server: implement messages and gRPC support for creating messages

server/api/api.go

@@ -35,6 +35,13 @@ func Start() {
 		r.Route("/{channelID}", func(r chi.Router) {
 			r.Get("/", GetChannel)
 			r.Delete("/", DeleteChannel)
+
+			r.Route("/messages", func(r chi.Router) {
+				r.Get("/", ListMessages)
+				r.Route("/{messageID}", func(r chi.Router) {
+					r.Get("/", GetMessage)
+				})
+			})
 		})
 	})