Request

URI

func (ctx *RequestContext) Host() []byte 
func (ctx *RequestContext) FullPath() string 
func (ctx *RequestContext) SetFullPath(p string)
func (ctx *RequestContext) Path() []byte 
func (ctx *RequestContext) Param(key string) string
func (ctx *RequestContext) Query(key string) string
func (ctx *RequestContext) DefaultQuery(key, defaultValue string) string
func (ctx *RequestContext) GetQuery(key string) (string, bool) 
func (ctx *RequestContext) QueryArgs() *protocol.Args
func (ctx *RequestContext) URI() *protocol.URI

Host

Obtain the requested host address.

Function Signature:

func (ctx *RequestContext) Host() []byte

Example Code:

// GET http://example.com
h.GET("/", func(c context.Context, ctx *app.RequestContext) {
    host := ctx.Host() // host == []byte("example.com")
})

FullPath

Get the complete path of the matched route, and return an empty string for the unmatched route.

Function Signature:

func (ctx *RequestContext) FullPath() string

Example Code:

h := server.Default(server.WithHandleMethodNotAllowed(true))

// GET http://example.com/user/bar
h.GET("/user/:name", func(c context.Context, ctx *app.RequestContext) {
    fpath := ctx.FullPath() // fpath == "/user/:name"
})

// GET http://example.com/bar
h.NoRoute(func(c context.Context, ctx *app.RequestContext) {
    fpath := ctx.FullPath() // fpath == ""
})

// POST http://example.com/user/bar
h.NoMethod(func(c context.Context, ctx *app.RequestContext) {
    fpath := ctx.FullPath() // fpath == ""
})

SetFullPath

Set the value of FullPath.

Note: FullPath is assigned during routing lookup, and usually you do not need to use SetFullPath to overwrite it.

Function Signature:

func (ctx *RequestContext) SetFullPath(p string)

Example Code:

h.GET("/user/:name", func(c context.Context, ctx *app.RequestContext) {
    ctx.SetFullPath("/v1/user/:name")
    fpath := ctx.FullPath() // fpath == "/v1/user/:name"
})

Path

Obtain the path of the request.

Note: When parameter routing occurs, Path provides the named path after parameter matching, while FullPath provides the original path.

Function Signature:

func (ctx *RequestContext) Path() []byte

Example Code:

// GET http://example.com/user/bar
h.GET("/user/:name", func(c context.Context, ctx *app.RequestContext) {
    path := ctx.Path() // path == []byte("/user/bar")
})

Param

Obtain the value of routing parameters.

Function Signature:

func (ctx *RequestContext) Param(key string) string

Example Code:

// GET http://example.com/user/bar
h.GET("/user/:name", func(c context.Context, ctx *app.RequestContext) {
    name := ctx.Param("name") // name == "bar"
    id := ctx.Param("id") // id == ""
})

Query

Get the value of the attribute specified in the route Query String parameter. If no empty string is returned.

Function Signature:

func (ctx *RequestContext) Query(key string) string

Example Code:

// GET http://example.com/user?name=bar
h.GET("/user", func(c context.Context, ctx *app.RequestContext) {
    name := ctx.Query("name") // name == "bar"
    id := ctx.Query("id") // id == ""
})

DefaultQuery

Obtain the value of the specified attribute in the Query String parameter of the route, and if it does not return the default value set.

Function Signature:

func (ctx *RequestContext) DefaultQuery(key, defaultValue string) string

Example Code:

// GET http://example.com/user?name=bar&&age=
h.GET("/user", func(c context.Context, ctx *app.RequestContext) {
    name := ctx.DefaultQuery("name", "tom") // name == "bar"
    id := ctx.DefaultQuery("id", "123") // id == "123"
    age := ctx.DefaultQuery("age", "45") // age == ""
})

GetQuery

Obtain the value of the specified attribute in the Query String parameter of the route and whether the attribute exists.

Function Signature:

func (ctx *RequestContext) GetQuery(key string) (string, bool)

Example Code:

// GET http://example.com/user?name=bar&&age=
h.GET("/user", func(c context.Context, ctx *app.RequestContext) {
    name, hasName := ctx.GetQuery("name") // name == "bar", hasName == true
    id, hasId := ctx.GetQuery("id") // id == "", hasId == false
    age, hasAge := ctx.GetQuery("age") // age == "", hasAge == true
})

QueryArgs

Obtain the Query String parameter object for the route.

Function Signature:

func (ctx *RequestContext) QueryArgs() *protocol.Args

Args

The Args object provides the following methods to obtain/set Query String parameters.

Function Signature	Description
`func (a *Args) Set(key, value string)`	Set the value of Args object key
`func (a *Args) Reset()`	Reset Args Object
`func (a Args) CopyTo(dst Args)`	Copy Args object to dst
`func (a *Args) Del(key string)`	Delete the key value pair of Args object key
`func (a *Args) DelBytes(key []byte)`	Delete key value pairs of Args object byte array type key
`func (a *Args) Has(key string) bool`	Obtain whether the Args object has a key value pair for the key
`func (a *Args) String() string`	Convert Args object to Query String of string type
`func (a *Args) QueryString() []byte`	Convert Args object to a Query String of byte array type
`func (a *Args) ParseBytes(b []byte)`	Parsing byte arrays and storing key value pairs in Args object
`func (a *Args) Peek(key string) []byte`	Obtain the value of Args object key
`func (a *Args) PeekExists(key string) (string, bool)`	Obtain the value of Args object key and its existence
`func (a *Args) Len() int`	Obtain the number of Args object key-value pairs
`func (a *Args) AppendBytes(dst []byte) []byte`	Append Args object Query String to dst and return
`func (a *Args) VisitAll(f func(key, value []byte))`	Visit all key value pairs of Args object
`func (a *Args) WriteTo(w io.Writer) (int64, error)`	Write Args object Query String to io.Writer
`func (a *Args) Add(key, value string)`	Add Args object key as key value

Example Code:

