gin

package module
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 Go to latest Published: Dec 13, 2019 License: MIT Imports: 31 Imported by: 0

README

fork 的gin

最终效果

uid在前端可以传 字符串,int 。如字符串无法转换成int会解析失败

post json 传参数
{
"uid":["111",222]
}

gin解析
type AA struct {
	UID []int `json:"uid"`
}
var a AA
err := c.ShouldBind(&a)

为什么要改

1. string to int

因为老项目中使用的动态语言php，好多uid的类型是 123 也是"123"

gin解析到struct有问题，因为不能更改所有老项目代码，所以只能改gin

找到gin的json decoder 设置在 gin/internal/json 这个“内部包”中，无法修改，只能fork了

2. time.Time format

time.Time 格式化成 "2006-01-02 15:03:04"

修改内容

实际上修改的是标准库的 encoding/json包的内容

但是为了不影响标准库，我拷贝了一份json放在了gin/internal/json中

然后让gin使用我修改后的json包。

代码修改：

包名github.com/gin-gonic/gin 替换成 github.com/chenxiao1990/gin

gin/internal/json/json.go中
import "github.com/chenxiao1990/gin/internal/json/json"


gin/internal/json/json/decode.go  946行增加

if len(s) == 0 {
	v.SetInt(0)
} else {
	n, err := strconv.ParseInt(string(s), 10, 64)
	if err != nil || v.OverflowInt(n) {
		d.saveError(&UnmarshalTypeError{Value: "string " + string(s), Type: v.Type(), Offset: int64(d.readIndex())})
		break
	}
	v.SetInt(n)
}

为了gin输出 time.Time的格式为 "2006-01-02 15:04:05"

gin/internal/json/json/encode.go  456行增加

t := reflect.TypeOf(m)
s := t.Name()
s2 := t.PkgPath()
if s2+"."+s == "time.Time" {
	timeFormart := "2006-01-02 15:04:05"
	b = make([]byte, 0, len(timeFormart)+2)
	b = append(b, '"')
	b = m.(time.Time).AppendFormat(b, timeFormart)
	b = append(b, '"')
}

后续使用可能会遇到的问题

比如你引用了 "github.com/DeanThompson/ginpprof"

会报类型错误

这种 github.com/chenxiao1990 与 github.com/gin-gonic 类型错误 都可以使用下面的方法强制转换

引用原始的gin  
import  ygin "github.com/gin-gonic/gin"

GRouter = gin.Default()
up := unsafe.Pointer(GRouter)
ginpprof.Wrapper((*ygin.Engine)(up))

Documentation

Overview

Package gin implements a HTTP web framework called gin.

See https://gin-gonic.com/ for more information about gin.

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
	MIMEYAML              = binding.MIMEYAML
	BodyBytesKey          = "_gin-gonic/gin/bodybyteskey"
)

Content-Type MIME of the most common data formats.

View Source 
const (
	// DebugMode indicates gin mode is debug.
	DebugMode = "debug"
	// ReleaseMode indicates gin mode is release.
	ReleaseMode = "release"
	// TestMode indicates gin mode is test.
	TestMode = "test"
)
View Source 
const AuthUserKey = "user"

AuthUserKey is the cookie name for user credential in basic auth.

View Source 
const BindKey = "_gin-gonic/gin/bindkey"

BindKey indicates a default bind key.

View Source 
const EnvGinMode = "GIN_MODE"

EnvGinMode indicates environment name for gin mode.

View Source 
const Version = "v1.4.0-dev"

Version is the current gin framework's version.

Variables

View Source 
var DebugPrintRouteFunc func(httpMethod, absolutePath, handlerName string, nuHandlers int)

DebugPrintRouteFunc indicates debug log output format.

