Now()

		// Set example variable
		c.Set("example", "12345")

		// before request

		c.Next()

		// after request
		latency := time.Since(t)
		log.Print(latency)

		// access the status we are sending
		status := c.Writer.Status()
		log.Println(status)
	}
}

func main() {
	r := gin.New()
	r.Use(Logger())

	r.GET("/test", func(c *gin.Context) {
		example := c.MustGet("example").(string)

		// it would print: "12345"
		log.Println(example)
	})

	// Listen and server on 0.0.0.0:8080
	r.Run(":8080")
}
Using BasicAuth() middleware
// simulate some private data
var secrets = gin.H{
	"foo":    gin.H{"email": "foo@bar.com", "phone": "123433"},
	"austin": gin.H{"email": "austin@example.com", "phone": "666"},
	"lena":   gin.H{"email": "lena@guapa.com", "phone": "523443"},
}

func main() {
	r := gin.Default()

	// Group using gin.BasicAuth() middleware
	// gin.Accounts is a shortcut for map[string]string
	authorized := r.Group("/admin", gin.BasicAuth(gin.Accounts{
		"foo":    "bar",
		"austin": "1234",
		"lena":   "hello2",
		"manu":   "4321",
	}))

	// /admin/secrets endpoint
	// hit "localhost:8080/admin/secrets
	authorized.GET("/secrets", func(c *gin.Context) {
		// get user, it was setted by the BasicAuth middleware
		user := c.MustGet(gin.AuthUserKey).(string)
		if secret, ok := secrets[user]; ok {
			c.JSON(http.StatusOK, gin.H{"user": user, "secret": secret})
		} else {
			c.JSON(http.StatusOK, gin.H{"user": user, "secret": "NO SECRET :("})
		}
	})

	// Listen and server on 0.0.0.0:8080
	r.Run(":8080")
}
Goroutines inside a middleware

When starting inside a middleware or handler, you SHOULD NOT use the original context inside it, you have to use a read-only copy.

func main() {
	r := gin.Default()

	r.GET("/long_async", func(c *gin.Context) {
		// create copy to be used inside the goroutine
		c_cp := c.Copy()
		go func() {
			// simulate a long task with time.Sleep(). 5 seconds
			time.Sleep(5 * time.Second)

			// note than you are using the copied context "c_cp", IMPORTANT
			log.Println("Done! in path " + c_cp.Request.URL.Path)
		}()
	})


	r.GET("/long_sync", func(c *gin.Context) {
		// simulate a long task with time.Sleep(). 5 seconds
		time.Sleep(5 * time.Second)

		// since we are NOT using a goroutine, we do not have to copy the context
		log.Println("Done! in path " + c.Request.URL.Path)
	})

    // Listen and server on 0.0.0.0:8080
    r.Run(":8080")
}
Custom HTTP configuration

Use http.ListenAndServe() directly, like this:

func main() {
	router := gin.Default()
	http.ListenAndServe(":8080", router)
}

or

func main() {
	router := gin.Default()

	s := &http.Server{
		Addr:           ":8080",
		Handler:        router,
		ReadTimeout:    10 * time.Second,
		WriteTimeout:   10 * time.Second,
		MaxHeaderBytes: 1 << 20,
	}
	s.ListenAndServe()
}

Documentation

Index

Constants

View Source 
const (
	MIMEJSON              = binding.MIMEJSON
	MIMEHTML              = binding.MIMEHTML
	MIMEXML               = binding.MIMEXML
	MIMEXML2              = binding.MIMEXML2
	MIMEPlain             = binding.MIMEPlain
	MIMEPOSTForm          = binding.MIMEPOSTForm
	MIMEMultipartPOSTForm = binding.MIMEMultipartPOSTForm
)
View Source 
const (
	DebugMode   string = "debug"
	ReleaseMode string = "release"
	TestMode    string = "test"
)
View Source 
const AbortIndex = math.MaxInt8 / 2
View Source 
const (
	AuthUserKey = "user"
)
View Source 
const ENV_GIN_MODE = "GIN_MODE"
View Source 
const Version = "v1.0rc1"

Variables

View Source 
var DefaultWriter io.Writer = colorable.NewColorableStdout()

Functions

func CleanPath 

func CleanPath(p string) string

CleanPath is the URL version of path.Clean, it returns a canonical URL path for p, eliminating . and .. elements.

