Sync async_nats work with master

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

gateway/handlers/queueproxy.go

@@ -0,0 +1,43 @@
+package handlers
+
+import (
+	"fmt"
+	"io/ioutil"
+	"net/http"
+
+	"github.com/Sirupsen/logrus"
+	"github.com/alexellis/faas/gateway/metrics"
+	"github.com/alexellis/faas/gateway/queue"
+	"github.com/docker/docker/client"
+	"github.com/gorilla/mux"
+)
+
+// MakeQueuedProxy accepts work onto a queue
+func MakeQueuedProxy(metrics metrics.MetricOptions, wildcard bool, client *client.Client, logger *logrus.Logger, canQueueRequests queue.CanQueueRequests) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		defer r.Body.Close()
+
+		body, err := ioutil.ReadAll(r.Body)
+
+		if err != nil {
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+
+		w.WriteHeader(http.StatusAccepted)
+		vars := mux.Vars(r)
+		name := vars["name"]
+		req := &queue.Request{
+			Function:    name,
+			Body:        body,
+			Method:      r.Method,
+			QueryString: r.URL.RawQuery,
+			Header:      r.Header,
+		}
+
+		err = canQueueRequests.Queue(req)
+		if err != nil {
+			fmt.Println(err)
+		}
+	}
+}