echo

package
v0.1.2 Latest Latest
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 Go to latest Published: Sep 9, 2015 License: MIT, MIT Imports: 18 Imported by: 6

README

Echo GoDoc Build Status Coverage Status

Echo is a fast HTTP router (zero memory allocation) and micro web framework in Go.

Features

  • Fast HTTP router which smartly prioritize routes.
  • Extensible middleware/handler, supports:
    • Middleware
      • echo.MiddlewareFunc
      • func(echo.HandlerFunc) echo.HandlerFunc
      • echo.HandlerFunc
      • func(*echo.Context) error
      • func(http.Handler) http.Handler
      • http.Handler
      • http.HandlerFunc
      • func(http.ResponseWriter, *http.Request)
    • Handler
      • echo.HandlerFunc
      • func(*echo.Context) error
      • http.Handler
      • http.HandlerFunc
      • func(http.ResponseWriter, *http.Request)
  • Sub routing with groups.
  • Handy encoding/decoding functions.
  • Serve static files, including index.
  • Built-in support for WebSocket.
  • Centralized HTTP error handling.
  • Use a customized function to bind request body to a Go type.
  • Register a view render so you can use any HTML template engine.

Benchmark

Based on [julienschmidt/go-http-routing-benchmark] (https://github.com/vishr/go-http-routing-benchmark), April 1, 2015

Echo: 42728 ns/op, 0 B/op, 0 allocs/op

BenchmarkAce_GithubAll	   	   20000	     65328 ns/op	   13792 B/op	     167 allocs/op
BenchmarkBear_GithubAll	   	   10000	    241852 ns/op	   79952 B/op	     943 allocs/op
BenchmarkBeego_GithubAll	    3000	    458234 ns/op	  146272 B/op	    2092 allocs/op
BenchmarkBone_GithubAll	    	1000	   1923508 ns/op	  648016 B/op	    8119 allocs/op
BenchmarkDenco_GithubAll	   20000	     81294 ns/op	   20224 B/op	     167 allocs/op
BenchmarkEcho_GithubAll	   	   30000	     42728 ns/op	       0 B/op	       0 allocs/op
BenchmarkGin_GithubAll	   	   20000	     69373 ns/op	   13792 B/op	     167 allocs/op
BenchmarkGocraftWeb_GithubAll  10000	    370978 ns/op	  133280 B/op	    1889 allocs/op
BenchmarkGoji_GithubAll	    	3000	    542766 ns/op	   56113 B/op	     334 allocs/op
BenchmarkGoJsonRest_GithubAll	5000	    452551 ns/op	  135995 B/op	    2940 allocs/op
BenchmarkGoRestful_GithubAll	 200	   9500204 ns/op	  707604 B/op	    7558 allocs/op
BenchmarkGorillaMux_GithubAll	 200	   6770545 ns/op	  153137 B/op	    1791 allocs/op
BenchmarkHttpRouter_GithubAll  30000	     56097 ns/op	   13792 B/op	     167 allocs/op
BenchmarkHttpTreeMux_GithubAll 10000	    143175 ns/op	   56112 B/op	     334 allocs/op
BenchmarkKocha_GithubAll	   10000	    147959 ns/op	   23304 B/op	     843 allocs/op
BenchmarkMacaron_GithubAll	    2000	    724650 ns/op	  224960 B/op	    2315 allocs/op
BenchmarkMartini_GithubAll	     100	  10926021 ns/op	  237953 B/op	    2686 allocs/op
BenchmarkPat_GithubAll	     	 300	   4525114 ns/op	 1504101 B/op	   32222 allocs/op
BenchmarkRevel_GithubAll	    2000	   1172963 ns/op	  345553 B/op	    5918 allocs/op
BenchmarkRivet_GithubAll	   10000	    249104 ns/op	   84272 B/op	    1079 allocs/op
BenchmarkTango_GithubAll	     300	   4012826 ns/op	 1368581 B/op	   29157 allocs/op
BenchmarkTigerTonic_GithubAll	2000	    975450 ns/op	  241088 B/op	    6052 allocs/op
BenchmarkTraffic_GithubAll	     200	   7540377 ns/op	 2664762 B/op	   22390 allocs/op
BenchmarkVulcan_GithubAll	    5000	    307241 ns/op	   19894 B/op	     609 allocs/op
BenchmarkZeus_GithubAll	        2000	    752907 ns/op	  300688 B/op	    2648 allocs/op

