gin

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 Go to latest Published: Jun 22, 2020 License: MIT Imports: 44 Imported by: 0

README

net/http/gin

项目简介

http 框架，带来如飞一般的体验。

Documentation

Overview

Copyright 2017 Manu Martinez-Almeida. All rights reserved. Use of this source code is governed by a MIT style license that can be found in the LICENSE file.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func Dir 

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

Dir returns a http.Filesystem that can be used by http.FileServer(). It is used internally in router.Static(). if listDirectory == true, then it works the same as http.Dir() otherwise it returns a filesystem that prevents http.FileServer() to list the directory files.

Types

type CORSConfig 

type CORSConfig struct {
	AllowAllOrigins bool

	// AllowedOrigins is a list of origins a cross-domain request can be executed from.
	// If the special "*" value is present in the list, all origins will be allowed.
	// Default value is []
	AllowOrigins []string

	// AllowOriginFunc is a custom function to validate the origin. It take the origin
	// as argument and returns true if allowed or false otherwise. If this option is
	// set, the content of AllowedOrigins is ignored.
	AllowOriginFunc func(origin string) bool

	// AllowedMethods is a list of methods the client is allowed to use with
	// cross-domain requests. Default value is simple methods (GET and POST)
	AllowMethods []string

	// AllowedHeaders is list of non simple headers the client is allowed to use with
	// cross-domain requests.
	AllowHeaders []string

	// AllowCredentials indicates whether the request can include user credentials like
	// cookies, HTTP authentication or client side SSL certificates.
	AllowCredentials bool

	// ExposedHeaders indicates which headers are safe to expose to the API of a CORS
	// API specification
	ExposeHeaders []string

	// MaxAge indicates how long (in seconds) the results of a preflight request
	// can be cached
	MaxAge time.Duration
}

CORSConfig represents all available options for the middleware.

func (*CORSConfig) Validate 

func (c *CORSConfig) Validate() error

Validate is check configuration of user defined.

type Client 

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

Client is http client.

func NewClient 

func NewClient(c *ClientConfig) *Client

NewClient new a http client.

func (*Client) Do 

func (client *Client) Do(c context.Context, req *xhttp.Request, res interface{}, v ...string) (err error)

Do sends an HTTP request and returns an HTTP json response.

func (*Client) Get 

func (client *Client) Get(c context.Context, uri, ip string, params url.Values, res interface{}) (err error)

Get issues a GET to the specified URL.

func (*Client) JSON 

func (client *Client) JSON(c context.Context, req *xhttp.Request, res interface{}, v ...string) (err error)

JSON sends an HTTP request and returns an HTTP json response.

func (*Client) NewRequest 

func (client *Client) NewRequest(method, uri, realIP string, params url.Values) (req *xhttp.Request, err error)

NewRequest new http request with method, uri, ip, values and headers. TODO(zhoujiahui): param realIP should be removed later.

func (*Client) PB 

func (client *Client) PB(c context.Context, req *xhttp.Request, res proto.Message, v ...string) (err error)

PB sends an HTTP request and returns an HTTP proto response.

func (*Client) Post 

func (client *Client) Post(c context.Context, uri, ip string, params url.Values, res interface{}) (err error)

Post issues a Post to the specified URL.

func (*Client) RESTfulGet 

func (client *Client) RESTfulGet(c context.Context, uri, ip string, params url.Values, res interface{}, v ...interface{}) (err error)

RESTfulGet issues a RESTful GET to the specified URL.

func (*Client) RESTfulPost 

func (client *Client) RESTfulPost(c context.Context, uri, ip string, params url.Values, res interface{}, v ...interface{}) (err error)

RESTfulPost issues a RESTful Post to the specified URL.

func (*Client) Raw 

func (client *Client) Raw(c context.Context, req *xhttp.Request, v ...string) (bs []byte, err error)

Raw sends an HTTP request and returns bytes response

func (*Client) SetConfig 

func (client *Client) SetConfig(c *ClientConfig)

SetConfig set client config.

func (*Client) SetTransport 

func (client *Client) SetTransport(t xhttp.RoundTripper)

SetTransport set client transport

type ClientConfig 

type ClientConfig struct {
	Dial      xtime.Duration
	Timeout   xtime.Duration
	KeepAlive xtime.Duration
	Breaker   *breaker.Config
	URL       map[string]*ClientConfig
	Host      map[string]*ClientConfig
}

ClientConfig is http client conf.

type Context 

type Context struct {
	context.Context

	Request *http.Request
	Writer  http.ResponseWriter

	// Keys is a key/value pair exclusively for the context of each request.
	Keys map[string]interface{}

	Error error

	RoutePath string

	Params Params
	// contains filtered or unexported fields
}

Context is the most important part. 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()