View Source 
var DefaultErrorWriter io.Writer = os.Stderr

DefaultErrorWriter is the default io.Writer used by Gin to debug errors

View Source 
var DefaultWriter io.Writer = os.Stdout

DefaultWriter is the default io.Writer used by Gin for debug output and middleware output like Logger() or Recovery(). Note that both Logger and Recovery provides custom ways to configure their output io.Writer. To support coloring in Windows use: 

import "github.com/mattn/go-colorable"
gin.DefaultWriter = colorable.NewColorableStdout()

Functions

func CreateTestContext added in v1.3.0 

func CreateTestContext(w http.ResponseWriter) (c *Context, r *Engine)

CreateTestContext returns a fresh engine and context for testing purposes

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.

func DisableBindValidation 

func DisableBindValidation()

DisableBindValidation closes the default validator.

func DisableConsoleColor added in v1.3.0 

func DisableConsoleColor()

DisableConsoleColor disables color output in the console.

func EnableJsonDecoderDisallowUnknownFields added in v1.4.1 

func EnableJsonDecoderDisallowUnknownFields()

EnableJsonDisallowUnknownFields sets true for binding.EnableDecoderDisallowUnknownFields to call the DisallowUnknownFields method on the JSON Decoder instance.

func EnableJsonDecoderUseNumber added in v1.3.0 

func EnableJsonDecoderUseNumber()

EnableJsonDecoderUseNumber sets true for binding.EnableDecoderUseNumber to call the UseNumber method on the JSON Decoder instance.

func ForceConsoleColor added in v1.4.1 

func ForceConsoleColor()

ForceConsoleColor force color output in the console.

func IsDebugging 

func IsDebugging() bool

IsDebugging returns true if the framework is running in debug mode. Use SetMode(gin.ReleaseMode) to disable debug mode.

func Mode 

func Mode() string

Mode returns currently gin mode.

func SetMode 

func SetMode(value string)

SetMode sets gin mode according to input string.

Types

type Accounts 

type Accounts map[string]string

Accounts defines a key/value for user/pass list of authorized logins.

type Context 

type Context struct {
	Request *http.Request
	Writer  ResponseWriter

	Params Params

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

	// Errors is a list of errors attached to all the handlers/middlewares who used this context.
	Errors errorMsgs

	// Accepted defines a list of manually accepted formats for content negotiation.
	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()

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) AbortWithError 

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

AbortWithError calls `AbortWithStatus()` and `Error()` internally. This method stops the chain, writes the status code and pushes the specified error to `c.Errors`. See Context.Error() for more details.

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) AbortWithStatusJSON added in v1.3.0 

func (c *Context) AbortWithStatusJSON(code int, jsonObj interface{})

AbortWithStatusJSON calls `Abort()` and then `JSON` internally. This method stops the chain, writes the status code and return a JSON body. It also sets the Content-Type as "application/json".

func (*Context) AsciiJSON added in v1.3.0 

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

AsciiJSON serializes the given struct as JSON into the response body with unicode to ASCII string. It also sets the Content-Type as "application/json".

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) BindHeader added in v1.4.1 

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

BindHeader is a shortcut for c.MustBindWith(obj, binding.Header).

func (*Context) BindJSON 

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

BindJSON is a shortcut for c.MustBindWith(obj, binding.JSON).

func (*Context) BindQuery added in v1.3.0 

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

BindQuery is a shortcut for c.MustBindWith(obj, binding.Query).

func (*Context) BindUri added in v1.4.1 

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

BindUri binds the passed struct pointer using binding.Uri. It will abort the request with HTTP 400 if any error occurs.

func (*Context) BindWith 

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

BindWith binds the passed struct pointer using the specified binding engine. See the binding package.

func (*Context) BindXML added in v1.4.1 

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

BindXML is a shortcut for c.MustBindWith(obj, binding.BindXML).

func (*Context) BindYAML added in v1.4.1 

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

BindYAML is a shortcut for c.MustBindWith(obj, binding.YAML).