Installation

$ go get github.com/labstack/echo

##Examples

##Guide

Contribute

Use issues for everything

  • Report problems
  • Discuss before sending pull request
  • Suggest new features
  • Improve/fix documentation

Credits

License

MIT

Documentation

Index

Constants

View Source 
const (
	// CONNECT HTTP method
	CONNECT = "CONNECT"
	// DELETE HTTP method
	DELETE = "DELETE"
	// GET HTTP method
	GET = "GET"
	// HEAD HTTP method
	HEAD = "HEAD"
	// OPTIONS HTTP method
	OPTIONS = "OPTIONS"
	// PATCH HTTP method
	PATCH = "PATCH"
	// POST HTTP method
	POST = "POST"
	// PUT HTTP method
	PUT = "PUT"
	// TRACE HTTP method
	TRACE = "TRACE"

	ApplicationJSON     = "application/json"
	ApplicationProtobuf = "application/protobuf"
	ApplicationMsgpack  = "application/msgpack"
	TextPlain           = "text/plain"
	TextHTML            = "text/html"
	ApplicationForm     = "application/x-www-form-urlencoded"
	MultipartForm       = "multipart/form-data"

	Accept             = "Accept"
	AcceptEncoding     = "Accept-Encoding"
	ContentDisposition = "Content-Disposition"
	ContentEncoding    = "Content-Encoding"
	ContentLength      = "Content-Length"
	ContentType        = "Content-Type"
	Authorization      = "Authorization"
	Upgrade            = "Upgrade"

	WebSocket = "websocket"
)

Variables

View Source 
var (
	UnsupportedMediaType  = errors.New("echo ⇒ unsupported media type")
	RendererNotRegistered = errors.New("echo ⇒ renderer not registered")
)

Functions

This section is empty.

Types

type BindFunc 

type BindFunc func(*http.Request, interface{}) error

type Context 

type Context struct {
	// contains filtered or unexported fields
}

Context represents context for the current request. It holds request and response objects, path parameters, data and registered handler.

func NewContext 

func NewContext(req *http.Request, res *Response, e *Echo) *Context

NewContext creates a Context object.

func (*Context) Bind 

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

Bind binds the request body into specified type v. Default binder does it based on Content-Type header.

func (*Context) Error 

func (c *Context) Error(err error)

Error invokes the registered HTTP error handler. Usually used by middleware.

func (*Context) Get 

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

Get retrieves data from the context.

func (*Context) HTML 

func (c *Context) HTML(code int, html string) error

HTML sends a text/html response with status code.

func (*Context) JSON 

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

JSON sends an application/json response with status code.

func (*Context) NoContent 

func (c *Context) NoContent(code int) error

NoContent sends a response with no body and a status code.

func (*Context) P 

func (c *Context) P(i uint8) (value string)

P returns path parameter by index.

func (*Context) Param 

func (c *Context) Param(name string) (value string)

Param returns path parameter by name.

func (*Context) Redirect 

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

Redirect redirects the request using http.Redirect with status code.

func (*Context) Render 

func (c *Context) Render(code int, name string, data interface{}) error

Render invokes the registered HTML template renderer and sends a text/html response with status code.

func (*Context) Request 

func (c *Context) Request() *http.Request

Request returns *http.Request.

func (*Context) Response 

func (c *Context) Response() *Response

Response returns *Response.

func (*Context) Set 

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

Set saves data in the context.

func (*Context) Socket 

func (c *Context) Socket() *websocket.Conn

Socket returns *websocket.Conn.

func (*Context) String 

func (c *Context) String(code int, s string) error

String sends a text/plain response with status code.

type Echo 

type Echo struct {
	// contains filtered or unexported fields
}

func New 

func New() (e *Echo)

New creates an Echo instance.

func (*Echo) Connect 

func (e *Echo) Connect(path string, h Handler)

Connect adds a CONNECT route > handler to the router.

