diff --git a/context.go b/context.go
index da837d42..086e01dc 100644
--- a/context.go
+++ b/context.go
@@ -26,8 +26,8 @@ type (
 	// response objects, path parameters, data and registered handler.
 	Context interface {
 		netContext.Context
-		SetNetContext(netContext.Context)
 		NetContext() netContext.Context
+		SetNetContext(netContext.Context)
 		Request() engine.Request
 		Response() engine.Response
 		Path() string
@@ -36,8 +36,8 @@ type (
 		ParamNames() []string
 		Query(string) string
 		Form(string) string
-		Set(string, interface{})
 		Get(string) interface{}
+		Set(string, interface{})
 		Bind(interface{}) error
 		Render(int, string, interface{}) error
 		HTML(int, string) error
@@ -90,14 +90,14 @@ func NewContext(req engine.Request, res engine.Response, e *Echo) Context {
 	}
 }
 
-func (c *context) SetNetContext(ctx netContext.Context) {
-	c.netContext = ctx
-}
-
 func (c *context) NetContext() netContext.Context {
 	return c.netContext
 }
 
+func (c *context) SetNetContext(ctx netContext.Context) {
+	c.netContext = ctx
+}
+
 func (c *context) Deadline() (deadline time.Time, ok bool) {
 	return c.netContext.Deadline()
 }
@@ -169,11 +169,6 @@ func (c *context) Form(name string) string {
 	return c.request.FormValue(name)
 }
 
-// Get retrieves data from the context.
-func (c *context) Get(key string) interface{} {
-	return c.store[key]
-}
-
 // Set saves data in the context.
 func (c *context) Set(key string, val interface{}) {
 	if c.store == nil {
@@ -182,6 +177,11 @@ func (c *context) Set(key string, val interface{}) {
 	c.store[key] = val
 }
 
+// Get retrieves data from the context.
+func (c *context) Get(key string) interface{} {
+	return c.store[key]
+}
+
 // Bind binds the request body into specified type `i`. The default binder does
 // it based on Content-Type header.
 func (c *context) Bind(i interface{}) error {
diff --git a/engine/engine.go b/engine/engine.go
index 39b2d7ef..5369a231 100644
--- a/engine/engine.go
+++ b/engine/engine.go
@@ -9,16 +9,18 @@ import (
 )
 
 type (
-	// Engine defines an interface for HTTP server.
+	// Engine defines the interface for HTTP server.
 	Engine interface {
 		SetHandler(Handler)
 		SetLogger(*log.Logger)
 		Start()
 	}
 
-	// Request defines an interface for HTTP request.
+	// Request defines the interface for HTTP request.
 	Request interface {
+		// TLS returns true if connection is TLS otherwise false.
 		TLS() bool
+
 		Scheme() string
 		Host() string
 		URI() string
@@ -27,6 +29,7 @@ type (
 		// Proto() string
 		// ProtoMajor() int
 		// ProtoMinor() int
+		UserAgent() string
 		RemoteAddress() string
 		Method() string
 		Body() io.ReadCloser
@@ -35,7 +38,7 @@ type (
 		MultipartForm() (*multipart.Form, error)
 	}
 
-	// Response defines an interface for HTTP response.
+	// Response defines the interface for HTTP response.
 	Response interface {
 		Header() Header
 		WriteHeader(int)
@@ -43,22 +46,22 @@ type (
 		Status() int
 		Size() int64
 		Committed() bool
-		SetWriter(io.Writer)
 		Writer() io.Writer
+		SetWriter(io.Writer)
 	}
 
-	// Header defines an interface for HTTP header.
+	// Header defines the interface for HTTP header.
 	Header interface {
 		Add(string, string)
 		Del(string)
-		Get(string) string
 		Set(string, string)
+		Get(string) string
 	}
 