func (*Context) ClientIP 

func (c *Context) ClientIP() string

ClientIP implements a best effort algorithm to return the real client IP, it parses X-Real-IP and X-Forwarded-For in order to work properly with reverse-proxies such us: nginx or haproxy. Use X-Forwarded-For before X-Real-Ip as nginx uses X-Real-Ip with the proxy's IP.

func (*Context) ContentType 

func (c *Context) ContentType() string

ContentType returns the Content-Type header of the request.

func (*Context) Cookie 

func (c *Context) Cookie(name string) (string, error)

Cookie returns the named cookie provided in the request or ErrNoCookie if not found. And return the named cookie is unescaped. If multiple cookies match the given name, only one cookie will be returned.

func (*Context) Copy 

func (c *Context) Copy() *Context

Copy returns a copy of the current context that can be safely used outside the request's scope. This has to be used when the context has to be passed to a goroutine.

func (*Context) Data 

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

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

func (*Context) DataFromReader added in v1.3.0 

func (c *Context) DataFromReader(code int, contentLength int64, contentType string, reader io.Reader, extraHeaders map[string]string)

DataFromReader writes the specified reader into the body stream and updates the HTTP code.

func (*Context) Deadline 

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

Deadline returns the time when work done on behalf of this context should be canceled. Deadline returns ok==false when no deadline is set. Successive calls to Deadline return the same results.

func (*Context) DefaultPostForm 

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

DefaultPostForm returns the specified key from a POST urlencoded form or multipart form when it exists, otherwise it returns the specified defaultValue string. See: PostForm() and GetPostForm() for further information.

func (*Context) DefaultQuery 

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) Done 

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

Done returns a channel that's closed when work done on behalf of this context should be canceled. Done may return nil if this context can never be canceled. Successive calls to Done return the same value.

func (*Context) Err 

func (c *Context) Err() error

Err returns a non-nil error value after Done is closed, successive calls to Err return the same error. If Done is not yet closed, Err returns nil. If Done is closed, Err returns a non-nil error explaining why: Canceled if the context was canceled or DeadlineExceeded if the context's deadline passed.

func (*Context) Error 

func (c *Context) Error(err error) *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. Error will panic if err is nil.

func (*Context) File 

func (c *Context) File(filepath string)

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

func (*Context) FileAttachment added in v1.4.1 

func (c *Context) FileAttachment(filepath, filename string)

FileAttachment writes the specified file into the body stream in an efficient way On the client side, the file will typically be downloaded with the given filename

func (*Context) FormFile added in v1.3.0 

func (c *Context) FormFile(name string) (*multipart.FileHeader, error)

FormFile returns the first file for the provided form key.

func (*Context) FullPath added in v1.4.1 

func (c *Context) FullPath() string

FullPath returns a matched route full path. For not found routes returns an empty string. 

router.GET("/user/:id", func(c *gin.Context) {
    c.FullPath() == "/user/:id" // true
})

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) GetBool added in v1.3.0 

func (c *Context) GetBool(key string) (b bool)

GetBool returns the value associated with the key as a boolean.

func (*Context) GetDuration added in v1.3.0 

func (c *Context) GetDuration(key string) (d time.Duration)

GetDuration returns the value associated with the key as a duration.

func (*Context) GetFloat64 added in v1.3.0 

func (c *Context) GetFloat64(key string) (f64 float64)

GetFloat64 returns the value associated with the key as a float64.

func (*Context) GetHeader added in v1.3.0 

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

GetHeader returns value from request headers.

func (*Context) GetInt added in v1.3.0 

func (c *Context) GetInt(key string) (i int)

GetInt returns the value associated with the key as an integer.

func (*Context) GetInt64 added in v1.3.0 

func (c *Context) GetInt64(key string) (i64 int64)

GetInt64 returns the value associated with the key as an integer.