func (*Echo) Debug 

func (e *Echo) Debug() bool

Debug returns debug mode.

func (*Echo) DefaultHTTPErrorHandler 

func (e *Echo) DefaultHTTPErrorHandler(err error, c *Context)

DefaultHTTPErrorHandler invokes the default HTTP error handler.

func (*Echo) Delete 

func (e *Echo) Delete(path string, h Handler)

Delete adds a DELETE route > handler to the router.

func (*Echo) Favicon 

func (e *Echo) Favicon(file string)

Favicon serves the default favicon - GET /favicon.ico.

func (*Echo) Get 

func (e *Echo) Get(path string, h Handler)

Get adds a GET route > handler to the router.

func (*Echo) Group 

func (e *Echo) Group(prefix string, m ...Middleware) *Group

Group creates a new sub router with prefix. It inherits all properties from the parent. Passing middleware overrides parent middleware.

func (*Echo) HTTP2 

func (e *Echo) HTTP2(on bool)

HTTP2 enables HTTP2 support.

func (*Echo) Head 

func (e *Echo) Head(path string, h Handler)

Head adds a HEAD route > handler to the router.

func (*Echo) Index 

func (e *Echo) Index(file string)

Index serves index file.

func (*Echo) Options 

func (e *Echo) Options(path string, h Handler)

Options adds an OPTIONS route > handler to the router.

func (*Echo) Patch 

func (e *Echo) Patch(path string, h Handler)

Patch adds a PATCH route > handler to the router.

func (*Echo) Post 

func (e *Echo) Post(path string, h Handler)

Post adds a POST route > handler to the router.

func (*Echo) Put 

func (e *Echo) Put(path string, h Handler)

Put adds a PUT route > handler to the router.

func (*Echo) Router 

func (e *Echo) Router() *Router

Router returns router.

func (*Echo) Routes 

func (e *Echo) Routes() []Route

Routes returns the registered routes.

func (*Echo) Run 

func (e *Echo) Run(addr string)

Run runs a server.

func (*Echo) RunServer 

func (e *Echo) RunServer(srv *http.Server)

RunServer runs a custom server.

func (*Echo) RunTLS 

func (e *Echo) RunTLS(addr, certFile, keyFile string)

RunTLS runs a server with TLS configuration.

func (*Echo) RunTLSServer 

func (e *Echo) RunTLSServer(srv *http.Server, certFile, keyFile string)

RunTLSServer runs a custom server with TLS configuration.

func (*Echo) ServeDir 

func (e *Echo) ServeDir(path, dir string)

ServeDir serves files from a directory.

func (*Echo) ServeFile 

func (e *Echo) ServeFile(path, file string)

ServeFile serves a file.

func (*Echo) ServeHTTP 

func (e *Echo) ServeHTTP(w http.ResponseWriter, r *http.Request)

func (*Echo) SetBinder 

func (e *Echo) SetBinder(b BindFunc)

SetBinder registers a custom binder. It's invoked by Context.Bind().

func (*Echo) SetDebug 

func (e *Echo) SetDebug(on bool)

SetDebug sets debug mode.

func (*Echo) SetHTTPErrorHandler 

func (e *Echo) SetHTTPErrorHandler(h HTTPErrorHandler)

SetHTTPErrorHandler registers a custom Echo.HTTPErrorHandler.

func (*Echo) SetMaxParam 

func (e *Echo) SetMaxParam(n uint8)

SetMaxParam sets the maximum number of path parameters allowed for the application. Default value is 5, good enough for many use cases.

func (*Echo) SetRenderer 

func (e *Echo) SetRenderer(r Renderer)

SetRenderer registers an HTML template renderer. It's invoked by Context.Render().

func (*Echo) Static 

func (e *Echo) Static(path, dir string)

Static serves static files from a directory. It's an alias for `Echo.ServeDir`

func (*Echo) Trace 

func (e *Echo) Trace(path string, h Handler)

Trace adds a TRACE route > handler to the router.

func (*Echo) URI 

func (e *Echo) URI(h Handler, params ...interface{}) string

URI generates a URI from handler.