Abort prevents pending handlers from being called. Note that this will not stop the current handler. Let's say you have an authorization middleware that validates that the current request is authorized. If the authorization fails (ex: the password does not match), call Abort to ensure the remaining handlers for this request are not called.

func (*Context) AbortWithStatus 

func (c *Context) AbortWithStatus(code int)

AbortWithStatus calls `Abort()` and writes the headers with the specified status code. For example, a failed attempt to authenticate a request could use: context.AbortWithStatus(401).

func (*Context) Bind 

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

Bind 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

otherwise --> returns an error. It 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. It writes a 400 error and sets Content-Type header "text/plain" in the response if input is not valid.

func (*Context) BindWith 

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

BindWith bind req arg with parser.

func (*Context) Bytes 

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

Bytes writes some data into the body stream and updates the HTTP code.

func (*Context) DefaultQuery added in v0.4.5 

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

DefaultQuery returns the keyed url query value if it exists, otherwise it returns the specified defaultValue string. See: Query() and GetQuery() for further information. 

GET /?name=Manu&lastname=
c.DefaultQuery("name", "unknown") == "Manu"
c.DefaultQuery("id", "none") == "none"
c.DefaultQuery("lastname", "none") == ""

func (*Context) File added in v0.4.4 

func (c *Context) File(filepath string)

File writes the specified file into the body stream in a efficient way.

func (*Context) Get 

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

Get returns the value for the given key, ie: (value, true). If the value does not exists it returns (nil, false)

func (*Context) GetQuery added in v0.4.5 

func (c *Context) GetQuery(key string) (string, bool)

GetQuery is like Query(), it returns the keyed url query value if it exists `(value, true)` (even when the value is an empty string), otherwise it returns `("", false)`. It is shortcut for `c.Request.URL.Query().Get(key)` 

GET /?name=Manu&lastname=
("Manu", true) == c.GetQuery("name")
("", false) == c.GetQuery("id")
("", true) == c.GetQuery("lastname")

func (*Context) GetQueryArray added in v0.4.5 

func (c *Context) GetQueryArray(key string) ([]string, bool)

GetQueryArray returns a slice of strings for a given query key, plus a boolean value whether at least one value exists for the given key.

func (*Context) GetQueryMap added in v0.4.5 

func (c *Context) GetQueryMap(key string) (map[string]string, bool)

GetQueryMap returns a map for a given query key, plus a boolean value whether at least one value exists for the given key.

func (*Context) Header 

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

func (*Context) IsAborted 

func (c *Context) IsAborted() bool

IsAborted returns true if the current context was aborted.

func (*Context) JSON 

func (c *Context) JSON(data interface{}, err error)

JSON serializes the given struct as JSON into the response body. It also sets the Content-Type as "application/json".

func (*Context) JSONMap 

func (c *Context) JSONMap(data map[string]interface{}, err error)

JSONMap serializes the given map as map JSON into the response body. It also sets the Content-Type as "application/json".

func (*Context) Next 

func (c *Context) Next()

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

func (*Context) Protobuf 

func (c *Context) Protobuf(data proto.Message, err error)

Protobuf serializes the given struct as PB into the response body. It also sets the ContentType as "application/x-protobuf".

func (*Context) Query added in v0.4.5 

func (c *Context) Query(key string) string

Query returns the keyed url query value if it exists, otherwise it returns an empty string `("")`. It is shortcut for `c.Request.URL.Query().Get(key)` 

    GET /path?id=1234&name=Manu&value=
	   c.Query("id") == "1234"
	   c.Query("name") == "Manu"
	   c.Query("value") == ""
	   c.Query("wtf") == ""

func (*Context) QueryArray added in v0.4.5 

func (c *Context) QueryArray(key string) []string

QueryArray returns a slice of strings for a given query key. The length of the slice depends on the number of params with the given key.

func (*Context) QueryMap added in v0.4.5 

func (c *Context) QueryMap(key string) map[string]string

QueryMap returns a map for a given query key.

func (*Context) Redirect 

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

Redirect returns a HTTP redirect to the specific location.

func (*Context) Render 

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

Render http response with http code by a render instance.

func (*Context) Set 

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

Set is used to store a new key/value pair exclusively for this context. It also lazy initializes c.Keys if it was not used previously.

func (*Context) Status 

func (c *Context) Status(code int)

Status sets the HTTP response code.

func (*Context) String 

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

String writes the given string into the response body.

func (*Context) XML 

func (c *Context) XML(data interface{}, err error)

XML serializes the given struct as XML into the response body. It also sets the Content-Type as "application/xml".