-	// URL defines an interface for HTTP request url.
+	// URL defines the interface for HTTP request url.
 	URL interface {
-		SetPath(string)
 		Path() string
+		SetPath(string)
 		QueryValue(string) string
 	}
 
diff --git a/engine/fasthttp/header.go b/engine/fasthttp/header.go
index 2f3b2d84..11d0cb33 100644
--- a/engine/fasthttp/header.go
+++ b/engine/fasthttp/header.go
@@ -5,47 +5,57 @@ package fasthttp
 import "github.com/valyala/fasthttp"
 
 type (
+	// RequestHeader holds `fasthttp.RequestHeader`.
 	RequestHeader struct {
 		*fasthttp.RequestHeader
 	}
 
+	// ResponseHeader holds `fasthttp.ResponseHeader`.
 	ResponseHeader struct {
 		*fasthttp.ResponseHeader
 	}
 )
 
+// Add implements `Header#Add` method.
 func (h *RequestHeader) Add(key, val string) {
 	// h.RequestHeader.Add(key, val)
 }
 
+// Del implements `Header#Del` method.
 func (h *RequestHeader) Del(key string) {
 	h.RequestHeader.Del(key)
 }
 
-func (h *RequestHeader) Get(key string) string {
-	return string(h.Peek(key))
-}
-
+// Set implements `Header#Set` method.
 func (h *RequestHeader) Set(key, val string) {
 	h.RequestHeader.Set(key, val)
 }
 
+// Get implements `Header#Get` method.
+func (h *RequestHeader) Get(key string) string {
+	return string(h.Peek(key))
+}
+
 func (h *RequestHeader) reset(hdr *fasthttp.RequestHeader) {
 	h.RequestHeader = hdr
 }
 
+// Add implements `Header#Add` method.
 func (h *ResponseHeader) Add(key, val string) {
 	// h.header.Add(key, val)
 }
 
+// Del implements `Header#Del` method.
 func (h *ResponseHeader) Del(key string) {
 	h.ResponseHeader.Del(key)
 }
 
+// Get implements `Header#Get` method.
 func (h *ResponseHeader) Get(key string) string {
 	return string(h.Peek(key))
 }
 
+// Set implements `Header#Set` method.
 func (h *ResponseHeader) Set(key, val string) {
 	h.ResponseHeader.Set(key, val)
 }
diff --git a/engine/fasthttp/request.go b/engine/fasthttp/request.go
index 32a2b09e..78ee71cd 100644
--- a/engine/fasthttp/request.go
+++ b/engine/fasthttp/request.go
@@ -15,6 +15,7 @@ import (
 )
 
 type (
+	// Request implements `engine.Request`.
 	Request struct {
 		*fasthttp.RequestCtx
 		url    engine.URL
@@ -22,58 +23,67 @@ type (
 	}
 )
 
-func NewRequest(c *fasthttp.RequestCtx) *Request {
-	return &Request{
-		RequestCtx: c,
-		url:        &URL{URI: c.URI()},
-		header:     &RequestHeader{&c.Request.Header},
-	}
-}
-
+// TLS implements `Request#TLS` method.
 func (r *Request) TLS() bool {
 	return r.IsTLS()
 }
 
+// Scheme implements `Request#Scheme` method.
 func (r *Request) Scheme() string {
 	return string(r.RequestCtx.URI().Scheme())
 }
 
+// Host implements `Request#Host` method.
 func (r *Request) Host() string {
 	return string(r.RequestCtx.Host())
 }
 
-func (r *Request) URI() string {
-	return string(r.RequestURI())
-}
-
+// URL implements `Request#URL` method.
 func (r *Request) URL() engine.URL {
 	return r.url
 }
 
+// Header implements `Request#Header` method.
 func (r *Request) Header() engine.Header {
 	return r.header
 }
 
+// UserAgent implements `Request#UserAgent` method.
+func (r *Request) UserAgent() string {
+	return string(r.RequestCtx.UserAgent())
+}
+
+// RemoteAddress implements `Request#RemoteAddress` method.
 func (r *Request) RemoteAddress() string {
 	return r.RemoteAddr().String()
 }
 
+// Method implements `Request#Method` method.
 func (r *Request) Method() string {
 	return string(r.RequestCtx.Method())
 }
 