func (*Echo) URL 

func (e *Echo) URL(h Handler, params ...interface{}) string

URL is an alias for URI

func (*Echo) Use 

func (e *Echo) Use(m ...Middleware)

Use adds handler to the middleware chain.

func (*Echo) WebSocket 

func (e *Echo) WebSocket(path string, h HandlerFunc)

WebSocket adds a WebSocket route > handler to the router.

type Group 

type Group struct {
	// contains filtered or unexported fields
}

func (*Group) Connect 

func (g *Group) Connect(path string, h Handler)

func (*Group) Delete 

func (g *Group) Delete(path string, h Handler)

func (*Group) Get 

func (g *Group) Get(path string, h Handler)

func (*Group) Group 

func (g *Group) Group(prefix string, m ...Middleware) *Group

func (*Group) Head 

func (g *Group) Head(path string, h Handler)

func (*Group) Options 

func (g *Group) Options(path string, h Handler)

func (*Group) Patch 

func (g *Group) Patch(path string, h Handler)

func (*Group) Post 

func (g *Group) Post(path string, h Handler)

func (*Group) Put 

func (g *Group) Put(path string, h Handler)

func (*Group) ServeDir 

func (g *Group) ServeDir(path, root string)

func (*Group) ServeFile 

func (g *Group) ServeFile(path, file string)

func (*Group) Static 

func (g *Group) Static(path, root string)

func (*Group) Trace 

func (g *Group) Trace(path string, h Handler)

func (*Group) Use 

func (g *Group) Use(m ...Middleware)

func (*Group) WebSocket 

func (g *Group) WebSocket(path string, h HandlerFunc)

type HTTPError 

type HTTPError struct {
	// contains filtered or unexported fields
}

func NewHTTPError 

func NewHTTPError(code int, msg ...string) *HTTPError

func (*HTTPError) Code 

func (e *HTTPError) Code() int

Code returns code.

func (*HTTPError) Error 

func (e *HTTPError) Error() string

Error returns message.

type HTTPErrorHandler 

type HTTPErrorHandler func(error, *Context)

HTTPErrorHandler is a centralized HTTP error handler.

type Handler 

type Handler interface{}

type HandlerFunc 

type HandlerFunc func(*Context) error

type Middleware 

type Middleware interface{}

type MiddlewareFunc 

type MiddlewareFunc func(HandlerFunc) HandlerFunc

type Renderer 

type Renderer interface {
	Render(w io.Writer, name string, data interface{}) error
}

Renderer is the interface that wraps the Render method.

Render renders the HTML template with given name and specified data. It writes the output to w.

type Response 

type Response struct {
	// contains filtered or unexported fields
}

func NewResponse 

func NewResponse(w http.ResponseWriter) *Response

func (*Response) CloseNotify 

func (r *Response) CloseNotify() <-chan bool

CloseNotify wraps response writer's CloseNotify function.

func (*Response) Flush 

func (r *Response) Flush()

Flush wraps response writer's Flush function.

func (*Response) Header 

func (r *Response) Header() http.Header

func (*Response) Hijack 

func (r *Response) Hijack() (net.Conn, *bufio.ReadWriter, error)

Hijack wraps response writer's Hijack function.

func (*Response) SetWriter 

func (r *Response) SetWriter(w http.ResponseWriter)

func (*Response) Size 

func (r *Response) Size() int64

func (*Response) Status 

func (r *Response) Status() int

func (*Response) Write 

func (r *Response) Write(b []byte) (n int, err error)

func (*Response) WriteHeader 

func (r *Response) WriteHeader(code int)

func (*Response) Writer 

func (r *Response) Writer() http.ResponseWriter

type Route 

type Route struct {
	Method  string
	Path    string
	Handler Handler
}

type Router 

type Router struct {
	// contains filtered or unexported fields
}

func NewRouter 

func NewRouter(e *Echo) (r *Router)

func (*Router) Add 

func (r *Router) Add(method, path string, h HandlerFunc, echo *Echo)

func (*Router) Find 

func (r *Router) Find(method, path string, ctx *Context) (h HandlerFunc, echo *Echo)

func (*Router) ServeHTTP 

func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request)

Source Files

View all Source files

Directories

Path Synopsis
examples
crud
hello
middleware
website

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