func (*Context) GetPostForm 

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

GetPostForm is like PostForm(key). It returns the specified key from a POST urlencoded form or multipart form when it exists `(value, true)` (even when the value is an empty string), otherwise it returns ("", false). For example, during a PATCH request to update the user's email: 

    email=mail@example.com  -->  ("mail@example.com", true) := GetPostForm("email") // set email to "mail@example.com"
	   email=                  -->  ("", true) := GetPostForm("email") // set email to ""
                            -->  ("", false) := GetPostForm("email") // do nothing with email

func (*Context) GetPostFormArray 

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

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

func (*Context) GetPostFormMap added in v1.3.0 

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

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

func (*Context) GetQuery 

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 

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 v1.3.0 

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) GetRawData added in v1.3.0 

func (c *Context) GetRawData() ([]byte, error)

GetRawData return stream data.

func (*Context) GetString added in v1.3.0 

func (c *Context) GetString(key string) (s string)

GetString returns the value associated with the key as a string.

func (*Context) GetStringMap added in v1.3.0 

func (c *Context) GetStringMap(key string) (sm map[string]interface{})

GetStringMap returns the value associated with the key as a map of interfaces.

func (*Context) GetStringMapString added in v1.3.0 

func (c *Context) GetStringMapString(key string) (sms map[string]string)

GetStringMapString returns the value associated with the key as a map of strings.

func (*Context) GetStringMapStringSlice added in v1.3.0 

func (c *Context) GetStringMapStringSlice(key string) (smss map[string][]string)

GetStringMapStringSlice returns the value associated with the key as a map to a slice of strings.

func (*Context) GetStringSlice added in v1.3.0 

func (c *Context) GetStringSlice(key string) (ss []string)

GetStringSlice returns the value associated with the key as a slice of strings.

func (*Context) GetTime added in v1.3.0 

func (c *Context) GetTime(key string) (t time.Time)

GetTime returns the value associated with the key as time.

func (*Context) HTML 

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

HTML 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) Handler added in v1.3.0 

func (c *Context) Handler() HandlerFunc

Handler returns the main handler.

func (*Context) HandlerName 

func (c *Context) HandlerName() string

HandlerName returns the main handler's name. For example if the handler is "handleGetUsers()", this function will return "main.handleGetUsers".

func (*Context) HandlerNames added in v1.4.1 

func (c *Context) HandlerNames() []string

HandlerNames returns a list of all registered handlers for this context in descending order, following the semantics of HandlerName()

func (*Context) Header 

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

Header is a intelligent shortcut for c.Writer.Header().Set(key, value). It writes a header in the response. If value == "", this method removes the header `c.Writer.Header().Del(key)`

func (*Context) IndentedJSON 

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

IndentedJSON serializes the given struct as pretty JSON (indented + endlines) into the response body. It also sets the Content-Type as "application/json". WARNING: we recommend to use this only for development purposes since printing pretty JSON is more CPU and bandwidth consuming. Use Context.JSON() instead.

func (*Context) IsAborted 

func (c *Context) IsAborted() bool

IsAborted returns true if the current context was aborted.

func (*Context) IsWebsocket added in v1.3.0 

func (c *Context) IsWebsocket() bool

IsWebsocket returns true if the request headers indicate that a websocket handshake is being initiated by the client.

func (*Context) JSON 

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

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

func (*Context) JSONP added in v1.3.0 

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

JSONP serializes the given struct as JSON into the response body. It add padding to response body to request data from a server residing in a different domain than the client. It also sets the Content-Type as "application/javascript".

func (*Context) MultipartForm added in v1.3.0 

func (c *Context) MultipartForm() (*multipart.Form, error)

MultipartForm is the parsed multipart form, including file uploads.

func (*Context) MustBindWith added in v1.3.0 

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

MustBindWith binds the passed struct pointer using the specified binding engine. It will abort the request with HTTP 400 if any error occurs. See the binding package.

func (*Context) MustGet 

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

MustGet returns the value for the given key if it exists, otherwise it panics.

func (*Context) Negotiate 

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

Negotiate calls different Render according acceptable Accept format.

func (*Context) NegotiateFormat 

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

NegotiateFormat returns an acceptable Accept format.