// GET http://example.com/user?name=bar&&age=&&pets=dog&&pets=cat
h.GET("/user", func(c context.Context, ctx *app.RequestContext) {
    args := ctx.QueryArgs()

    // get information from args
    s := args.String()                    // s == "name=bar&age=&pets=dog&pets=cat"
    qs := args.QueryString()              // qs == []byte("name=bar&age=&pets=dog&pets=cat")
    cpqs := args.AppendBytes([]byte(nil)) // cpqs == []byte("name=bar&age=&pets=dog&pets=cat")
    name := args.Peek("name")             // name == []byte("bar")
    hasName := args.Has("name")           // hasName == true
    age, hasAge := args.PeekExists("age") // age == "", hasAge == true
    len := args.Len()                     // len == 4

    args.VisitAll(func(key, value []byte) {
        // 1. key == []byte("name"), value == []byte("bar")
        // 2. key == []byte("age"), value == nil
        // 3. key == []byte("pets"), value == []byte("dog")
        // 4. key == []byte("pets"), value == []byte("cat")
    })

    // send information to io.Writer
    req := protocol.AcquireRequest()
	n, err := args.WriteTo(req.BodyWriter())
    // n == 31 err == nil
	s := req.BodyBuffer().String()
    // s == "name=bar&age=&pets=dog&pets=cat"
	
    // change args
    var newArgs protocol.Args
    args.CopyTo(&newArgs)

    newArgs.Set("version", "v1")
    version := newArgs.Peek("version") //version == []byte("v1")

    newArgs.Del("age")
    hasAgeAfterDel := newArgs.Has("age") // hasAgeAfterDel == false

    newArgs.DelBytes([]byte("name"))
    hasNameAfterDel := newArgs.Has("name") // hasNameAfterDel == false

    newArgs.Add("name", "foo")
    newName := newArgs.Peek("name") //newName == []byte("foo")

    newArgs.Reset()
    empty := newArgs.String() // empty == ""

    // parse args
    var newArgs2 protocol.Args
    newArgs2.ParseBytes([]byte("name=bar&age=20"))
    nqs2 := newArgs2.String() // nqs2 == "name=bar&age=20"
})

URI

Return the requested URI object.

Function Signature:

func (ctx *RequestContext) URI() *protocol.URI

URI Object

The URI object provides the following methods to obtain/set URI.

Function Signature	Description
`func (u URI) CopyTo(dst URI)`	Copy a copy of the URI object to dst
`func (u URI) QueryArgs() Args`	Get Args
`func (u *URI) Hash() []byte`	Obtain Hash value, such as http://example.com/user?baz=123#qwe Hash is qwe
`func (u *URI) SetHash(hash string)`	Set Hash
`func (u *URI) SetHashBytes(hash []byte)`	Set Hash of type `[]byte`
`func (u *URI) Username() []byte`	Get Username
`func (u *URI) SetUsername(username string)`	Set Username
`func (u *URI) SetUsernameBytes(username []byte)`	Set Username of type `[]byte`
`func (u *URI) Password() []byte`	Get Password
`func (u *URI) SetPassword(password string)`	Set Password
`func (u *URI) SetPasswordBytes(password []byte)`	Set Password of type `[]byte`
`func (u *URI) QueryString() []byte`	Get `Query String`, such as http://example.com/user?baz=123 `Query String` is baz=123
`func (u *URI) SetQueryString(queryString string)`	Set `Query String`
`func (u *URI) SetQueryStringBytes(queryString []byte)`	Set `Query String` of type `[]byte`
`func (u *URI) Path() []byte`	Get Path, such as http://example.com/user/he%20rtz Path is /user/he rtz
`func (u *URI) PathOriginal() []byte`	Get Unescaped Path, such as http://example.com/user/he%20rtz Path is /user/he%20rtz
`func (u *URI) SetPath(path string)`	Set Path
`func (u *URI) SetPathBytes(path []byte)`	Set Path of type `[]byte`
`func (u *URI) String() string`	Obtain the complete URI, such as http://example.com/user?baz=123 complete URI is http://example.com/user?baz=123
`func (u *URI) FullURI() []byte`	Obtain the complete URI of type `[]byte`
`func (u *URI) Scheme() []byte`	Obtain protocol, such as http
`func (u *URI) SetScheme(scheme string)`	Set protocol
`func (u *URI) SetSchemeBytes(scheme []byte)`	Set protocol of type `[]byte`
`func (u *URI) Host() []byte`	Set Host, such as http://example.com/user Host is example.com
`func (u *URI) SetHost(host string)`	Set Host
`func (u *URI) SetHostBytes(host []byte)`	Set Host of type `[]byte`
`func (u *URI) LastPathSegment() []byte`	Obtain the last part of Path, for example, the last part of Path /foo/bar/baz.html is baz.html
`func (u *URI) Update(newURI string)`	Update URI
`func (u *URI) UpdateBytes(newURI []byte)`	Update URI of type `[]byte`
`func (u *URI) Parse(host, uri []byte)`	Initialize URI
`func (u *URI) AppendBytes(dst []byte) []byte`	Assign the complete URI to dst and return dst
`func (u *URI) RequestURI() []byte`	Get RequestURI, such as http://example.com/user?baz=123 RequestURI is /user?baz=123
`func (u *URI) Reset()`	Reset URI

// RequestHeader
func (h *RequestHeader) Add(key, value string)
func (h *RequestHeader) Set(key, value string)
func (h *RequestHeader) Header() []byte
func (h *RequestHeader) String() string
func (h *RequestHeader) VisitAll(f func(key, value []byte))

// RequestContext
func (ctx *RequestContext) IsGet() bool 
func (ctx *RequestContext) IsHead() bool
func (ctx *RequestContext) IsPost() bool
func (ctx *RequestContext) Method() []byte
func (ctx *RequestContext) ContentType() []byte
func (ctx *RequestContext) IfModifiedSince(lastModified time.Time) bool 
func (ctx *RequestContext) Cookie(key string) []byte
func (ctx *RequestContext) UserAgent() []byte
func (ctx *RequestContext) GetHeader(key string) []byte

Add

Add or set the header with the key as key.