The following rules are applied iteratively until no further processing can be done:

  1. Replace multiple slashes with a single slash.
  2. Eliminate each . path name element (the current directory).
  3. Eliminate each inner .. path name element (the parent directory) along with the non-.. element that precedes it.
  4. Eliminate .. elements that begin a rooted path: that is, replace "/.." by "/" at the beginning of a path.

If the result of this process is an empty string, "/" is returned

func Dir 

func Dir(root string, listDirectory bool) http.FileSystem

func IsDebugging 

func IsDebugging() bool

func Mode 

func Mode() string

func SetMode 

func SetMode(value string)

Types

type Accounts 

type Accounts map[string]string

type Context 

type Context struct {
	Request *http.Request
	Writer  ResponseWriter

	Params Params

	Keys     map[string]interface{}
	Errors   errorMsgs
	Accepted []string
	// contains filtered or unexported fields
}

Context is the most important part of gin. It allows us to pass variables between middleware, manage the flow, validate the JSON of a request and render a JSON response for example.

func (*Context) Abort 

func (c *Context) Abort()

Forces the system to not continue calling the pending handlers in the chain.

func (*Context) AbortWithError 

func (c *Context) AbortWithError(code int, err error) *Error

func (*Context) AbortWithStatus 

func (c *Context) AbortWithStatus(code int)

AbortWithStatus is the same as Abort but also writes the specified response status code. For example, the first handler checks if the request is authorized. If it's not, context.AbortWithStatus(401) should be called.

func (*Context) Bind 

func (c *Context) Bind(obj interface{}) error

This function checks the Content-Type to select a binding engine automatically, Depending the "Content-Type" header different bindings are used: "application/json" --> JSON binding "application/xml" --> XML binding else --> returns an error if Parses the request's body as JSON if Content-Type == "application/json" using JSON or XML as a JSON input. It decodes the json payload into the struct specified as a pointer.Like ParseBody() but this method also writes a 400 error if the json is not valid.

func (*Context) BindJSON 

func (c *Context) BindJSON(obj interface{}) error

func (*Context) BindWith 

func (c *Context) BindWith(obj interface{}, b binding.Binding) error

func (*Context) ClientIP 

func (c *Context) ClientIP() string

func (*Context) ContentType 

func (c *Context) ContentType() string

func (*Context) Copy 

func (c *Context) Copy() *Context

func (*Context) Data 

func (c *Context) Data(code int, contentType string, data []byte)

Writes some data into the body stream and updates the HTTP code.

func (*Context) Deadline 

func (c *Context) Deadline() (deadline time.Time, ok bool)

func (*Context) DefaultFormValue 

func (c *Context) DefaultFormValue(key, defaultValue string) string

func (*Context) DefaultParamValue 

func (c *Context) DefaultParamValue(key, defaultValue string) string

func (*Context) DefaultPostFormValue 

func (c *Context) DefaultPostFormValue(key, defaultValue string) string

func (*Context) Done 

func (c *Context) Done() <-chan struct{}

func (*Context) Err 

func (c *Context) Err() error

func (*Context) Error 

func (c *Context) Error(err error) *Error

Attaches an error to the current context. The error is pushed to a list of errors. It's a good idea to call Error for each error that occurred during the resolution of a request. A middleware can be used to collect all the errors and push them to a database together, print a log, or append it in the HTTP response.

func (*Context) File 

func (c *Context) File(filepath string)

Writes the specified file into the body stream

func (*Context) FormValue 

func (c *Context) FormValue(key string) (va string)

