ping handler

cmd/wof-libpostal-server.go

@@ -27,11 +27,19 @@ func main() {
 		logger.Fatal("failed to create expand handler, because %v", err)
 	}
 
+	ping_hander, err := http.PingHandler()
+
+	if err != nil {
+		logger.Fatal("failed to create ping handler, because %v", err)
+	}
+
 	endpoint := fmt.Sprintf("%s:%d", *host, *port)
 
 	mux := http.NewServeMux()
+
 	mux.HandleFunc("/parse", parser_handler)
 	mux.HandleFunc("/expand", expand_handler)
+	mux.HandleFunc("/ping", ping_handler)	
 
 	err := gracehttp.Serve(&http.Server{Addr: endpoint, Handler: mux})
 

http/expand.go

@@ -17,8 +17,7 @@ func ExpandHandler() (gohttp.Handler, error) {
 		}
 
 		expansions := expand.ExpandAddress(address)
-
-		WriteResponse(rsp, expansions, expandSuccess)
+		WriteResponse(rsp, expansions)
 	}
 
 	h := gohttp.HandlerFunc(fn)

http/ping.go

@@ -0,0 +1,16 @@
+package http
+
+import (
+	gohttp "net/http"
+)
+
+func PingHandler() (gohttp.Handler, error) {
+
+	fn := func(rsp gohttp.ResponseWriter, req *gohttp.Request) {
+		rsp.Header().Set("Content-Type", "text/plain")
+		rsp.Write([]byte("PONG"))
+	}
+
+	h := gohttp.HandlerFunc(fn)
+	return h, nil
+}