Note: Add is usually used to set multiple headers for the same key. To set a single header for the same key, use Set. When used as a header for Content Type, Content Length, Connection, Cookie, Transfer Encoding, Host, User Agent, etc., using multiple Add will overwrite the old values.

Function Signature:

func (h *RequestHeader) Add(key, value string)

Example Code:

hertz.GET("/example", func(c context.Context, ctx *app.RequestContext) {
	ctx.Request.Header.Add("hertz1", "value1")
	ctx.Request.Header.Add("hertz1", "value2")
	ctx.Request.Header.SetContentTypeBytes([]byte("application/x-www-form-urlencoded"))
	contentType1 := ctx.Request.Header.ContentType() 
    // contentType1 == []byte("application/x-www-form-urlencoded")
	ctx.Request.Header.Add("Content-Type", "application/json; charset=utf-8")
	hertz1 := ctx.Request.Header.GetAll("hertz1") 
    // hertz1 == []string{"value1", "value2"}
	contentType2 := ctx.Request.Header.ContentType() 
    // contentType2 == []byte("application/json; charset=utf-8")
	})

Set

Set the Header key value.

Note: Set is usually used to set a single header for the same key. To set multiple headers for the same key, use Add.

Function Signature:

func (h *RequestHeader) Set(key, value string)

Example Code:

hertz.GET("/example", func(c context.Context, ctx *app.RequestContext) {
	ctx.Request.Header.Set("hertz1", "value1")
	ctx.Request.Header.Set("hertz1", "value2")
	ctx.Request.Header.SetContentTypeBytes([]byte("application/x-www-form-urlencoded"))
	contentType1 := ctx.Request.Header.ContentType() 
    // contentType1 == []byte("application/x-www-form-urlencoded")
	ctx.Request.Header.Set("Content-Type", "application/json; charset=utf-8")
	hertz1 := ctx.Request.Header.GetAll("hertz1")    
    // hertz1 == []string{"value2"}
	contentType2 := ctx.Request.Header.ContentType() 
    // contentType2 == []byte("application/json; charset=utf-8")
	})

Header

Obtain the complete header of type []byte.

Function Signature:

func (h *RequestHeader) Header() []byte

Example Code:

hertz.GET("/example", func(c context.Context, ctx *app.RequestContext) {
		ctx.Request.Header.Set("hertz1", "value1")
		header := ctx.Request.Header.Header()
		// header == []byte("GET /example HTTP/1.1
		//User-Agent: PostmanRuntime-ApipostRuntime/1.1.0
		//Host: localhost:8888
		//Cache-Control: no-cache
		//Accept: */*
		//Accept-Encoding: gzip, deflate, br
		//Connection: keep-alive
		//Hertz1: value1")
	})

String

Obtain the complete header.

Function Signature:

func (h *RequestHeader) String() string

Example Code:

hertz.GET("/example", func(c context.Context, ctx *app.RequestContext) {
		ctx.Request.Header.Set("hertz1", "value1")
		header := ctx.Request.Header.String()
		// header == "GET /example HTTP/1.1
		//User-Agent: PostmanRuntime-ApipostRuntime/1.1.0
		//Host: localhost:8888
		//Cache-Control: no-cache
		//Accept: */*
		//Accept-Encoding: gzip, deflate, br
		//Connection: keep-alive
		//Hertz1: value1"
	})

VisitAll Header

Traverse the key values of all headers and execute the f function.

Function Signature:

func (h *RequestHeader) VisitAll(f func(key, value []byte))

Example Code:

hertz.GET("/example", func(c context.Context, ctx *app.RequestContext) {
	ctx.Request.Header.Add("Hertz1", "value1")
	ctx.Request.Header.Add("Hertz1", "value2")

	var hertzString []string
	ctx.Request.Header.VisitAll(func(key, value []byte) {
		if string(key) == "Hertz1" {
			hertzString = append(hertzString, string(value))
		}
	})
	// hertzString == []string{"value1", "value2"}
	})

Method

Get the type of the request method.

Function Signature:

func (ctx *RequestContext) Method() []byte

Example Code:

// POST http://example.com/user
h.Any("/user", func(c context.Context, ctx *app.RequestContext) {
    method := ctx.Method() // method == []byte("POST")
})

ContentType

Obtain the value of the request header Content Type.

Function Signature:

func (ctx *RequestContext) ContentType() []byte

Example Code:

// POST http://example.com/user
// Content-Type: application/json
h.Post("/user", func(c context.Context, ctx *app.RequestContext) {
    contentType := ctx.ContentType() // contentType == []byte("application/json")
})

IfModifiedSince

Determine if the time has exceeded the value of the request header If Modified Since.

Note: If the request header does not contain If Modified Since, it also returns true.

Function Signature:

func (ctx *RequestContext) IfModifiedSince(lastModified time.Time) bool

Example Code:

// POST http://example.com/user
// If-Modified-Since: Wed, 21 Oct 2023 07:28:00 GMT
h.Post("/user", func(c context.Context, ctx *app.RequestContext) {
    t2022, _ := time.Parse(time.RFC1123, "Wed, 21 Oct 2022 07:28:00 GMT")
    ifModifiedSince := ctx.IfModifiedSince(t2022) // ifModifiedSince == false

    t2024, _ := time.Parse(time.RFC1123, "Wed, 21 Oct 2024 07:28:00 GMT")
    ifModifiedSince = ctx.IfModifiedSince(t2024) // ifModifiedSince == true
})

Obtain the value of the key in the request header Cookie.

Function Signature:

func (ctx *RequestContext) Cookie(key string) []byte

Example Code:

// POST http://example.com/user
// Cookie: foo_cookie=choco; bar_cookie=strawberry
h.Post("/user", func(c context.Context, ctx *app.RequestContext) {
    fCookie := ctx.Cookie("foo_cookie")     // fCookie == []byte("choco")
    bCookie := ctx.Cookie("bar_cookie")     // bCookie == []byte("strawberry")
    noneCookie := ctx.Cookie("none_cookie") // noneCookie == nil
})

UserAgent

Obtain the value of the request header User Agent.