+// URI implements `Request#URI` method.
+func (r *Request) URI() string {
+	return string(r.RequestURI())
+}
+
+// Body implements `Request#Body` method.
 func (r *Request) Body() io.ReadCloser {
 	return ioutil.NopCloser(bytes.NewBuffer(r.PostBody()))
 }
 
+// FormValue implements `Request#FormValue` method.
 func (r *Request) FormValue(name string) string {
 	return string(r.RequestCtx.FormValue(name))
 }
 
+// FormFile implements `Request#FormFile` method.
 func (r *Request) FormFile(name string) (*multipart.FileHeader, error) {
 	return r.RequestCtx.FormFile(name)
 }
 
+// MultipartForm implements `Request#MultipartForm` method.
 func (r *Request) MultipartForm() (*multipart.Form, error) {
 	return r.RequestCtx.MultipartForm()
 }
diff --git a/engine/fasthttp/response.go b/engine/fasthttp/response.go
index 28ebaeb0..5bd612ee 100644
--- a/engine/fasthttp/response.go
+++ b/engine/fasthttp/response.go
@@ -12,6 +12,7 @@ import (
 )
 
 type (
+	// Response implements `engine.Response`.
 	Response struct {
 		*fasthttp.RequestCtx
 		header    engine.Header
@@ -23,19 +24,12 @@ type (
 	}
 )
 
-func NewResponse(c *fasthttp.RequestCtx) *Response {
-	return &Response{
-		RequestCtx: c,
-		header:     &ResponseHeader{&c.Response.Header},
-		writer:     c,
-		logger:     log.New("test"),
-	}
-}
-
+// Header implements `Response#Header` method.
 func (r *Response) Header() engine.Header {
 	return r.header
 }
 
+// WriteHeader implements `Response#WriteHeader` method.
 func (r *Response) WriteHeader(code int) {
 	if r.committed {
 		r.logger.Warn("response already committed")
@@ -46,30 +40,36 @@ func (r *Response) WriteHeader(code int) {
 	r.committed = true
 }
 
+// Write implements `Response#Write` method.
 func (r *Response) Write(b []byte) (int, error) {
 	return r.RequestCtx.Write(b)
 }
 
+// Status implements `Response#Status` method.
 func (r *Response) Status() int {
 	return r.status
 }
 
+// Size implements `Response#Size` method.
 func (r *Response) Size() int64 {
 	return r.size
 }
 
+// Committed implements `Response#Committed` method.
 func (r *Response) Committed() bool {
 	return r.committed
 }
 
-func (r *Response) SetWriter(w io.Writer) {
-	r.writer = w
-}
-
+// Writer implements `Response#Writer` method.
 func (r *Response) Writer() io.Writer {
 	return r.writer
 }
 
+// SetWriter implements `Response#SetWriter` method.
+func (r *Response) SetWriter(w io.Writer) {
+	r.writer = w
+}
+
 func (r *Response) reset(c *fasthttp.RequestCtx, h engine.Header) {
 	r.RequestCtx = c
 	r.header = h
diff --git a/engine/fasthttp/server.go b/engine/fasthttp/server.go
index 453fee4b..0236ea6f 100644
--- a/engine/fasthttp/server.go
+++ b/engine/fasthttp/server.go
@@ -12,14 +12,15 @@ import (
 )
 
 type (
+	// Server implements `engine.Engine`.
 	Server struct {
 		config  engine.Config
 		handler engine.Handler
 		logger  *log.Logger
-		pool    *Pool
+		pool    *pool
 	}
 
-	Pool struct {
+	pool struct {
 		request        sync.Pool
 		response       sync.Pool
 		requestHeader  sync.Pool
@@ -28,11 +29,13 @@ type (
 	}
 )
 
+// New returns an instance of `fasthttp.Server` with specified listen address.
 func New(addr string) *Server {
 	c := engine.Config{Address: addr}
 	return NewFromConfig(c)
 }
 
+// NewFromTLS returns an instance of `fasthttp.Server` from TLS config.
 func NewFromTLS(addr, certfile, keyfile string) *Server {
 	c := engine.Config{
 		Address:     addr,
@@ -42,10 +45,11 @@ func NewFromTLS(addr, certfile, keyfile string) *Server {
 	return NewFromConfig(c)
 }
 
