diff --git a/js/ln.vue.js b/js/ln.vue.js
index 81d53a4..17e5c0c 100644
--- a/js/ln.vue.js
+++ b/js/ln.vue.js
@@ -192,7 +192,21 @@
             this.closing = false;
 
             this.websocket = new WebSocket(this.options.url);
-            this.websocket.onopen = (e) =>{ console.log("WebSocket connected"); this._state = "ONLINE"; };
+            this.websocket.onopen = (e) =>{
+                console.log("WebSocket connected");
+                this._state = "ONLINE";
+
+                let WSHello = {
+                    ApplicationSessionID: this.LNVue.sessionID(),
+                };
+                console.log("WSHello request",WSHello);
+
+                this.request("WSHello",WSHello)
+                .then((wsh)=>{
+                    console.log("WSHello response",wsh);
+                    this.LNVue.sessionID(wsh.message.ApplicationSessionID);
+                });
+            };
             this.websocket.onclose = (e)=>{ this._onclose(e); this._state = "OFFLINE"; };
             this.websocket.onerror = (e)=>{ this._onerror(e); this._state = "ERROR"; };
             this.websocket.onmessage = (e)=>{ this._onmessage(e); };
@@ -345,7 +359,26 @@
             });
         }
 
+        storage(){
+            return window.localStorage;
+        }
 
+        sessionID(){
+            if (arguments.length == 1){
+                this.storage().setItem("LNVueSessionID",arguments[0]);
+                console.log("LNVue.SID <= " + arguments[0]);
+                return this;
+            } else
+            {
+                let sid = this.storage().getItem("LNVueSessionID");
+                console.log("LNVue.SID == " + sid);
+                if (!sid)
+                {
+                    sid = "00000000-0000-0000-0000-000000000000";
+                }
+                return sid;
+            }
+        }
 
         Version(){ return "0.2alpha"; };
         getCurrentPromises() {