Function Signature:

func (ctx *RequestContext) UserAgent() []byte

Example Code:

// POST http://example.com/user
// User-Agent: Chrome/51.0.2704.103 Safari/537.36
h.Post("/user", func(c context.Context, ctx *app.RequestContext) {
    ua := ctx.UserAgent() // ua == []byte("Chrome/51.0.2704.103 Safari/537.36")
})

GetHeader

Obtain the value of the key in the request header.

Function Signature:

func (ctx *RequestContext) GetHeader(key string) []byte

Example Code:

// POST http://example.com/user
// Say-Hello: hello
h.Post("/user", func(c context.Context, ctx *app.RequestContext) {
    customHeader := ctx.GetHeader("Say-Hello") // customHeader == []byte("hello")
})

RequestHeader Object

Use RequestContext.Request.Header to obtain the RequestHeader object, which provides the following methods to obtain/set the request header.

Function Signature	Description
`func (h *RequestHeader) Method() []byte`	Get Method
`func (h *RequestHeader) SetMethod(method string)`	Set Method
`func (h *RequestHeader) SetMethodBytes(method []byte)`	Set Method of type `[]byte`
`func (h *RequestHeader) IsGet() bool`	Determine if Method is GET
`func (h *RequestHeader) IsHead() bool`	Determine if Method is HEAD
`func (h *RequestHeader) IsPost() bool`	Determine if Method is POST
`func (h *RequestHeader) IsPut() bool`	Determine if Method is PUT
`func (h *RequestHeader) IsDelete() bool`	Determine if Method is DELETE
`func (h *RequestHeader) IsConnect() bool`	Determine if Method is CONNECT
`func (h *RequestHeader) IsOptions() bool`	Determine if Method is OPTIONS
`func (h *RequestHeader) IsTrace() bool`	Determine if Method is TRACE
`func (h *RequestHeader) IgnoreBody() bool`	Determine whether to ignore Body (Method GET/HEAD ignores Body)
`func (h *RequestHeader) RequestURI() []byte`	Get RequestURI
`func (h *RequestHeader) SetRequestURI(requestURI string)`	Set RequestURI
`func (h *RequestHeader) SetRequestURIBytes(requestURI []byte)`	Set RequestURI of type `[]byte`
`func (h *RequestHeader) SetProtocol(p string)`	Set protocol type, such as HTTP/1.0
`func (h *RequestHeader) GetProtocol() string`	Get protocol type, such as HTTP/1.1
`func (h *RequestHeader) IsHTTP11() bool`	Determine if it is HTTP/1.1
`func (h *RequestHeader) SetNoHTTP11(b bool)`	Setting is not HTTP/1.1
`func (h *RequestHeader) Host() []byte`	Get Host
`func (h *RequestHeader) SetHost(host string)`	Set Host
`func (h *RequestHeader) SetHostBytes(host []byte)`	Set Host of type `[]byte`
`func (h *RequestHeader) ContentLength() int`	Get Content-Length
`func (h *RequestHeader) ContentLengthBytes() []byte`	Get Content-Length of type `[]byte`
`func (h *RequestHeader) SetContentLength(contentLength int)`	Set Content-Length
`func (h *RequestHeader) SetContentLengthBytes(contentLength []byte)`	Set Content-Length of type `[]byte`
`func (h *RequestHeader) InitContentLengthWithValue(contentLength int)`	Initialize Content-Length
`func (h *RequestHeader) ContentType() []byte`	Get Content-Type
`func (h *RequestHeader) SetContentTypeBytes(contentType []byte)`	Set Content-Type
`func (h *RequestHeader) SetNoDefaultContentType(b bool)`	Control the default sending behavior when Content Type is not specified, false sends the default Content Type value, true does not send Content Type
`func (h *RequestHeader) UserAgent() []byte`	Get User-Agent
`func (h *RequestHeader) SetUserAgentBytes(userAgent []byte)`	Set User-Agent
`func (h *RequestHeader) ConnectionClose() bool`	Determine if it contains Connection: close
`func (h *RequestHeader) SetConnectionClose(close bool)`	Set connectionClose
`func (h *RequestHeader) ResetConnectionClose()`	Reset connectionClose to false and delete Connection Header
`func (h *RequestHeader) SetByteRange(startPos, endPos int)`	Set Range (Range: bytes=startPos-endPos)
`func (h *RequestHeader) SetMultipartFormBoundary(boundary string)`	Set the boundary for Content Type=multipart/form data
`func (h *RequestHeader) MultipartFormBoundary() []byte`	Get the value of boundary
`func (h RequestHeader) Trailer() Trailer`	Get Trailer
`func (h *RequestHeader) Cookie(key string) []byte`	Obtain the value of Cookie key as key
`func (h *RequestHeader) SetCookie(key, value string)`	Set Cookie Key Values
`func (h *RequestHeader) DelCookie(key string)`	Delete the cookie whose key is key
`func (h *RequestHeader) DelAllCookies()`	Delete all Cookies
`func (h *RequestHeader) FullCookie() []byte`	Get all Cookies
`func (h RequestHeader) Cookies() []Cookie`	Get all Cookie objects
`func (h *RequestHeader) VisitAllCookie(f func(key, value []byte))`	Traverse the key values of all cookies and execute the f function
`func (h *RequestHeader) Peek(key string) []byte`	Obtain the value of key for type `[]byte`
`func (h *RequestHeader) Get(key string) string`	Obtain the value of key as key
`func (h *RequestHeader) PeekArgBytes(key []byte) []byte`	Obtain the value of key as key
`func (h *RequestHeader) PeekAll(key string) [][]byte`	Obtain all values of key for type `[]byte` (used to obtain multiple values with the same key)
`func (h *RequestHeader) GetAll(key string) []string`	Obtain all values with key as key
`func (h *RequestHeader) PeekIfModifiedSinceBytes() []byte`	Get If-Modified-Since
`func (h *RequestHeader) PeekContentEncoding() []byte`	Get Content-Encoding
`func (h *RequestHeader) PeekRange() []byte`	Get Range
`func (h *RequestHeader) HasAcceptEncodingBytes(acceptEncoding []byte) bool`	Determine whether Accept-Encoding exists and whether Accept-Encoding includes acceptEncoding
`func (h *RequestHeader) RawHeaders() []byte`	Get original Header
`func (h *RequestHeader) SetRawHeaders(r []byte)`	Set original Header
`func (h *RequestHeader) Add(key, value string)`	Add or set the header with the key as key. (The key will overwrite the following headers: Content Type, Content Length, Connection, Cookie, Transfer Encoding, Host, User Agent)
`func (h *RequestHeader) InitBufValue(size int)`	Initialize buffer size
`func (h *RequestHeader) GetBufValue() []byte`	Get the value of the buffer
`func (h *RequestHeader) SetCanonical(key, value []byte)`	Set the Header key value, assuming that the key is in canonical form
`func (h *RequestHeader) Set(key, value string)`	Set Header Key Values
`func (h *RequestHeader) SetBytesKV(key, value []byte)`	Set Header Key Values
`func (h *RequestHeader) DelBytes(key []byte)`	Delete key value pairs with key in the header
`func (h *RequestHeader) AddArgBytes(key, value []byte, noValue bool)`	Add Header key value (key is not Content Type, Content Length, Connection, Cookie, Transfer Encoding, Host, User Agent)
`func (h *RequestHeader) SetArgBytes(key, value []byte, noValue bool)`	Set Header key value (key is not Content Type, Content Length, Connection, Cookie, Transfer Encoding, Host, User Agent)
`func (h *RequestHeader) AppendBytes(dst []byte) []byte`	Attach the complete header to the dst and return
`func (h *RequestHeader) Header() []byte`	Obtain the complete header of type `[]byte`
`func (h *RequestHeader) String() string`	Obtain the complete header
`func (h RequestHeader) CopyTo(dst RequestHeader)`	Obtain a copy of RequestHeader
`func (h *RequestHeader) VisitAll(f func(key, value []byte))`	Traverse the key values of all headers and execute the f function
`func (h *RequestHeader) VisitAllCustomHeader(f func(key, value []byte))`	Traverse the key values of all headers and execute the f function, except for Content Type, Content Length, Cookie, Host, User Agent
`func (h *RequestHeader) Len() int`	Return the number of key value pairs in the header
`func (h *RequestHeader) DisableNormalizing()`	Disable the normalization of header name (capitalize the first letter and the first letter after the Em dash)
`func (h *RequestHeader) IsDisableNormalizing() bool`	Whether to disable standardized for header name
`func (h *RequestHeader) ResetSkipNormalize()`	Reset Headers except for disableNormalizing status
`func (h *RequestHeader) Reset()`	Reset Headers

