Add service name to version response (#241)

Signed-off-by: Dušan Borovčanin <borovcanindusan1@gmail.com>

http/api/transport.go

@@ -41,7 +41,7 @@ func MakeHandler(svc mainflux.MessagePublisher, mc manager.ManagerClient) http.H
 		opts...,
 	))
 
-	r.GetFunc("/version", mainflux.Version())
+	r.GetFunc("/version", mainflux.Version("http"))
 	r.Handle("/metrics", promhttp.Handler())
 
 	return r

manager/api/transport.go

@@ -143,7 +143,7 @@ func MakeHandler(svc manager.Service) http.Handler {
 		opts...,
 	))
 
-	r.GetFunc("/version", mainflux.Version())
+	r.GetFunc("/version", mainflux.Version("manager"))
 	r.Handle("/metrics", promhttp.Handler())
 
 	return r

normalizer/api.go

@@ -11,7 +11,7 @@ import (
 // MakeHandler returns a HTTP handler for API endpoints.
 func MakeHandler() http.Handler {
 	r := bone.New()
-	r.GetFunc("/version", mainflux.Version())
+	r.GetFunc("/version", mainflux.Version("normalizer"))
 	r.Handle("/metrics", promhttp.Handler())
 
 	return r

version.go

@@ -9,12 +9,13 @@ const version string = "0.2.2"
 
 type response struct {
 	Version string
+	Service string
 }
 
 // Version exposes an HTTP handler for retrieving service version.
-func Version() http.HandlerFunc {
+func Version(service string) http.HandlerFunc {
 	return http.HandlerFunc(func(rw http.ResponseWriter, _ *http.Request) {
-		res := response{Version: version}
+		res := response{Version: version, Service: service}
 
 		data, _ := json.Marshal(res)
 

ws/api/transport.go

@@ -38,7 +38,7 @@ func MakeHandler(svc ws.Service, mc manager.ManagerClient, l log.Logger) http.Ha
 
 	mux := bone.New()
 	mux.GetFunc("/channels/:id/messages", handshake(svc))
-	mux.GetFunc("/version", mainflux.Version())
+	mux.GetFunc("/version", mainflux.Version("websocket"))
 	mux.Handle("/metrics", promhttp.Handler())
 
 	return mux