Added Reader and String

Context.go

@@ -1,7 +1,9 @@
 package server
 
 import (
+	"io"
 	"net/http"
+	"unsafe"
 )
 
 // maxParams defines the maximum number of parameters per route.
@@ -11,6 +13,8 @@ const maxParams = 16
 type Context interface {
 	Bytes([]byte) error
 	Error(int, error) error
+	Reader(io.Reader) error
+	String(string) error
 }
 
 // context represents a request & response context.
@@ -43,6 +47,18 @@ func (ctx *context) Error(status int, err error) error {
 	return err
 }
 
+// Reader sends the contents of the io.Reader without creating an in-memory copy.
+func (ctx *context) Reader(reader io.Reader) error {
+	_, err := io.Copy(ctx.response, reader)
+	return err
+}
+
+// String responds with the given string.
+func (ctx *context) String(body string) error {
+	slice := unsafe.Slice(unsafe.StringData(body), len(body))
+	return ctx.Bytes(slice)
+}
+
 // addParameter adds a new parameter to the context.
 func (ctx *context) addParameter(name string, value string) {
 	ctx.paramNames[ctx.paramCount] = name