Body

func (ctx *RequestContext) GetRawData() []byte
func (ctx *RequestContext) Body() ([]byte, error) 
func (ctx *RequestContext) RequestBodyStream() io.Reader
func (ctx *RequestContext) MultipartForm() (*multipart.Form, error)
func (ctx *RequestContext) FormFile(name string) (*multipart.FileHeader, error) 
func (ctx *RequestContext) SaveUploadedFile(file *multipart.FileHeader, dst string) error 
func (ctx *RequestContext) PostForm(key string) string
func (ctx *RequestContext) DefaultPostForm(key, defaultValue string) string 
func (ctx *RequestContext) GetPostForm(key string) (string, bool) 
func (ctx *RequestContext) PostArgs() *protocol.Args
func (ctx *RequestContext) FormValue(key string) []byte 
func (ctx *RequestContext) SetFormValueFunc(f FormValueFunc)

Body

Obtain the requested body data and return an error if an error occurs.

Function Signature:

func (ctx *RequestContext) Body() ([]byte, error)

Example Code:

// POST http://example.com/pet
// Content-Type: application/json
// {"pet":"cat"}
h.Post("/pet", func(c context.Context, ctx *app.RequestContext) {
    data, err := ctx.Body() // data == []byte("{\"pet\":\"cat\"}") , err == nil
})

RequestBodyStream

Obtain the requested BodyStream.

Function Signature:

func (ctx *RequestContext) RequestBodyStream() io.Reader

Example Code:

// POST http://example.com/user
// Content-Type: text/plain
// abcdefg
h := server.Default(server.WithStreamBody(true))
h.Post("/user", func(c context.Context, ctx *app.RequestContext) {
    sr := ctx.RequestBodyStream()
    data, _ := io.ReadAll(sr) // data == []byte("abcdefg")
})

MultipartForm

Obtain the multipart.Form object. (For more information, please refer to multipart#Form)

Function Signature:

func (ctx *RequestContext) MultipartForm() (*multipart.Form, error)

Example Code:

// POST http://example.com/user
// Content-Type: multipart/form-data; 
// Content-Disposition: form-data; name="avatar"; filename="abc.jpg"
// Content-Disposition: form-data; name="name"
// tom
h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    form, err := ctx.MultipartForm()
    avatarFile := form.File["avatar"][0] // avatarFile.Filename == "abc.jpg"
    name := form.Value["name"][0] // name == "tom"
})

FormFile

Retrieve multipart.Form.File by name and return the first multipart.FileHeader of the given name. (For more information, please refer to multipart#FileHeader)

Function Signature:

func (ctx *RequestContext) FormFile(name string) (*multipart.FileHeader, error)

Example Code:

// POST http://example.com/user
// Content-Type: multipart/form-data; 
// Content-Disposition: form-data; name="avatar"; filename="abc.jpg"
h.Post("/user", func(c context.Context, ctx *app.RequestContext) {
    avatarFile, err := ctx.FormFile("avatar") // avatarFile.Filename == "abc.jpg", err == nil
})

SaveUploadedFile

Save the multipart file to disk.