type Engine 

type Engine struct {
	RouterGroup

	// If enabled, the url.RawPath will be used to find parameters.
	UseRawPath bool

	// If true, the path value will be unescaped.
	// If UseRawPath is false (by default), the UnescapePathValues effectively is true,
	// as url.Path gonna be used, which is already unescaped.
	UnescapePathValues 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
}

Engine is the framework's instance, it contains the muxer, middleware and configuration settings. Create an instance of Engine, by using New() or Default()

func DefaultServer 

func DefaultServer(conf *ServerConfig) *Engine

DefaultServer returns an Engine instance with the Recovery and Logger middleware already attached.

func NewServer 

func NewServer(conf *ServerConfig) *Engine

NewServer returns a new blank Engine instance without any middleware attached.

func (*Engine) Inject 

func (engine *Engine) Inject(pattern string, handlers ...HandlerFunc)

Inject is

func (*Engine) NoMethod 

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

NoMethod sets the handlers called when... TODO.

func (*Engine) NoRoute 

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

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

func (*Engine) Ping 

func (engine *Engine) Ping(handler HandlerFunc)

Ping is used to set the general HTTP ping handler.

func (*Engine) Register 

func (engine *Engine) Register(handler HandlerFunc)

Register is used to export metadata to discovery.

func (*Engine) Router 

func (engine *Engine) Router() http.Handler

Router return a http.Handler for using http.ListenAndServe() directly.

func (*Engine) Run 

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

Run attaches the router to a http.Server and starts listening and serving HTTP requests. It is a shortcut for http.ListenAndServe(addr, router) Note: this method will block the calling goroutine indefinitely unless an error happens.

func (*Engine) RunServer 

func (engine *Engine) RunServer(server *http.Server, l net.Listener) (err error)

RunServer will serve and start listening HTTP requests by given server and listener. Note: this method will block the calling goroutine indefinitely unless an error happens.

func (*Engine) RunTLS 

func (engine *Engine) RunTLS(addr, certFile, keyFile string) (err error)

RunTLS attaches the router to a http.Server and starts listening and serving HTTPS (secure) requests. It is a shortcut for http.ListenAndServeTLS(addr, certFile, keyFile, router) Note: this method will block the calling goroutine indefinitely unless an error happens.

func (*Engine) RunUnix 

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

RunUnix attaches the router to a http.Server and starts listening and serving HTTP requests through the specified unix socket (ie. a file). Note: this method will block the calling goroutine indefinitely unless an error happens.

func (*Engine) ServeHTTP 

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

ServeHTTP conforms to the http.Handler interface.

func (*Engine) Server 

func (engine *Engine) Server() *http.Server

Server is used to load stored http server.

func (*Engine) SetConfig 

func (engine *Engine) SetConfig(conf *ServerConfig) (err error)

SetConfig is used to set the engine configuration. Only the valid config will be loaded.

func (*Engine) SetMethodConfig 

func (engine *Engine) SetMethodConfig(path string, mc *MethodConfig)

SetMethodConfig is used to set config on specified path

func (*Engine) Shutdown 

func (engine *Engine) Shutdown(ctx context.Context) error

Shutdown the http server without interrupting active connections.

func (*Engine) Start 

func (engine *Engine) Start() error

Start listen and serve bm engine by given DSN.

func (*Engine) Use 

func (engine *Engine) Use(middleware ...Handler) IRoutes

Use attachs a global middleware to the router. ie. the middleware attached though Use() will be included in the handlers chain for every single request. Even 404, 405, static files... For example, this is the right place for a logger or error management middleware.

func (*Engine) UseFunc 

func (engine *Engine) UseFunc(middleware ...HandlerFunc) IRoutes

UseFunc attachs a global middleware to the router. ie. the middleware attached though UseFunc() will be included in the handlers chain for every single request. Even 404, 405, static files... For example, this is the right place for a logger or error management middleware.

type Handler 

type Handler interface {
	ServeHTTP(c *Context)
}

Handler responds to an HTTP request.

type HandlerFunc 

type HandlerFunc func(*Context)

HandlerFunc http request handler function.

func CORS 

func CORS(allowOriginHosts []string) HandlerFunc

CORS returns the location middleware with default configuration.

func CSRF 

func CSRF(allowHosts []string, allowPattern []string) HandlerFunc

CSRF returns the csrf middleware to prevent invalid cross site request. Only referer is checked currently.

func Criticality 

func Criticality(pathCriticality criticalityPkg.Criticality) HandlerFunc

Criticality is

func Logger 

func Logger() HandlerFunc

Logger is logger middleware

func Recovery 

func Recovery() HandlerFunc

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

func Trace 

func Trace() HandlerFunc

Trace is trace middleware

func (HandlerFunc) ServeHTTP 

func (f HandlerFunc) ServeHTTP(c *Context)