* Shortcut for c.Request.FormValue(key)

func (*Context) Get 

func (c *Context) Get(key string) (value interface{}, exists bool)

Get returns the value for the given key or an error if the key does not exist.

func (*Context) HTML 

func (c *Context) HTML(code int, name string, obj interface{})

Renders the HTTP template specified by its file name. It also updates the HTTP code and sets the Content-Type as "text/html". See http://golang.org/doc/articles/wiki/

func (*Context) Header 

func (c *Context) Header(key, value string)

func (*Context) IndentedJSON 

func (c *Context) IndentedJSON(code int, obj interface{})

func (*Context) IsAborted 

func (c *Context) IsAborted() bool

func (*Context) JSON 

func (c *Context) JSON(code int, obj interface{})

Serializes the given struct as JSON into the response body in a fast and efficient way. It also sets the Content-Type as "application/json".

func (*Context) MustGet 

func (c *Context) MustGet(key string) interface{}

MustGet returns the value for the given key or panics if the value doesn't exist.

func (*Context) Negotiate 

func (c *Context) Negotiate(code int, config Negotiate)

func (*Context) NegotiateFormat 

func (c *Context) NegotiateFormat(offered ...string) string

func (*Context) Next 

func (c *Context) Next()

Next should be used only in the middlewares. It executes the pending handlers in the chain inside the calling handler. See example in github.

func (*Context) ParamValue 

func (c *Context) ParamValue(key string) (va string)

* Shortcut for c.Params.ByName(key)

func (*Context) PostFormValue 

func (c *Context) PostFormValue(key string) (va string)

* Shortcut for c.Request.PostFormValue(key)

func (*Context) Redirect 

func (c *Context) Redirect(code int, location string)

Returns a HTTP redirect to the specific location.

func (*Context) Render 

func (c *Context) Render(code int, r render.Render)

func (*Context) SSEvent 

func (c *Context) SSEvent(name string, message interface{})

func (*Context) Set 

func (c *Context) Set(key string, value interface{})

Sets a new pair key/value just for the specified context. It also lazy initializes the hashmap.

func (*Context) SetAccepted 

func (c *Context) SetAccepted(formats ...string)

func (*Context) Stream 

func (c *Context) Stream(step func(w io.Writer) bool)

func (*Context) String 

func (c *Context) String(code int, format string, values ...interface{})

Writes the given string into the response body and sets the Content-Type to "text/plain".

func (*Context) Value 

func (c *Context) Value(key interface{}) interface{}

func (*Context) XML 

func (c *Context) XML(code int, obj interface{})

Serializes the given struct as XML into the response body in a fast and efficient way. It also sets the Content-Type as "application/xml".

type Engine 

type Engine struct {
	RouterGroup
	HTMLRender render.HTMLRender

	// Enables automatic redirection if the current route can't be matched but a
	// handler for the path with (without) the trailing slash exists.
	// For example if /foo/ is requested but a route only exists for /foo, the
	// client is redirected to /foo with http status code 301 for GET requests
	// and 307 for all other request methods.
	RedirectTrailingSlash bool

	// If enabled, the router tries to fix the current request path, if no
	// handle is registered for it.
	// First superfluous path elements like ../ or // are removed.
	// Afterwards the router does a case-insensitive lookup of the cleaned path.
	// If a handle can be found for this route, the router makes a redirection
	// to the corrected path with status code 301 for GET requests and 307 for
	// all other request methods.
	// For example /FOO and /..//Foo could be redirected to /foo.
	// RedirectTrailingSlash is independent of this option.
	RedirectFixedPath bool

	// If enabled, the router checks if another method is allowed for the
	// current route, if the current request can not be routed.
	// If this is the case, the request is answered with 'Method Not Allowed'
	// and HTTP status code 405.
	// If no other Method is allowed, the request is delegated to the NotFound
	// handler.
	HandleMethodNotAllowed bool
	// contains filtered or unexported fields
}