Function Signature:

func (ctx *RequestContext) SaveUploadedFile(file *multipart.FileHeader, dst string) error

Example Code:

// POST http://example.com/user
// Content-Type: multipart/form-data; 
// Content-Disposition: form-data; name="avatar"; filename="abc.jpg"
h.Post("/user", func(c context.Context, ctx *app.RequestContext) {
    avatarFile, err := ctx.FormFile("avatar") // avatarFile.Filename == "abc.jpg", err == nil
    // save file
    ctx.SaveUploadedFile(avatarFile, avatarFile.Filename) // save file "abc.jpg"
})

PostForm

Retrieve multipart.Form.Value by name and return the first value of the given name.

Note: This function supports obtaining values from content-type of application/x-www form urlencoded and multipart/form data.

Function Signature:

func (ctx *RequestContext) PostForm(key string) string

Example Code:

// POST http://example.com/user
// Content-Type: multipart/form-data; 
// Content-Disposition: form-data; name="name"
// tom
h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    name := ctx.PostForm("name") // name == "tom"
})

DefaultPostForm

Retrieve multipart.Form.Value by name and return the first value of the given name. If it does not exist, return defaultValue.

Note: This function supports obtaining values from content-type of application/x-www form urlencoded and multipart/form data.

Function Signature:

func (ctx *RequestContext) DefaultPostForm(key, defaultValue string) string

Example Code:

// POST http://example.com/user
// Content-Type: multipart/form-data; 
// Content-Disposition: form-data; name="name"
// tom
h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    name := ctx.PostForm("name", "jack") // name == "tom"
    age := ctx.PostForm("age", "10") // age == "10"
})

PostArgs

Obtain the application/x-www form urlencoded parameter object. (For more information, please refer to Args)

Function Signature:

func (ctx *RequestContext) PostArgs() *protocol.Args

Example Code:

// POST http://example.com/user
// Content-Type: application/x-www-form-urlencoded
// name=tom&pet=cat&pet=dog
h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    args := ctx.PostArgs()
    name := args.Peek("name") // name == "tom"

    var pets []string
    args.VisitAll(func(key, value []byte) {
        if string(key) == "pet" {
        pets = append(pets, string(value))
        }
    })
    // pets == []string{"cat", "dog"}
})

FormValue

Obtain the values of keys in the following order.

Obtain values from QueryArgs.
Obtain values from PostArgs.
Obtain values from MultipartForm.

Function Signature:

func (ctx *RequestContext) FormValue(key string) []byte

Example Code:

// POST http://example.com/user?name=tom
// Content-Type: application/x-www-form-urlencoded
// age=10
h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    name := ctx.FormValue("name") // name == []byte("tom"), get by QueryArgs
    age := ctx.FormValue("age") // age == []byte("10"), get by PostArgs
})

// POST http://example.com/user
// Content-Type: multipart/form-data; 
// Content-Disposition: form-data; name="name"
// tom
h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    name := ctx.FormValue("name") // name == []byte("tom"), get by MultipartForm
})

SetFormValueFunc

Set the FormValue function.

Function Signature:

func (ctx *RequestContext) SetFormValueFunc(f FormValueFunc)

Example Code:

// POST http://example.com/user?name=tom
// Content-Type: multipart/form-data; 
// Content-Disposition: form-data; name="age"
// 10
h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    // only return multipart form value
    ctx.SetFormValueFunc(func(rc *app.RequestContext, s string) []byte {
        mf, err := rc.MultipartForm()
        if err == nil && mf.Value != nil {
            vv := mf.Value[s]
            if len(vv) > 0 {
                return []byte(vv[0])
            }
        }
        return nil
    })

    name := ctx.FormValue("name") // name == nil
    age := ctx.FormValue("age")   // age == []byte("10")
})

RequestContext Metadata Store

Note: RequestContext will be reclaimed after the request ends, and the metadata will be set to nil. To use asynchronously, please use the Copy method.

Function Signature	Description
`func (ctx *RequestContext) Set(key string, value interface{})`	Store key value pairs in requestContext
`func (ctx *RequestContext) Value(key interface{}) interface{}`	Gets the value of the requestContext key as key
`func (ctx *RequestContext) Get(key string) (value interface{}, exists bool)`	Obtain the value of the requestContext key as key and whether the key exists
`func (ctx *RequestContext) MustGet(key string) interface{}`	Obtain the value of the requestContext key as key. If it does not exist, a panic will occur
`func (ctx *RequestContext) GetString(key string) (s string)`	Obtain the value of the requestContext key as key and convert it to type `string`
`func (ctx *RequestContext) GetBool(key string) (b bool)`	Obtain the value of the requestContext key as key and convert it to type `bool`
`func (ctx *RequestContext) GetInt(key string) (i int)`	Obtain the value of the requestContext key as key and convert it to type `int`
`func (ctx *RequestContext) GetInt32(key string) (i32 int32)`	Obtain the value of the requestContext key as key and convert it to type `int32`
`func (ctx *RequestContext) GetInt64(key string) (i64 int64)`	Obtain the value of the requestContext key as key and convert it to type `int64`
`func (ctx *RequestContext) GetUint(key string) (ui uint)`	Obtain the value of the requestContext key as key and convert it to type `uint`
`func (ctx *RequestContext) GetUint32(key string) (ui32 uint32)`	Obtain the value of the requestContext key as key and convert it to type `uint32`
`func (ctx *RequestContext) GetUint64(key string) (ui64 uint64)`	Obtain the value of the requestContext key as key and convert it to type `uint64`
`func (ctx *RequestContext) GetFloat32(key string) (f32 float32)`	Obtain the value of the requestContext key as key and convert it to type `float32`
`func (ctx *RequestContext) GetFloat64(key string) (f64 float64)`	Obtain the value of the requestContext key as key and convert it to type `float64`
`func (ctx *RequestContext) GetTime(key string) (t time.Time)`	Obtain the value of the requestContext key as key and convert it to type `time.Time`
`func (ctx *RequestContext) GetDuration(key string) (d time.Duration)`	Obtain the value of the requestContext key as key and convert it to type `time.Duration`
`func (ctx *RequestContext) GetStringSlice(key string) (ss []string)`	Obtain the value of the requestContext key as key and convert it to type `[]string`
`func (ctx *RequestContext) GetStringMap(key string) (sm map[string]interface{})`	Obtain the value of the requestContext key as key and convert it to type `map[string]interface{}`
`func (ctx *RequestContext) GetStringMapString(key string) (sms map[string]string)`	Obtain the value of the requestContext key as key and convert it to type `map[string]string`
`func (ctx *RequestContext) GetStringMapStringSlice(key string) (smss map[string][]string)`	Obtain the value of the requestContext key as key and convert it to type `map[string][]string`
`func (ctx *RequestContext) ForEachKey(fn func(k string, v interface{}))`	Call fn for each key value pair in the context

Set

Store key value pairs in requestContext.