ServeHTTP calls f(ctx).

type IRouter 

type IRouter interface {
	IRoutes
	Group(string, ...HandlerFunc) *RouterGroup
}

IRouter http router framework interface.

type IRoutes 

type IRoutes interface {
	UseFunc(...HandlerFunc) IRoutes
	Use(...Handler) IRoutes

	Handle(string, string, ...HandlerFunc) IRoutes
	HEAD(string, ...HandlerFunc) IRoutes
	GET(string, ...HandlerFunc) IRoutes
	POST(string, ...HandlerFunc) IRoutes
	PUT(string, ...HandlerFunc) IRoutes
	DELETE(string, ...HandlerFunc) IRoutes
}

IRoutes http router interface.

type MethodConfig 

type MethodConfig struct {
	Timeout xtime.Duration
}

MethodConfig is

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)

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.

func (Params) Get 

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

Get 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 RateLimiter 

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

RateLimiter bbr middleware.

func NewRateLimiter 

func NewRateLimiter(conf *bbr.Config) (s *RateLimiter)

NewRateLimiter return a ratelimit middleware.

func (*RateLimiter) Limit 

func (b *RateLimiter) Limit() HandlerFunc

Limit return a bm handler func.

type RouterGroup 

type RouterGroup struct {
	Handlers []HandlerFunc
	// contains filtered or unexported fields
}

RouterGroup is used internally to configure router, a RouterGroup is associated with a prefix and an array of handlers (middleware).

func (*RouterGroup) Any 

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

Any registers a route that matches all the HTTP methods. GET, POST, PUT, PATCH, HEAD, OPTIONS, DELETE, CONNECT, TRACE.

func (*RouterGroup) BasePath 

func (group *RouterGroup) BasePath() string

BasePath router group base path.

func (*RouterGroup) DELETE 

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

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

func (*RouterGroup) GET 

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

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

func (*RouterGroup) Group 

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

Group 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) IRoutes

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

func (*RouterGroup) Handle 

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

Handle registers a new request handle and middleware with the given path and method. The last handler should be the real handler, the other ones should be middleware that can and should be shared among different routes. See the example code in doc.

For HEAD, GET, POST, PUT, and DELETE requests the respective shortcut functions can be used.

This function is intended for bulk loading and to allow the usage of less frequently used, non-standardized or custom methods (e.g. for internal communication with a proxy).

func (*RouterGroup) OPTIONS 

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

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

func (*RouterGroup) PATCH 

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

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

func (*RouterGroup) POST 

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

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

func (*RouterGroup) PUT 

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

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

func (*RouterGroup) SetMethodConfig 

func (group *RouterGroup) SetMethodConfig(config *MethodConfig) *RouterGroup

SetMethodConfig is used to set config on specified method

func (*RouterGroup) Static 

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

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) IRoutes

StaticFS works just like `Static()` but a custom `http.FileSystem` can be used instead. Gin by default user: gin.Dir()

func (*RouterGroup) Use 

func (group *RouterGroup) Use(middleware ...Handler) IRoutes

Use adds middleware to the group, see example code in doc.

func (*RouterGroup) UseFunc 

func (group *RouterGroup) UseFunc(middleware ...HandlerFunc) IRoutes

UseFunc adds middleware to the group, see example code in doc.

type ServerConfig 

type ServerConfig struct {
	Network      string         `dsn:"network"`
	Addr         string         `dsn:"address"`
	Timeout      xtime.Duration `dsn:"query.timeout"`
	ReadTimeout  xtime.Duration `dsn:"query.readTimeout"`
	WriteTimeout xtime.Duration `dsn:"query.writeTimeout"`
}

ServerConfig is the bm server config model

type TraceTransport 

type TraceTransport struct {

	// The actual RoundTripper to use for the request. A nil
	// RoundTripper defaults to http.DefaultTransport.
	http.RoundTripper
	// contains filtered or unexported fields
}

TraceTransport wraps a RoundTripper. If a request is being traced with Tracer, Transport will inject the current span into the headers, and set HTTP related tags on the span.

func NewTraceTransport 

func NewTraceTransport(rt http.RoundTripper, peerService string, internalTags ...trace.Tag) *TraceTransport

NewTraceTransport NewTraceTransport

func (*TraceTransport) RoundTrip 

func (t *TraceTransport) RoundTrip(req *http.Request) (*http.Response, error)

RoundTrip implements the RoundTripper interface

Source Files

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Directories

Path Synopsis
example
Package example is a generated protocol buffer package.
 Package example is a generated protocol buffer package.
Package render is a generated protocol buffer package.
 Package render is a generated protocol buffer package.

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