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 GitHub.

func (*Context) Param 

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

Param returns the value of the URL param. It is a shortcut for c.Params.ByName(key) 

router.GET("/user/:id", func(c *gin.Context) {
    // a GET request to /user/john
    id := c.Param("id") // id == "john"
})

func (*Context) PostForm 

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

PostForm returns the specified key from a POST urlencoded form or multipart form when it exists, otherwise it returns an empty string `("")`.

func (*Context) PostFormArray 

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

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

func (*Context) PostFormMap added in v1.3.0 

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

PostFormMap returns a map for a given form key.

func (*Context) ProtoBuf added in v1.4.1 

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

ProtoBuf serializes the given struct as ProtoBuf into the response body.

func (*Context) PureJSON added in v1.4.1 

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

PureJSON serializes the given struct as JSON into the response body. PureJSON, unlike JSON, does not replace special html characters with their unicode entities.

func (*Context) Query 

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 

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 v1.3.0 

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 writes the response headers and calls render.Render to render data.

func (*Context) SSEvent 

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

SSEvent writes a Server-Sent Event into the body stream.

func (*Context) SaveUploadedFile added in v1.3.0 

func (c *Context) SaveUploadedFile(file *multipart.FileHeader, dst string) error

SaveUploadedFile uploads the form file to specific dst.

func (*Context) SecureJSON added in v1.3.0 

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

SecureJSON serializes the given struct as Secure JSON into the response body. Default prepends "while(1)," to response body if the given struct is array values. It also sets the Content-Type as "application/json".

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) SetAccepted 

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

SetAccepted sets Accept header data.

func (*Context) SetCookie 

func (c *Context) SetCookie(name, value string, maxAge int, path, domain string, secure, httpOnly bool)

SetCookie adds a Set-Cookie header to the ResponseWriter's headers. The provided cookie must have a valid Name. Invalid cookies may be silently dropped.

func (*Context) ShouldBind added in v1.3.0 

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

ShouldBind 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. Like c.Bind() but this method does not set the response status code to 400 and abort if the json is not valid.

func (*Context) ShouldBindBodyWith added in v1.3.0 

func (c *Context) ShouldBindBodyWith(obj interface{}, bb binding.BindingBody) (err error)

ShouldBindBodyWith is similar with ShouldBindWith, but it stores the request body into the context, and reuse when it is called again.

NOTE: This method reads the body before binding. So you should use ShouldBindWith for better performance if you need to call only once.

func (*Context) ShouldBindHeader added in v1.4.1 

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

ShouldBindHeader is a shortcut for c.ShouldBindWith(obj, binding.Header).

func (*Context) ShouldBindJSON added in v1.3.0 

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

ShouldBindJSON is a shortcut for c.ShouldBindWith(obj, binding.JSON).

func (*Context) ShouldBindQuery added in v1.3.0 

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

ShouldBindQuery is a shortcut for c.ShouldBindWith(obj, binding.Query).

func (*Context) ShouldBindUri added in v1.4.1 

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

ShouldBindUri binds the passed struct pointer using the specified binding engine.

func (*Context) ShouldBindWith added in v1.3.0 

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

ShouldBindWith binds the passed struct pointer using the specified binding engine. See the binding package.

func (*Context) ShouldBindXML added in v1.4.1 

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

ShouldBindXML is a shortcut for c.ShouldBindWith(obj, binding.XML).

func (*Context) ShouldBindYAML added in v1.4.1 

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

ShouldBindYAML is a shortcut for c.ShouldBindWith(obj, binding.YAML).

func (*Context) Status 

func (c *Context) Status(code int)

Status sets the HTTP response code.