+// NewFromConfig returns an instance of `standard.Server` from config.
 func NewFromConfig(c engine.Config) (s *Server) {
 	s = &Server{
 		config: c,
-		pool: &Pool{
+		pool: &pool{
 			request: sync.Pool{
 				New: func() interface{} {
 					return &Request{}
@@ -80,14 +84,17 @@ func NewFromConfig(c engine.Config) (s *Server) {
 	return
 }
 
+// SetHandler implements `Engine#SetHandler` method.
 func (s *Server) SetHandler(h engine.Handler) {
 	s.handler = h
 }
 
+// SetLogger implements `Engine#SetLogger` method.
 func (s *Server) SetLogger(l *log.Logger) {
 	s.logger = l
 }
 
+// Start implements `Engine#Start` method.
 func (s *Server) Start() {
 	handler := func(c *fasthttp.RequestCtx) {
 		// Request
diff --git a/engine/fasthttp/url.go b/engine/fasthttp/url.go
index ac1d86fc..1add8589 100644
--- a/engine/fasthttp/url.go
+++ b/engine/fasthttp/url.go
@@ -5,19 +5,23 @@ package fasthttp
 import "github.com/valyala/fasthttp"
 
 type (
+	// URL implements `engine.URL`.
 	URL struct {
 		*fasthttp.URI
 	}
 )
 
-func (u *URL) SetPath(path string) {
-	// return string(u.URI.Path())
-}
-
+// Path implements `URL#Path` method.
 func (u *URL) Path() string {
 	return string(u.URI.Path())
 }
 
+// SetPath implements `URL#SetPath` method.
+func (u *URL) SetPath(path string) {
+	// return string(u.URI.Path())
+}
+
+// QueryValue implements `URL#QueryValue` method.
 func (u *URL) QueryValue(name string) string {
 	return ""
 }
diff --git a/engine/standard/header.go b/engine/standard/header.go
index 5989c941..0a33aaf9 100644
--- a/engine/standard/header.go
+++ b/engine/standard/header.go
@@ -3,27 +3,32 @@ package standard
 import "net/http"
 
 type (
+	// Header implements `engine.Header`.
 	Header struct {
 		http.Header
 	}
 )
 
+// Add implements `Header#Add` method.
 func (h *Header) Add(key, val string) {
 	h.Header.Add(key, val)
 }
 
+// Del implements `Header#Del` method.
 func (h *Header) Del(key string) {
 	h.Header.Del(key)
 }
 
-func (h *Header) Get(key string) string {
-	return h.Header.Get(key)
-}
-
+// Set implements `Header#Set` method.
 func (h *Header) Set(key, val string) {
 	h.Header.Set(key, val)
 }
 
+// Get implements `Header#Get` method.
+func (h *Header) Get(key string) string {
+	return h.Header.Get(key)
+}
+
 func (h *Header) reset(hdr http.Header) {
 	h.Header = hdr
 }
diff --git a/engine/standard/request.go b/engine/standard/request.go
index 1faf0782..2f7873c2 100644
--- a/engine/standard/request.go
+++ b/engine/standard/request.go
@@ -9,6 +9,7 @@ import (
 )
 
 type (
+	// Request implements `engine.Request`.
 	Request struct {
 		*http.Request
 		url    engine.URL
@@ -16,18 +17,12 @@ type (
 	}
 )
 
-func NewRequest(r *http.Request) *Request {
-	return &Request{
-		Request: r,
-		url:     &URL{URL: r.URL},
-		header:  &Header{r.Header},
-	}
-}
-
+// TLS implements `Request#TLS` method.
 func (r *Request) TLS() bool {
 	return r.Request.TLS != nil
 }
 
+// Scheme implements `Request#Scheme` method.
 func (r *Request) Scheme() string {
 	if r.TLS() {
 		return "https"
@@ -35,14 +30,17 @@ func (r *Request) Scheme() string {
 	return "http"
 }
 
+// Host implements `Request#Host` method.
 func (r *Request) Host() string {
 	return r.Request.Host
 }
 
