nio

package module
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 Go to latest Published: Dec 9, 2018 License: MIT Imports: 24 Imported by: 0

README

nio

Example
package main

import (
	"net/http"

	"github.com/anjmao/nio"
	"github.com/anjmao/nio/middleware"
)

func main() {
	// Nio instance
	d := nio.New()

	// Middleware
	d.Use(middleware.Logger())
	d.Use(middleware.Recover())

	// Routes
	d.GET("/", hello)

	// Start server
	d.Logger.Fatal(d.Start(":1323"))
}

// Handler
func hello(c nio.Context) error {
	return c.String(http.StatusOK, "Hello, World!")
}

Documentation

Overview

package nio implements high performance, minimalist Go web framework.

Example: 

package main

import (
  "net/http"

  "github.com/anjmao/nio"
  "github.com/anjmao/nio/middleware"
)

// Handler
func hello(c nio.Context) error {
  return c.String(http.StatusOK, "Hello, World!")
}

func main() {
  // Nio instance
  e := nio.New()

  // Middleware
  e.Use(middleware.Logger())
  e.Use(middleware.Recover())

  // Routes
  e.GET("/", hello)

  // Start server
  e.Logger.Fatal(e.Start(":1323"))
}

Learn more at https://nio.dostack.com

Index

Constants

View Source 
const (
	MIMEApplicationJSON                  = "application/json"
	MIMEApplicationJSONCharsetUTF8       = MIMEApplicationJSON + "; " + charsetUTF8
	MIMEApplicationJavaScript            = "application/javascript"
	MIMEApplicationJavaScriptCharsetUTF8 = MIMEApplicationJavaScript + "; " + charsetUTF8
	MIMEApplicationXML                   = "application/xml"
	MIMEApplicationXMLCharsetUTF8        = MIMEApplicationXML + "; " + charsetUTF8
	MIMETextXML                          = "text/xml"
	MIMETextXMLCharsetUTF8               = MIMETextXML + "; " + charsetUTF8
	MIMEApplicationForm                  = "application/x-www-form-urlencoded"
	MIMEApplicationProtobuf              = "application/protobuf"
	MIMEApplicationMsgpack               = "application/msgpack"
	MIMETextHTML                         = "text/html"
	MIMETextHTMLCharsetUTF8              = MIMETextHTML + "; " + charsetUTF8
	MIMETextPlain                        = "text/plain"
	MIMETextPlainCharsetUTF8             = MIMETextPlain + "; " + charsetUTF8
	MIMEMultipartForm                    = "multipart/form-data"
	MIMEOctetStream                      = "application/octet-stream"
)

MIME types

View Source 
const (
	HeaderAccept              = "Accept"
	HeaderAcceptEncoding      = "Accept-Encoding"
	HeaderAllow               = "Allow"
	HeaderAuthorization       = "Authorization"
	HeaderContentDisposition  = "Content-Disposition"
	HeaderContentEncoding     = "Content-Encoding"
	HeaderContentLength       = "Content-Length"
	HeaderContentType         = "Content-Type"
	HeaderCookie              = "Cookie"
	HeaderSetCookie           = "Set-Cookie"
	HeaderIfModifiedSince     = "If-Modified-Since"
	HeaderLastModified        = "Last-Modified"
	HeaderLocation            = "Location"
	HeaderUpgrade             = "Upgrade"
	HeaderVary                = "Vary"
	HeaderWWWAuthenticate     = "WWW-Authenticate"
	HeaderXForwardedFor       = "X-Forwarded-For"
	HeaderXForwardedProto     = "X-Forwarded-Proto"
	HeaderXForwardedProtocol  = "X-Forwarded-Protocol"
	HeaderXForwardedSsl       = "X-Forwarded-Ssl"
	HeaderXUrlScheme          = "X-Url-Scheme"
	HeaderXHTTPMethodOverride = "X-HTTP-Method-Override"
	HeaderXRealIP             = "X-Real-IP"
	HeaderXRequestID          = "X-Request-ID"
	HeaderXRequestedWith      = "X-Requested-With"
	HeaderServer              = "Server"
	HeaderOrigin              = "Origin"