Function Signature:

func (ctx *RequestContext) Set(key string, value interface{})

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("version", "v1")
    v := ctx.Value("version")  // v == interface {}(string) "v1"
})

Value

Gets the value of the requestContext key as key.

Note: The key type needs to be string, otherwise it will return nil.

Function Signature:

func (ctx *RequestContext) Value(key interface{}) interface{}

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("version", "v1")
    v := ctx.Value("version")  // v == interface {}(string) "v1"
})

Get

Obtain the value of the requestContext key as key and whether the key exists.

Function Signature:

func (ctx *RequestContext) Get(key string) (value interface{}, exists bool)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("version", "v1")
    v, exists := ctx.Get("version")  // v == interface {}(string) "v1", exists == true
    v, exists = ctx.Get("pet")  // v == interface {} nil, exists == false
})

MustGet

Obtain the value of the requestContext key as key. If it does not exist, a panic will occur.

Function Signature:

func (ctx *RequestContext) MustGet(key string) interface{}

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("version", "v1")
    v := ctx.MustGet("version")  // v == interface {}(string) "v1"
})

GetString

Obtain the value of the requestContext key as key and convert it to type string.

Function Signature:

func (ctx *RequestContext) GetString(key string) (s string)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("version", "v1")
    v := ctx.GetString("version")  // v == "v1"
})

GetBool

Obtain the value of the requestContext key as key and convert it to type bool.

Function Signature:

func (ctx *RequestContext) GetBool(key string) (b bool)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("isAdmin", true)
    v := ctx.GetBool("isAdmin")  // v == true
})

GetInt

Obtain the value of the requestContext key as key and convert it to type int.

Function Signature:

func (ctx *RequestContext) GetInt(key string) (i int)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("age", 20)
    v := ctx.GetInt("age")  // v == 20
})

GetInt32

Obtain the value of the requestContext key as key and convert it to type int32.

Function Signature:

func (ctx *RequestContext) GetInt32(key string) (i32 int32)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("age", int32(20))
    v := ctx.GetInt32("age")  // v == 20
})

GetInt64

Obtain the value of the requestContext key as key and convert it to type int64.

Function Signature:

func (ctx *RequestContext) GetInt64(key string) (i64 int64)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("age", int64(20))
    v := ctx.GetInt64("age")  // v == 20
})

GetUint

Obtain the value of the requestContext key as key and convert it to type uint.

Function Signature:

func (ctx *RequestContext) GetUint(key string) (ui uint)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("age", uint(20))
    v := ctx.GetInt64("age")  // v == 20
})

GetUint32

Obtain the value of the requestContext key as key and convert it to type uint32.

Function Signature:

func (ctx *RequestContext) GetUint32(key string) (ui32 uint32)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("age", uint32(20))
    v := ctx.GetUint32("age")  // v == 20
})

GetUint64

Obtain the value of the requestContext key as key and convert it to type uint64.

Function Signature:

func (ctx *RequestContext) GetUint64(key string) (ui64 uint64)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("age", uint64(20))
    v := ctx.GetUint64("age")  // v == 20
})

GetFloat32

Obtain the value of the requestContext key as key and convert it to type float32.

Function Signature:

func (ctx *RequestContext) GetFloat32(key string) (f32 float32)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("age", float32(20.1))
    v := ctx.GetFloat64("age")  // v == 20.1
})

GetFloat64

Obtain the value of the requestContext key as key and convert it to type float64.

Function Signature:

func (ctx *RequestContext) GetFloat64(key string) (f64 float64)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("age", 20.1)
    v := ctx.GetFloat64("age")  // v == 20.1
})

GetTime

Obtain the value of the requestContext key as key and convert it to type time.Time.

Function Signature:

func (ctx *RequestContext) GetTime(key string) (t time.Time)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    t2022, _ := time.Parse(time.RFC1123, "Wed, 21 Oct 2022 07:28:00 GMT")
    ctx.Set("birthday", t2022)
    v := ctx.GetTime("birthday")  // v == t2022
})

GetDuration

Obtain the value of the requestContext key as key and convert it to type time.Duration.

Function Signature:

func (ctx *RequestContext) GetDuration(key string) (d time.Duration)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("duration", time.Minute)
    v := ctx.GetDuration("duration")  // v == time.Minute
})

GetStringSlice

Obtain the value of the requestContext key as key and convert it to type []string.

Function Signature:

func (ctx *RequestContext) GetStringSlice(key string) (ss []string)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("pet", []string{"cat", "dog"})
    v := ctx.GetStringSlice("pet")  // v == []string{"cat", "dog"}
})

GetStringMap

Obtain the value of the requestContext key as key and convert it to type map[string]interface{}.

Function Signature:

func (ctx *RequestContext) GetStringMap(key string) (sm map[string]interface{})

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("info", map[string]interface{}{"name": "tom"})
    v := ctx.GetStringMap("info") // v == map[string]interface{}{"name": "tom"}
})

GetStringMapString

Obtain the value of the requestContext key as key and convert it to type map[string]string.

Function Signature:

func (ctx *RequestContext) GetStringMapString(key string) (sms map[string]string)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("info", map[string]string{}{"name": "tom"})
    v := ctx.GetStringMap("info") // v == map[string]string{}{"name": "tom"}
})

GetStringMapStringSlice

Obtain the value of the requestContext key as key and convert it to type map[string][]string.