+// URL implements `Request#URL` method.
 func (r *Request) URL() engine.URL {
 	return r.url
 }
 
+// Header implements `Request#URL` method.
 func (r *Request) Header() engine.Header {
 	return r.header
 }
@@ -59,31 +57,43 @@ func (r *Request) Header() engine.Header {
 // 	return r.request.ProtoMinor()
 // }
 
+// UserAgent implements `Request#UserAgent` method.
+func (r *Request) UserAgent() string {
+	return r.Request.UserAgent()
+}
+
+// RemoteAddress implements `Request#RemoteAddress` method.
 func (r *Request) RemoteAddress() string {
 	return r.RemoteAddr
 }
 
+// Method implements `Request#Method` method.
 func (r *Request) Method() string {
 	return r.Request.Method
 }
 
+// URI implements `Request#URI` method.
 func (r *Request) URI() string {
 	return r.RequestURI
 }
 
+// Body implements `Request#Body` method.
 func (r *Request) Body() io.ReadCloser {
 	return r.Request.Body
 }
 
+// FormValue implements `Request#FormValue` method.
 func (r *Request) FormValue(name string) string {
 	return r.Request.FormValue(name)
 }
 
+// FormFile implements `Request#FormFile` method.
 func (r *Request) FormFile(name string) (*multipart.FileHeader, error) {
 	_, fh, err := r.Request.FormFile(name)
 	return fh, err
 }
 
+// MultipartForm implements `Request#MultipartForm` method.
 func (r *Request) MultipartForm() (*multipart.Form, error) {
 	r.Request.ParseMultipartForm(32 << 20) // 32 MB
 	return r.Request.MultipartForm, nil
diff --git a/engine/standard/response.go b/engine/standard/response.go
index 5c195a4d..ffbcb746 100644
--- a/engine/standard/response.go
+++ b/engine/standard/response.go
@@ -9,6 +9,7 @@ import (
 )
 
 type (
+	// Response implements `engine.Response`.
 	Response struct {
 		http.ResponseWriter
 		header    engine.Header
@@ -20,19 +21,12 @@ type (
 	}
 )
 
-func NewResponse(w http.ResponseWriter, l *log.Logger) *Response {
-	return &Response{
-		ResponseWriter: w,
-		header:         &Header{w.Header()},
-		writer:         w,
-		logger:         l,
-	}
-}
-
+// Header implements `Response#Header` method.
 func (r *Response) Header() engine.Header {
 	return r.header
 }
 
+// WriteHeader implements `Response#WriteHeader` method.
 func (r *Response) WriteHeader(code int) {
 	if r.committed {
 		r.logger.Warn("response already committed")
@@ -43,32 +37,38 @@ func (r *Response) WriteHeader(code int) {
 	r.committed = true
 }
 
+// Write implements `Response#Write` method.
 func (r *Response) Write(b []byte) (n int, err error) {
 	n, err = r.writer.Write(b)
 	r.size += int64(n)
 	return
 }
 
+// Status implements `Response#Status` method.
 func (r *Response) Status() int {
 	return r.status
 }
 
+// Size implements `Response#Size` method.
 func (r *Response) Size() int64 {
 	return r.size
 }
 
+// Committed implements `Response#Committed` method.
 func (r *Response) Committed() bool {
 	return r.committed
 }
 
-func (r *Response) SetWriter(w io.Writer) {
-	r.writer = w
-}
-
+// Writer implements `Response#Writer` method.
 func (r *Response) Writer() io.Writer {
 	return r.writer
 }
 
+// SetWriter implements `Response#SetWriter` method.
+func (r *Response) SetWriter(w io.Writer) {
+	r.writer = w
+}
+
 func (r *Response) reset(w http.ResponseWriter, h engine.Header) {
 	r.ResponseWriter = w
 	r.header = h
diff --git a/engine/standard/server.go b/engine/standard/server.go
index 051e5a09..3100bf14 100644
--- a/engine/standard/server.go
+++ b/engine/standard/server.go
@@ -10,15 +10,16 @@ import (
 )
 
 type (
+	// Server implements `engine.Engine`.
 	Server struct {
 		*http.Server
 		config  engine.Config
 		handler engine.Handler
 		logger  *log.Logger
-		pool    *Pool
+		pool    *pool
 	}
 