	// Access control
	HeaderAccessControlRequestMethod    = "Access-Control-Request-Method"
	HeaderAccessControlRequestHeaders   = "Access-Control-Request-Headers"
	HeaderAccessControlAllowOrigin      = "Access-Control-Allow-Origin"
	HeaderAccessControlAllowMethods     = "Access-Control-Allow-Methods"
	HeaderAccessControlAllowHeaders     = "Access-Control-Allow-Headers"
	HeaderAccessControlAllowCredentials = "Access-Control-Allow-Credentials"
	HeaderAccessControlExposeHeaders    = "Access-Control-Expose-Headers"
	HeaderAccessControlMaxAge           = "Access-Control-Max-Age"

	// Security
	HeaderStrictTransportSecurity = "Strict-Transport-Security"
	HeaderXContentTypeOptions     = "X-Content-Type-Options"
	HeaderXXSSProtection          = "X-XSS-Protection"
	HeaderXFrameOptions           = "X-Frame-Options"
	HeaderContentSecurityPolicy   = "Content-Security-Policy"
	HeaderXCSRFToken              = "X-CSRF-Token"
)

Headers

View Source 
const (
	PROPFIND = "PROPFIND"
)
View Source 
const (
	Version = "1.0.0"
)

Variables

View Source 
var (
	ErrUnsupportedMediaType        = NewHTTPError(http.StatusUnsupportedMediaType)
	ErrNotFound                    = NewHTTPError(http.StatusNotFound)
	ErrUnauthorized                = NewHTTPError(http.StatusUnauthorized)
	ErrForbidden                   = NewHTTPError(http.StatusForbidden)
	ErrMethodNotAllowed            = NewHTTPError(http.StatusMethodNotAllowed)
	ErrStatusRequestEntityTooLarge = NewHTTPError(http.StatusRequestEntityTooLarge)
	ErrTooManyRequests             = NewHTTPError(http.StatusTooManyRequests)
	ErrBadRequest                  = NewHTTPError(http.StatusBadRequest)
	ErrBadGateway                  = NewHTTPError(http.StatusBadGateway)
	ErrInternalServerError         = NewHTTPError(http.StatusInternalServerError)
	ErrRequestTimeout              = NewHTTPError(http.StatusRequestTimeout)
	ErrServiceUnavailable          = NewHTTPError(http.StatusServiceUnavailable)
	ErrValidatorNotRegistered      = errors.New("validator not registered")
	ErrRendererNotRegistered       = errors.New("renderer not registered")
	ErrInvalidRedirectCode         = errors.New("invalid redirect status code")
	ErrCookieNotFound              = errors.New("cookie not found")
)

Errors

View Source 
var (
	NotFoundHandler = func(c Context) error {
		return ErrNotFound
	}

	MethodNotAllowedHandler = func(c Context) error {
		return ErrMethodNotAllowed
	}
)

Error handlers

Functions

This section is empty.

Types

type BindUnmarshaler 

type BindUnmarshaler interface {
	// UnmarshalParam decodes and assigns a value from an form or query param.
	UnmarshalParam(param string) error
}

BindUnmarshaler is the interface used to wrap the UnmarshalParam method.

type Binder 

type Binder interface {
	Bind(i interface{}, c Context) error
}

Binder is the interface that wraps the Bind method.

type Context 

type Context interface {
	// Request returns `*http.Request`.
	Request() *http.Request

	// SetRequest sets `*http.Request`.
	SetRequest(r *http.Request)

	// Response returns `*Response`.
	Response() *Response

	// IsTLS returns true if HTTP connection is TLS otherwise false.
	IsTLS() bool

	// IsWebSocket returns true if HTTP connection is WebSocket otherwise false.
	IsWebSocket() bool

	// Scheme returns the HTTP protocol scheme, `http` or `https`.
	Scheme() string

	// RealIP returns the client's network address based on `X-Forwarded-For`
	// or `X-Real-IP` request header.
	RealIP() string

	// Path returns the registered path for the handler.
	Path() string

	// SetPath sets the registered path for the handler.
	SetPath(p string)

	// Param returns path parameter by name.
	Param(name string) string

	// ParamNames returns path parameter names.
	ParamNames() []string

	// SetParamNames sets path parameter names.
	SetParamNames(names ...string)

