Wrapper for handler in engine

Signed-off-by: Vishal Rana <vr@labstack.com>

engine/fasthttp/server.go

@@ -5,6 +5,7 @@ package fasthttp
 import (
 	"sync"
 
+	"github.com/labstack/echo"
 	"github.com/labstack/echo/engine"
 	"github.com/labstack/gommon/log"
 	"github.com/valyala/fasthttp"
@@ -121,3 +122,12 @@ func (s *Server) Start() {
 		s.logger.Fatal(fasthttp.ListenAndServe(addr, handler))
 	}
 }
+
+// WrapHandler wraps `fasthttp.RequestHandler` into `echo.Handler`.
+func WrapHandler(h fasthttp.RequestHandler) echo.Handler {
+	return echo.HandlerFunc(func(c echo.Context) error {
+		c := c.Request().Object().(*fasthttp.RequestCtx)
+		h(c)
+		return nil
+	})
+}

engine/standard/server.go

@@ -4,6 +4,7 @@ import (
 	"net/http"
 	"sync"
 
+	"github.com/labstack/echo"
 	"github.com/labstack/echo/engine"
 	"github.com/labstack/gommon/log"
 )
@@ -116,3 +117,13 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	s.pool.response.Put(res)
 	s.pool.header.Put(resHdr)
 }
+
+// WrapHandler wraps `http.Handler` into `echo.Handler`.
+func WrapHandler(h http.Handler) echo.Handler {
+	return echo.HandlerFunc(func(c echo.Context) error {
+		w := c.Response().Object().(http.ResponseWriter)
+		r := c.Request().Object().(*http.Request)
+		h.ServeHTTP(w, r)
+		return nil
+	})
+}