Represents the web framework, it wraps the blazing fast httprouter multiplexer and a list of global middlewares.

func Default 

func Default() *Engine

Returns a Engine instance with the Logger and Recovery already attached.

func New 

func New() *Engine

Returns a new blank Engine instance without any middleware attached. The most basic configuration

func (*Engine) LoadHTMLFiles 

func (engine *Engine) LoadHTMLFiles(files ...string)

func (*Engine) LoadHTMLGlob 

func (engine *Engine) LoadHTMLGlob(pattern string)

func (*Engine) NoMethod 

func (engine *Engine) NoMethod(handlers ...HandlerFunc)

func (*Engine) NoRoute 

func (engine *Engine) NoRoute(handlers ...HandlerFunc)

Adds handlers for NoRoute. It return a 404 code by default.

func (*Engine) Run 

func (engine *Engine) Run(addr string) (err error)

func (*Engine) RunTLS 

func (engine *Engine) RunTLS(addr string, cert string, key string) (err error)

func (*Engine) RunUnix 

func (engine *Engine) RunUnix(file string) (err error)

func (*Engine) ServeHTTP 

func (engine *Engine) ServeHTTP(w http.ResponseWriter, req *http.Request)

ServeHTTP makes the router implement the http.Handler interface.

func (*Engine) SetHTMLTemplate 

func (engine *Engine) SetHTMLTemplate(templ *template.Template)

func (*Engine) Use 

func (engine *Engine) Use(middlewares ...HandlerFunc)

type Error 

type Error struct {
	Err  error
	Type ErrorType
	Meta interface{}
}

func (*Error) Error 

func (msg *Error) Error() string

func (*Error) JSON 

func (msg *Error) JSON() interface{}

func (*Error) MarshalJSON 

func (msg *Error) MarshalJSON() ([]byte, error)

func (*Error) SetMeta 

func (msg *Error) SetMeta(data interface{}) *Error

func (*Error) SetType 

func (msg *Error) SetType(flags ErrorType) *Error

type ErrorType 

type ErrorType uint64
const (
	ErrorTypeBind    ErrorType = 1 << 63 // used when c.Bind() fails
	ErrorTypeRender  ErrorType = 1 << 62 // used when c.Render() fails
	ErrorTypePrivate ErrorType = 1 << 0
	ErrorTypePublic  ErrorType = 1 << 1

	ErrorTypeAny ErrorType = 1<<64 - 1
	ErrorTypeNu            = 2
)

type H 

type H map[string]interface{}

func (H) MarshalXML 

func (h H) MarshalXML(e *xml.Encoder, start xml.StartElement) error

Allows type H to be used with xml.Marshal

type HandlerFunc 

type HandlerFunc func(*Context)

func BasicAuth 

func BasicAuth(accounts Accounts) HandlerFunc

Implements a basic Basic HTTP Authorization. It takes as argument a map[string]string where the key is the user name and the value is the password.

func BasicAuthForRealm 

func BasicAuthForRealm(accounts Accounts, realm string) HandlerFunc

Implements a basic Basic HTTP Authorization. It takes as arguments a map[string]string where the key is the user name and the value is the password, as well as the name of the Realm (see http://tools.ietf.org/html/rfc2617#section-1.2)

func ErrorLogger 

func ErrorLogger() HandlerFunc

func ErrorLoggerT 

func ErrorLoggerT(typ ErrorType) HandlerFunc

func Logger 

func Logger() HandlerFunc

func LoggerWithWriter 

func LoggerWithWriter(out io.Writer) HandlerFunc

func Recovery 

func Recovery() HandlerFunc

Recovery returns a middleware that recovers from any panics and writes a 500 if there was one.