	// ParamValues returns path parameter values.
	ParamValues() []string

	// SetParamValues sets path parameter values.
	SetParamValues(values ...string)

	// QueryParam returns the query param for the provided name.
	QueryParam(name string) string

	// QueryParams returns the query parameters as `url.Values`.
	QueryParams() url.Values

	// QueryString returns the URL query string.
	QueryString() string

	// FormValue returns the form field value for the provided name.
	FormValue(name string) string

	// FormParams returns the form parameters as `url.Values`.
	FormParams() (url.Values, error)

	// FormFile returns the multipart form file for the provided name.
	FormFile(name string) (*multipart.FileHeader, error)

	// MultipartForm returns the multipart form.
	MultipartForm() (*multipart.Form, error)

	// Cookie returns the named cookie provided in the request.
	Cookie(name string) (*http.Cookie, error)

	// SetCookie adds a `Set-Cookie` header in HTTP response.
	SetCookie(cookie *http.Cookie)

	// Cookies returns the HTTP cookies sent with the request.
	Cookies() []*http.Cookie

	// Get retrieves data from the context.
	Get(key string) interface{}

	// Set saves data in the context.
	Set(key string, val interface{})

	// Bind binds the request body into provided type `i`. The default binder
	// does it based on Content-Type header.
	Bind(i interface{}) error

	// Validate validates provided `i`. It is usually called after `Context#Bind()`.
	// Validator must be registered using `Nio#Validator`.
	Validate(i interface{}) error

	// Render renders a template with data and sends a text/html response with status
	// code. Renderer must be registered using `nio.Renderer`.
	Render(code int, name string, data interface{}) error

	// HTML sends an HTTP response with status code.
	HTML(code int, html string) error

	// HTMLBlob sends an HTTP blob response with status code.
	HTMLBlob(code int, b []byte) error

	// String sends a string response with status code.
	String(code int, s string) error

	// JSON sends a JSON response with status code.
	JSON(code int, i interface{}) error

	// JSONPretty sends a pretty-print JSON with status code.
	JSONPretty(code int, i interface{}, indent string) error

	// JSONBlob sends a JSON blob response with status code.
	JSONBlob(code int, b []byte) error

	// JSONP sends a JSONP response with status code. It uses `callback` to construct
	// the JSONP payload.
	JSONP(code int, callback string, i interface{}) error

	// JSONPBlob sends a JSONP blob response with status code. It uses `callback`
	// to construct the JSONP payload.
	JSONPBlob(code int, callback string, b []byte) error

	// XML sends an XML response with status code.
	XML(code int, i interface{}) error

	// XMLPretty sends a pretty-print XML with status code.
	XMLPretty(code int, i interface{}, indent string) error

	// XMLBlob sends an XML blob response with status code.
	XMLBlob(code int, b []byte) error

	// Blob sends a blob response with status code and content type.
	Blob(code int, contentType string, b []byte) error

	// Stream sends a streaming response with status code and content type.
	Stream(code int, contentType string, r io.Reader) error

	// File sends a response with the content of the file.
	File(file string) error

	// Attachment sends a response as attachment, prompting client to save the
	// file.
	Attachment(file string, name string) error

	// Inline sends a response as inline, opening the file in the browser.
	Inline(file string, name string) error

	// NoContent sends a response with no body and a status code.
	NoContent(code int) error

	// Redirect redirects the request to a provided URL with status code.
	Redirect(code int, url string) error

	// Error invokes the registered HTTP error handler. Generally used by middleware.
	Error(err error)

	// Handler returns the matched handler by router.
	Handler() HandlerFunc

	// SetHandler sets the matched handler by router.
	SetHandler(h HandlerFunc)

	// Nio returns the `Nio` instance.
	Nio() *Nio

	// Reset resets the context after request completes. It must be called along
	// with `Nio#AcquireContext()` and `Nio#ReleaseContext()`.
	// See `Nio#ServeHTTP()`
	Reset(r *http.Request, w http.ResponseWriter)
}

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

type DefaultBinder 

type DefaultBinder struct{}

DefaultBinder is the default implementation of the Binder interface.

func (*DefaultBinder) Bind 

func (b *DefaultBinder) Bind(i interface{}, c Context) (err error)

Bind implements the `Binder#Bind` function.