func (*Context) Stream 

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

Stream sends a streaming response and returns a boolean indicates "Is client disconnected in middle of stream"

func (*Context) String 

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

String writes the given string into the response body.

func (*Context) Value 

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

Value returns the value associated with this context for key, or nil if no value is associated with key. Successive calls to Value with the same key returns the same result.

func (*Context) XML 

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

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

func (*Context) YAML 

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

YAML serializes the given struct as YAML into the response body.

type Engine 

type Engine struct {
	RouterGroup

	// 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
	ForwardedByClientIP    bool

	// #726 #755 If enabled, it will thrust some headers starting with
	// 'X-AppEngine...' for better integration with that PaaS.
	AppEngine bool

	// 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

	// Value of 'maxMemory' param that is given to http.Request's ParseMultipartForm
	// method call.
	MaxMultipartMemory int64

	HTMLRender render.HTMLRender
	FuncMap    template.FuncMap
	// 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 Default 

func Default() *Engine

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

func New 

func New() *Engine

New returns a new blank Engine instance without any middleware attached. By default the configuration is: - RedirectTrailingSlash: true - RedirectFixedPath: false - HandleMethodNotAllowed: false - ForwardedByClientIP: true - UseRawPath: false - UnescapePathValues: true

func (*Engine) Delims added in v1.3.0 

func (engine *Engine) Delims(left, right string) *Engine

Delims sets template left and right delims and returns a Engine instance.

func (*Engine) HandleContext added in v1.3.0 

func (engine *Engine) HandleContext(c *Context)

HandleContext re-enter a context that has been rewritten. This can be done by setting c.Request.URL.Path to your new target. Disclaimer: You can loop yourself to death with this, use wisely.

func (*Engine) LoadHTMLFiles 

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

LoadHTMLFiles loads a slice of HTML files and associates the result with HTML renderer.

func (*Engine) LoadHTMLGlob 

func (engine *Engine) LoadHTMLGlob(pattern string)

LoadHTMLGlob loads HTML files identified by glob pattern and associates the result with HTML renderer.

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) Routes 

func (engine *Engine) Routes() (routes RoutesInfo)

Routes returns a slice of registered routes, including some useful information, such as: the http method, path and the handler name.

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) RunFd added in v1.4.1 

func (engine *Engine) RunFd(fd int) (err error)

RunFd attaches the router to a http.Server and starts listening and serving HTTP requests through the specified file descriptor. 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) SecureJsonPrefix added in v1.3.0 

func (engine *Engine) SecureJsonPrefix(prefix string) *Engine

SecureJsonPrefix sets the secureJsonPrefix used in Context.SecureJSON.

func (*Engine) ServeHTTP 

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

ServeHTTP conforms to the http.Handler interface.

func (*Engine) SetFuncMap added in v1.3.0 

func (engine *Engine) SetFuncMap(funcMap template.FuncMap)

SetFuncMap sets the FuncMap used for template.FuncMap.

func (*Engine) SetHTMLTemplate 

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

SetHTMLTemplate associate a template with HTML renderer.

func (*Engine) Use 

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

Use attaches 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.

type Error 

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

Error represents a error's specification.

func (Error) Error 

func (msg Error) Error() string

Error implements the error interface.

func (*Error) IsType 

func (msg *Error) IsType(flags ErrorType) bool

IsType judges one error.

func (*Error) JSON 

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

JSON creates a properly formatted JSON

func (*Error) MarshalJSON 

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

MarshalJSON implements the json.Marshaller interface.

func (*Error) SetMeta 

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

SetMeta sets the error's meta data.

func (*Error) SetType 

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

SetType sets the error's type.

type ErrorType 

type ErrorType uint64

ErrorType is an unsigned 64-bit error code as defined in the gin spec. 