func RecoveryWithWriter 

func RecoveryWithWriter(out io.Writer) HandlerFunc

func WrapF 

func WrapF(f http.HandlerFunc) HandlerFunc

func WrapH 

func WrapH(h http.Handler) HandlerFunc

type HandlersChain 

type HandlersChain []HandlerFunc

type Negotiate 

type Negotiate struct {
	Offered  []string
	HTMLName string
	HTMLData interface{}
	JSONData interface{}
	XMLData  interface{}
	Data     interface{}
}

type Param 

type Param struct {
	Key   string
	Value string
}

Param is a single URL parameter, consisting of a key and a value.

type Params 

type Params []Param

Params is a Param-slice, as returned by the router. The slice is ordered, the first URL parameter is also the first slice value. It is therefore safe to read values by the index.

func (Params) ByName 

func (ps Params) ByName(name string) (va string)

func (Params) Get 

func (ps Params) Get(name string) (string, bool)

ByName returns the value of the first Param which key matches the given name. If no matching Param is found, an empty string is returned.

type ResponseWriter 

type ResponseWriter interface {
	http.ResponseWriter
	http.Hijacker
	http.Flusher
	http.CloseNotifier

	Status() int
	Size() int
	Written() bool
	WriteHeaderNow()
}

type RouterGroup 

type RouterGroup struct {
	Handlers HandlersChain
	BasePath string
	// contains filtered or unexported fields
}

Used internally to configure router, a RouterGroup is associated with a prefix and an array of handlers (middlewares)

func (*RouterGroup) Any 

func (group *RouterGroup) Any(relativePath string, handlers ...HandlerFunc)

func (*RouterGroup) DELETE 

func (group *RouterGroup) DELETE(relativePath string, handlers ...HandlerFunc)

DELETE is a shortcut for router.Handle("DELETE", path, handle)

func (*RouterGroup) GET 

func (group *RouterGroup) GET(relativePath string, handlers ...HandlerFunc)

GET is a shortcut for router.Handle("GET", path, handle)

func (*RouterGroup) Group 

func (group *RouterGroup) Group(relativePath string, handlers ...HandlerFunc) *RouterGroup

Creates a new router group. You should add all the routes that have common middlwares or the same path prefix. For example, all the routes that use a common middlware for authorization could be grouped.

func (*RouterGroup) HEAD 

func (group *RouterGroup) HEAD(relativePath string, handlers ...HandlerFunc)

HEAD is a shortcut for router.Handle("HEAD", path, handle)

func (*RouterGroup) Handle 

func (group *RouterGroup) Handle(httpMethod, relativePath string, handlers ...HandlerFunc)

func (*RouterGroup) OPTIONS 

func (group *RouterGroup) OPTIONS(relativePath string, handlers ...HandlerFunc)

OPTIONS is a shortcut for router.Handle("OPTIONS", path, handle)

func (*RouterGroup) PATCH 

func (group *RouterGroup) PATCH(relativePath string, handlers ...HandlerFunc)

PATCH is a shortcut for router.Handle("PATCH", path, handle)

func (*RouterGroup) POST 

func (group *RouterGroup) POST(relativePath string, handlers ...HandlerFunc)

POST is a shortcut for router.Handle("POST", path, handle)

func (*RouterGroup) PUT 

func (group *RouterGroup) PUT(relativePath string, handlers ...HandlerFunc)

PUT is a shortcut for router.Handle("PUT", path, handle)

func (*RouterGroup) Static 

func (group *RouterGroup) Static(relativePath, root string)

Static serves files from the given file system root. Internally a http.FileServer is used, therefore http.NotFound is used instead of the Router's NotFound handler. To use the operating system's file system implementation, use : 

router.Static("/static", "/var/www")

func (*RouterGroup) StaticFS 

func (group *RouterGroup) StaticFS(relativePath string, fs http.FileSystem)

func (*RouterGroup) StaticFile 

func (group *RouterGroup) StaticFile(relativePath, filepath string)

func (*RouterGroup) Use 

func (group *RouterGroup) Use(middlewares ...HandlerFunc)

Adds middlewares to the group, see example code in github.

Source Files

View all Source files

Directories

Path Synopsis
examples
app-engine
basic
realtime-advanced
realtime-chat

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