type Group 

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

Group is a set of sub-routes for a specified route. It can be used for inner routes that share a common middleware or functionality that should be separate from the parent nio instance while still inheriting from it.

func (*Group) Add 

func (g *Group) Add(method, path string, handler HandlerFunc, middleware ...MiddlewareFunc) *Route

Add implements `Nio#Add()` for sub-routes within the Group.

func (*Group) Any 

func (g *Group) Any(path string, handler HandlerFunc, middleware ...MiddlewareFunc) []*Route

Any implements `Nio#Any()` for sub-routes within the Group.

func (*Group) CONNECT 

func (g *Group) CONNECT(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

CONNECT implements `Nio#CONNECT()` for sub-routes within the Group.

func (*Group) DELETE 

func (g *Group) DELETE(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

DELETE implements `Nio#DELETE()` for sub-routes within the Group.

func (*Group) File 

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

File implements `Nio#File()` for sub-routes within the Group.

func (*Group) GET 

func (g *Group) GET(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

GET implements `Nio#GET()` for sub-routes within the Group.

func (*Group) Group 

func (g *Group) Group(prefix string, middleware ...MiddlewareFunc) *Group

Group creates a new sub-group with prefix and optional sub-group-level middleware.

func (*Group) HEAD 

func (g *Group) HEAD(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

HEAD implements `Nio#HEAD()` for sub-routes within the Group.

func (*Group) Match 

func (g *Group) Match(methods []string, path string, handler HandlerFunc, middleware ...MiddlewareFunc) []*Route

Match implements `Nio#Match()` for sub-routes within the Group.

func (*Group) OPTIONS 

func (g *Group) OPTIONS(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

OPTIONS implements `Nio#OPTIONS()` for sub-routes within the Group.

func (*Group) PATCH 

func (g *Group) PATCH(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

PATCH implements `Nio#PATCH()` for sub-routes within the Group.

func (*Group) POST 

func (g *Group) POST(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

POST implements `Nio#POST()` for sub-routes within the Group.

func (*Group) PUT 

func (g *Group) PUT(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

PUT implements `Nio#PUT()` for sub-routes within the Group.

func (*Group) Static 

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

Static implements `Nio#Static()` for sub-routes within the Group.

func (*Group) TRACE 

func (g *Group) TRACE(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

TRACE implements `Nio#TRACE()` for sub-routes within the Group.

func (*Group) Use 

func (g *Group) Use(middleware ...MiddlewareFunc)

Use implements `Nio#Use()` for sub-routes within the Group.

type HTTPError 

type HTTPError struct {
	Code     int
	Message  interface{}
	Internal error // Stores the error returned by an external dependency
}

HTTPError represents an error that occurred while handling a request.

func NewHTTPError 

func NewHTTPError(code int, message ...interface{}) *HTTPError

NewHTTPError creates a new HTTPError instance.

func (*HTTPError) Error 

func (he *HTTPError) Error() string

Error makes it compatible with `error` interface.

func (*HTTPError) SetInternal 

func (he *HTTPError) SetInternal(err error) *HTTPError

type HTTPErrorHandler 

type HTTPErrorHandler func(error, Context)

HTTPErrorHandler is a centralized HTTP error handler.

type HandlerFunc 

type HandlerFunc func(Context) error

HandlerFunc defines a function to serve HTTP requests.

func WrapHandler 

func WrapHandler(h http.Handler) HandlerFunc

WrapHandler wraps `http.Handler` into `nio.HandlerFunc`.

type Map 

type Map map[string]interface{}

Map defines a generic map of type `map[string]interface{}`.

type MiddlewareFunc 

type MiddlewareFunc func(HandlerFunc) HandlerFunc

MiddlewareFunc defines a function to process middleware.

func WrapMiddleware 

func WrapMiddleware(m func(http.Handler) http.Handler) MiddlewareFunc

WrapMiddleware wraps `func(http.Handler) http.Handler` into `nio.MiddlewareFunc`

type Nio 

type Nio struct {
	StdLogger *stdLog.Logger

	Server           *http.Server
	TLSServer        *http.Server
	Listener         net.Listener
	TLSListener      net.Listener
	DisableHTTP2     bool
	Debug            bool
	HidePort         bool
	HTTPErrorHandler HTTPErrorHandler
	Binder           Binder
	Validator        Validator
	Renderer         Renderer
	// contains filtered or unexported fields
}