const (
	// ErrorTypeBind is used when Context.Bind() fails.
	ErrorTypeBind ErrorType = 1 << 63
	// ErrorTypeRender is used when Context.Render() fails.
	ErrorTypeRender ErrorType = 1 << 62
	// ErrorTypePrivate indicates a private error.
	ErrorTypePrivate ErrorType = 1 << 0
	// ErrorTypePublic indicates a public error.
	ErrorTypePublic ErrorType = 1 << 1
	// ErrorTypeAny indicates any other error.
	ErrorTypeAny ErrorType = 1<<64 - 1
	// ErrorTypeNu indicates any other error.
	ErrorTypeNu = 2
)

type H 

type H map[string]interface{}

H is a shortcut for map[string]interface{}

func (H) MarshalXML 

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

MarshalXML allows type H to be used with xml.Marshal.

type HandlerFunc 

type HandlerFunc func(*Context)

HandlerFunc defines the handler used by gin middleware as return value.

func BasicAuth 

func BasicAuth(accounts Accounts) HandlerFunc

BasicAuth returns a Basic HTTP Authorization middleware. 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

BasicAuthForRealm returns a Basic HTTP Authorization middleware. 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. If the realm is empty, "Authorization Required" will be used by default. (see http://tools.ietf.org/html/rfc2617#section-1.2)

func Bind 

func Bind(val interface{}) HandlerFunc

Bind is a helper function for given interface object and returns a Gin middleware.

func ErrorLogger 

func ErrorLogger() HandlerFunc

ErrorLogger returns a handlerfunc for any error type.

func ErrorLoggerT 

func ErrorLoggerT(typ ErrorType) HandlerFunc

ErrorLoggerT returns a handlerfunc for a given error type.

func Logger 

func Logger() HandlerFunc

Logger instances a Logger middleware that will write the logs to gin.DefaultWriter. By default gin.DefaultWriter = os.Stdout.

func LoggerWithConfig added in v1.4.1 

func LoggerWithConfig(conf LoggerConfig) HandlerFunc

LoggerWithConfig instance a Logger middleware with config.

func LoggerWithFormatter added in v1.4.1 

func LoggerWithFormatter(f LogFormatter) HandlerFunc

LoggerWithFormatter instance a Logger middleware with the specified log format function.

func LoggerWithWriter 

func LoggerWithWriter(out io.Writer, notlogged ...string) HandlerFunc

LoggerWithWriter instance a Logger middleware with the specified writer buffer. Example: os.Stdout, a file opened in write mode, a socket...

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

RecoveryWithWriter returns a middleware for a given writer that recovers from any panics and writes a 500 if there was one.

func WrapF 

func WrapF(f http.HandlerFunc) HandlerFunc

WrapF is a helper function for wrapping http.HandlerFunc and returns a Gin middleware.

func WrapH 

func WrapH(h http.Handler) HandlerFunc

WrapH is a helper function for wrapping http.Handler and returns a Gin middleware.

type HandlersChain 

type HandlersChain []HandlerFunc

HandlersChain defines a HandlerFunc array.

func (HandlersChain) Last 

func (c HandlersChain) Last() HandlerFunc

Last returns the last handler in the chain. ie. the last handler is the main own.

type IRouter 

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

IRouter defines all router handle interface includes single and group router.

type IRoutes 

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

	Handle(string, string, ...HandlerFunc) IRoutes
	Any(string, ...HandlerFunc) IRoutes
	GET(string, ...HandlerFunc) IRoutes
	POST(string, ...HandlerFunc) IRoutes
	DELETE(string, ...HandlerFunc) IRoutes
	PATCH(string, ...HandlerFunc) IRoutes
	PUT(string, ...HandlerFunc) IRoutes
	OPTIONS(string, ...HandlerFunc) IRoutes
	HEAD(string, ...HandlerFunc) IRoutes

	StaticFile(string, string) IRoutes
	Static(string, string) IRoutes
	StaticFS(string, http.FileSystem) IRoutes
}