Function Signature:

func (ctx *RequestContext) GetStringMapStringSlice(key string) (smss map[string][]string)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("smss", map[string][]string{"pets": {"cat", "dog"}})
    v := ctx.GetStringMapStringSlice("smss") // v == map[string][]string{"pets": {"cat", "dog"}}
})

ForEachKey

Call fn for each key value pair in the context.

Function Signature:

func (ctx *RequestContext) ForEachKey(fn func(k string, v interface{}))

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("duration", time.Minute)
    ctx.Set("version", "v1")
    ctx.ForEachKey(func(k string, v interface{}) {
        // 1. k == "duration", v == interface{}(time.Duration) time.Minute
        // 2. k == "version", v == interface {}(string) "v1"
    })
})

Handler

func (ctx *RequestContext) Next(c context.Context) 
func (ctx *RequestContext) Handlers() HandlersChain 
func (ctx *RequestContext) Handler() HandlerFunc 
func (ctx *RequestContext) SetHandlers(hc HandlersChain) 
func (ctx *RequestContext) HandlerName() string 
func (ctx *RequestContext) GetIndex() int8 
func (ctx *RequestContext) Abort() 
func (ctx *RequestContext) IsAborted() bool

Execute the next handler, which is typically used in middleware handlers.

Function Signature:

func (ctx *RequestContext) Next(c context.Context)

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Next(c)
    v := ctx.GetString("version") // v == "v1"
}, func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("version", "v1")
})

Handlers

Get handlers chain.

Function Signature:

func (ctx *RequestContext) Handlers() HandlersChain

Example Code:

middleware1 := func(c context.Context, ctx *app.RequestContext) {
}

handler1 := func(c context.Context, ctx *app.RequestContext) {
    handlers := ctx.Handlers() // []Handler{middleware1, handler1}
}

h.POST("/user", middleware1, handler1)

Handler

Obtain the last handler of the handlers chain. Generally speaking, the last handler is the main handler.

Function Signature:

func (ctx *RequestContext) Handler() HandlerFunc

Example Code:

middleware1 := func(c context.Context, ctx *app.RequestContext) {
    lastHandler := ctx.Handler() // lastHandler == handler1
}

handler1 := func(c context.Context, ctx *app.RequestContext) {
}

h.POST("/user", middleware1, handler1)

SetHandlers

Set handlers chain.

Function Signature:

func (ctx *RequestContext) SetHandlers(hc HandlersChain)

Example Code:

handler1 := func(c context.Context, ctx *app.RequestContext) {
    ctx.Set("current", "handler1")
}

handler := func(c context.Context, ctx *app.RequestContext) {
    hc := app.HandlersChain{ctx.Handlers()[0], handler1} // append handler1 into handlers chain
    ctx.SetHandlers(hc)
    ctx.Next(c)
    current := ctx.GetString("current") // current == "handler1"
    ctx.String(consts.StatusOK, current)
}

h.POST("/user", handler)

HandlerName

Get the function name of the last handler.

Function Signature:

func (ctx *RequestContext) HandlerName() string

Example Code:

package main

func main() {
    h := server.New()
    h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
        hn := ctx.HandlerName() // hn == "main.main.func1"
    })
}

GetIndex

Obtain the index of the currently executing handler in the handlers chain.

Function Signature:

func (ctx *RequestContext) GetIndex() int8

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    index := ctx.GetIndex() // index == 0
}, func(c context.Context, ctx *app.RequestContext) {
    index := ctx.GetIndex() // index == 1
})

Abort

Terminate subsequent handler execution.

Function Signature:

func (ctx *RequestContext) Abort()

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Abort()
}, func(c context.Context, ctx *app.RequestContext) {
    // will not execute
})

IsAborted

Obtain whether the subsequent handler execution status has been terminated.

Function Signature:

func (ctx *RequestContext) IsAborted() bool

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx.Abort()
    isAborted := ctx.IsAborted() // isAborted == true
}, func(c context.Context, ctx *app.RequestContext) {
    // will not execute
})

Binding and validate

(For more information, please refer to binding-and-validate)

func (ctx *RequestContext) Bind(obj interface{}) error 
func (ctx *RequestContext) Validate(obj interface{}) error 
func (ctx *RequestContext) BindAndValidate(obj interface{}) error

Get ClientIP

func (ctx *RequestContext) ClientIP() string 
func (ctx *RequestContext) SetClientIPFunc(f ClientIP)

ClientIP

Obtain the address of the client IP.

Function Signature:

func (ctx *RequestContext) ClientIP() string

Example Code:

h.Use(func(c context.Context, ctx *app.RequestContext) {
    ip := ctx.ClientIP() // example: 127.0.0.1
})

SetClientIPFunc

Set the address of the client IP.

Function Signature:

func (ctx *RequestContext) SetClientIPFunc(f ClientIP)

Example Code:

// POST http://example.com/user
// X-Forwarded-For: 203.0.113.195
h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ip := ctx.ClientIP() // ip == "127.0.0.1"

    opts := app.ClientIPOptions{
        RemoteIPHeaders: []string{"X-Forwarded-For", "X-Real-IP"},
        TrustedProxies:  map[string]bool{ip: true},
    }
    ctx.SetClientIPFunc(app.ClientIPWithOption(opts))

    ip = ctx.ClientIP() // ip == "203.0.113.195"
    ctx.String(consts.StatusOK, ip)
})

Concurrent Security

func (ctx *RequestContext) Copy() *RequestContext

Copy

Copy a copy of RequestContext to provide secure access to the coroutine.

Function Signature:

func (ctx *RequestContext) Copy() *RequestContext

Example Code:

h.POST("/user", func(c context.Context, ctx *app.RequestContext) {
    ctx1 := ctx.Copy()
    go func(context *app.RequestContext) {
        // safely
    }(ctx1)
})

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Last modified July 11, 2023 : create english requestContext doc (0513a35)