Nio is the top-level framework instance.

func New 

func New() (e *Nio)

New creates an instance of nio.

func (*Nio) AcquireContext 

func (e *Nio) AcquireContext() Context

AcquireContext returns an empty `Context` instance from the pool. You must return the context by calling `ReleaseContext()`.

func (*Nio) Add 

func (e *Nio) Add(method, path string, handler HandlerFunc, middleware ...MiddlewareFunc) *Route

Add registers a new route for an HTTP method and path with matching handler in the router with optional route-level middleware.

func (*Nio) Any 

func (e *Nio) Any(path string, handler HandlerFunc, middleware ...MiddlewareFunc) []*Route

Any registers a new route for all HTTP methods and path with matching handler in the router with optional route-level middleware.

func (*Nio) CONNECT 

func (e *Nio) CONNECT(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

CONNECT registers a new CONNECT route for a path with matching handler in the router with optional route-level middleware.

func (*Nio) Close 

func (e *Nio) Close() error

Close immediately stops the server. It internally calls `http.Server#Close()`.

func (*Nio) DELETE 

func (e *Nio) DELETE(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

DELETE registers a new DELETE route for a path with matching handler in the router with optional route-level middleware.

func (*Nio) DefaultHTTPErrorHandler 

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

DefaultHTTPErrorHandler is the default HTTP error handler. It sends a JSON response with status code.

func (*Nio) File 

func (e *Nio) File(path, file string, m ...MiddlewareFunc) *Route

File registers a new route with path to serve a static file with optional route-level middleware.

func (*Nio) GET 

func (e *Nio) GET(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

GET registers a new GET route for a path with matching handler in the router with optional route-level middleware.

func (*Nio) Group 

func (e *Nio) Group(prefix string, m ...MiddlewareFunc) (g *Group)

Group creates a new router group with prefix and optional group-level middleware.

func (*Nio) HEAD 

func (e *Nio) HEAD(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

HEAD registers a new HEAD route for a path with matching handler in the router with optional route-level middleware.

func (*Nio) Match 

func (e *Nio) Match(methods []string, path string, handler HandlerFunc, middleware ...MiddlewareFunc) []*Route

Match registers a new route for multiple HTTP methods and path with matching handler in the router with optional route-level middleware.

func (*Nio) NewContext 

func (e *Nio) NewContext(r *http.Request, w http.ResponseWriter) Context

NewContext returns a Context instance.

func (*Nio) OPTIONS 

func (e *Nio) OPTIONS(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

OPTIONS registers a new OPTIONS route for a path with matching handler in the router with optional route-level middleware.

func (*Nio) PATCH 

func (e *Nio) PATCH(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

PATCH registers a new PATCH route for a path with matching handler in the router with optional route-level middleware.

func (*Nio) POST 

func (e *Nio) POST(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

POST registers a new POST route for a path with matching handler in the router with optional route-level middleware.

func (*Nio) PUT 

func (e *Nio) PUT(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

PUT registers a new PUT route for a path with matching handler in the router with optional route-level middleware.

func (*Nio) Pre 

func (e *Nio) Pre(middleware ...MiddlewareFunc)

Pre adds middleware to the chain which is run before router.

func (*Nio) ReleaseContext 

func (e *Nio) ReleaseContext(c Context)

ReleaseContext returns the `Context` instance back to the pool. You must call it after `AcquireContext()`.

func (*Nio) Reverse 

func (e *Nio) Reverse(name string, params ...interface{}) string

Reverse generates an URL from route name and provided parameters.

func (*Nio) Router 

func (e *Nio) Router() *Router

Router returns router.

func (*Nio) Routes 

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

Routes returns the registered routes.

func (*Nio) ServeHTTP 

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

ServeHTTP implements `http.Handler` interface, which serves HTTP requests.

func (*Nio) Shutdown 

func (e *Nio) Shutdown(ctx stdContext.Context) error

Shutdown stops server the gracefully. It internally calls `http.Server#Shutdown()`.

func (*Nio) Start 

func (e *Nio) Start(address string) error

Start starts an HTTP server.