-	Pool struct {
+	pool struct {
 		request  sync.Pool
 		response sync.Pool
 		header   sync.Pool
@@ -26,11 +27,13 @@ type (
 	}
 )
 
+// New returns an instance of `standard.Server` with specified listen address.
 func New(addr string) *Server {
 	c := engine.Config{Address: addr}
 	return NewFromConfig(c)
 }
 
+// NewFromTLS returns an instance of `standard.Server` from TLS config.
 func NewFromTLS(addr, certfile, keyfile string) *Server {
 	c := engine.Config{
 		Address:     addr,
@@ -40,11 +43,12 @@ func NewFromTLS(addr, certfile, keyfile string) *Server {
 	return NewFromConfig(c)
 }
 
+// NewFromConfig returns an instance of `standard.Server` from config.
 func NewFromConfig(c engine.Config) (s *Server) {
 	s = &Server{
 		Server: new(http.Server),
 		config: c,
-		pool: &Pool{
+		pool: &pool{
 			request: sync.Pool{
 				New: func() interface{} {
 					return &Request{}
@@ -76,14 +80,17 @@ func NewFromConfig(c engine.Config) (s *Server) {
 	return
 }
 
+// SetHandler implements `Engine#SetHandler` method.
 func (s *Server) SetHandler(h engine.Handler) {
 	s.handler = h
 }
 
+// SetLogger implements `Engine#SetLogger` method.
 func (s *Server) SetLogger(l *log.Logger) {
 	s.logger = l
 }
 
+// Start implements `Engine#Start` method.
 func (s *Server) Start() {
 	certfile := s.config.TLSCertfile
 	keyfile := s.config.TLSKeyfile
@@ -94,6 +101,7 @@ func (s *Server) Start() {
 	}
 }
 
+// ServeHTTP implements `http.Handler` interface.
 func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	// Request
 	req := s.pool.request.Get().(*Request)
diff --git a/engine/standard/url.go b/engine/standard/url.go
index fbf4c57e..8d6f6b03 100644
--- a/engine/standard/url.go
+++ b/engine/standard/url.go
@@ -3,20 +3,24 @@ package standard
 import "net/url"
 
 type (
+	// URL implements `engine.URL`.
 	URL struct {
 		*url.URL
 		query url.Values
 	}
 )
 
-func (u *URL) SetPath(path string) {
-	u.URL.Path = path
-}
-
+// Path implements `URL#Path` method.
 func (u *URL) Path() string {
 	return u.URL.Path
 }
 
+// SetPath implements `URL#SetPath` method.
+func (u *URL) SetPath(path string) {
+	u.URL.Path = path
+}
+
+// QueryValue implements `URL#QueryValue` method.
 func (u *URL) QueryValue(name string) string {
 	if u.query == nil {
 		u.query = u.Query()
diff --git a/glide.lock b/glide.lock
index 7c84b945..0cd5db71 100644
--- a/glide.lock
+++ b/glide.lock
@@ -1,5 +1,5 @@
 hash: f220137e9ccd9aaf3051be33c3c23ea8abd2c40df6cf96175c3994d482b5e007
-updated: 2016-03-14T08:16:01.763706114-07:00
+updated: 2016-03-14T18:03:44.054071074-07:00
 imports:
 - name: github.com/klauspost/compress
   version: 006acde2c5d283d2f8b8aa03d8f0cd2891c680cf
diff --git a/test/request.go b/test/request.go
index 92834b09..5d349219 100644
--- a/test/request.go
+++ b/test/request.go
@@ -60,6 +60,10 @@ func (r *Request) Header() engine.Header {
 // 	return r.request.ProtoMinor()
 // }
 
+func (r *Request) UserAgent() string {
+	return r.request.UserAgent()
+}
+
 func (r *Request) RemoteAddress() string {
 	return r.request.RemoteAddr
 }