IRoutes defines all router handle interface.

type LogFormatter added in v1.4.1 

type LogFormatter func(params LogFormatterParams) string

LogFormatter gives the signature of the formatter function passed to LoggerWithFormatter

type LogFormatterParams added in v1.4.1 

type LogFormatterParams struct {
	Request *http.Request

	// TimeStamp shows the time after the server returns a response.
	TimeStamp time.Time
	// StatusCode is HTTP response code.
	StatusCode int
	// Latency is how much time the server cost to process a certain request.
	Latency time.Duration
	// ClientIP equals Context's ClientIP method.
	ClientIP string
	// Method is the HTTP method given to the request.
	Method string
	// Path is a path the client requests.
	Path string
	// ErrorMessage is set if error has occurred in processing the request.
	ErrorMessage string

	// BodySize is the size of the Response Body
	BodySize int
	// Keys are the keys set on the request's context.
	Keys map[string]interface{}
	// contains filtered or unexported fields
}

LogFormatterParams is the structure any formatter will be handed when time to log comes

func (*LogFormatterParams) IsOutputColor added in v1.4.1 

func (p *LogFormatterParams) IsOutputColor() bool

IsOutputColor indicates whether can colors be outputted to the log.

func (*LogFormatterParams) MethodColor added in v1.4.1 

func (p *LogFormatterParams) MethodColor() string

MethodColor is the ANSI color for appropriately logging http method to a terminal.

func (*LogFormatterParams) ResetColor added in v1.4.1 

func (p *LogFormatterParams) ResetColor() string

ResetColor resets all escape attributes.

func (*LogFormatterParams) StatusCodeColor added in v1.4.1 

func (p *LogFormatterParams) StatusCodeColor() string

StatusCodeColor is the ANSI color for appropriately logging http status code to a terminal.

type LoggerConfig added in v1.4.1 

type LoggerConfig struct {
	// Optional. Default value is gin.defaultLogFormatter
	Formatter LogFormatter

	// Output is a writer where logs are written.
	// Optional. Default value is gin.DefaultWriter.
	Output io.Writer

	// SkipPaths is a url path array which logs are not written.
	// Optional.
	SkipPaths []string
}

LoggerConfig defines the config for Logger middleware.

type Negotiate 

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

Negotiate contains all negotiations data.

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 ResponseWriter 

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

	// Returns the HTTP response status code of the current request.
	Status() int

	// Returns the number of bytes already written into the response http body.
	// See Written()
	Size() int

	// Writes the string into the response body.
	WriteString(string) (int, error)

	// Returns true if the response body was already written.
	Written() bool

	// Forces to write the http header (status code + headers).
	WriteHeaderNow()

	// get the http.Pusher for server push
	Pusher() http.Pusher
}

ResponseWriter ...

type RouteInfo 

type RouteInfo struct {
	Method      string
	Path        string
	Handler     string
	HandlerFunc HandlerFunc
}

RouteInfo represents a request route's specification which contains method and path and its handler.

type RouterGroup 

type RouterGroup struct {
	Handlers HandlersChain
	// 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 returns the base path of router group. For example, if v := router.Group("/rest/n/v1/api"), v.BasePath() is "/rest/n/v1/api".

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 middlewares or the same path prefix. For example, all the routes that use a common middleware 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 GitHub.

For GET, POST, PUT, PATCH 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) 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) StaticFile 

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

StaticFile registers a single route in order to serve a single file of the local filesystem. router.StaticFile("favicon.ico", "./resources/favicon.ico")

func (*RouterGroup) Use 

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

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

type RoutesInfo 

type RoutesInfo []RouteInfo

RoutesInfo defines a RouteInfo array.

Source Files

View all Source files

Directories

Path Synopsis
internal
json
json/json
Package json implements encoding and decoding of JSON as defined in RFC 7159.
 Package json implements encoding and decoding of JSON as defined in RFC 7159.

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