func (*Nio) StartServer 

func (e *Nio) StartServer(s *http.Server) (err error)

StartServer starts a custom http server.

func (*Nio) StartTLS 

func (e *Nio) StartTLS(address string, certFile, keyFile string) (err error)

StartTLS starts an HTTPS server.

func (*Nio) Static 

func (e *Nio) Static(prefix, root string) *Route

Static registers a new route with path prefix to serve static files from the provided root directory.

func (*Nio) TRACE 

func (e *Nio) TRACE(path string, h HandlerFunc, m ...MiddlewareFunc) *Route

TRACE registers a new TRACE route for a path with matching handler in the router with optional route-level middleware.

func (*Nio) URI 

func (e *Nio) URI(handler HandlerFunc, params ...interface{}) string

URI generates a URI from handler.

func (*Nio) URL 

func (e *Nio) URL(h HandlerFunc, params ...interface{}) string

URL is an alias for `URI` function.

func (*Nio) Use 

func (e *Nio) Use(middleware ...MiddlewareFunc)

Use adds middleware to the chain which is run after router.

type Renderer 

type Renderer interface {
	Render(io.Writer, string, interface{}, Context) error
}

Renderer is the interface that wraps the Render function.

type Response 

type Response struct {
	Writer    http.ResponseWriter
	Status    int
	Size      int64
	Committed bool
	// contains filtered or unexported fields
}

Response wraps an http.ResponseWriter and implements its interface to be used by an HTTP handler to construct an HTTP response. See: https://golang.org/pkg/net/http/#ResponseWriter

func NewResponse 

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

NewResponse creates a new instance of Response.

func (*Response) After 

func (r *Response) After(fn func())

After registers a function which is called just after the response is written. If the `Content-Length` is unknown, none of the after function is executed.

func (*Response) Before 

func (r *Response) Before(fn func())

Before registers a function which is called just before the response is written.

func (*Response) CloseNotify 

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

CloseNotify implements the http.CloseNotifier interface to allow detecting when the underlying connection has gone away. This mechanism can be used to cancel long operations on the server if the client has disconnected before the response is ready. See http.CloseNotifier(https://golang.org/pkg/net/http/#CloseNotifier)

func (*Response) Flush 

func (r *Response) Flush()

Flush implements the http.Flusher interface to allow an HTTP handler to flush buffered data to the client. See http.Flusher(https://golang.org/pkg/net/http/#Flusher)

func (*Response) Header 

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

Header returns the header map for the writer that will be sent by WriteHeader. Changing the header after a call to WriteHeader (or Write) has no effect unless the modified headers were declared as trailers by setting the "Trailer" header before the call to WriteHeader (see example) To suppress implicit response headers, set their value to nil. Example: https://golang.org/pkg/net/http/#example_ResponseWriter_trailers

func (*Response) Hijack 

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

Hijack implements the http.Hijacker interface to allow an HTTP handler to take over the connection. See http.Hijacker(https://golang.org/pkg/net/http/#Hijacker)

func (*Response) Write 

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

Write writes the data to the connection as part of an HTTP reply.

func (*Response) WriteHeader 

func (r *Response) WriteHeader(code int)

WriteHeader sends an HTTP response header with status code. If WriteHeader is not called explicitly, the first call to Write will trigger an implicit WriteHeader(http.StatusOK). Thus explicit calls to WriteHeader are mainly used to send error codes.

type Route 

type Route struct {
	Method string `json:"method"`
	Path   string `json:"path"`
	Name   string `json:"name"`
}

Route contains a handler and information for matching against requests.

type Router 

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

Router is the registry of all registered routes for an `Nio` instance for request matching and URL path parameter parsing.

func NewRouter 

func NewRouter(e *Nio) *Router

NewRouter returns a new Router instance.

func (*Router) Add 

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

Add registers a new route for method and path with matching handler.

func (*Router) Find 

func (r *Router) Find(method, path string, c Context)

Find lookup a handler registered for method and path. It also parses URL for path parameters and load them into context.

For performance:

- Get context from `Nio#AcquireContext()` - Reset it `Context#Reset()` - Return it `Nio#ReleaseContext()`.

type Validator 

type Validator interface {
	Validate(i interface{}) error
}

Validator is the interface that wraps the Validate function.

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