Rename anchor -> key globally ¯\_(ツ)_/¯

src/app/services/fsmupdate.service.ts

@@ -11,7 +11,7 @@ export class FSMUpdateService {
   constructor(private websocketService: WebSocketService) {}
 
   public init(): void {
-    this.websocketService.observeAnchor<FSMUpdate>('FSMUpdate').subscribe((event) => {
+    this.websocketService.observeKey<FSMUpdate>('FSMUpdate').subscribe((event) => {
       this.current_state = event.data.current_state;
       this.valid_transitions = event.data.valid_transitions;
     });

src/app/services/websocket.service.ts

@@ -41,17 +41,17 @@ export class WebSocketService {
     console.log('ws connected');
   }
 
-  public observeAnchor<T>(anchor: string): Observable<WSMessage<T>> {
-    return this.downlink.pipe(filter(message => message.anchor === anchor));
+  public observeKey<T>(key: string): Observable<WSMessage<T>> {
+    return this.downlink.pipe(filter(message => message.key === key));
   }
 
-  public send(anchor: string, data: any): void {
+  public send(key: string, data: any): void {
     // If the WebSocket is not connected then the QueueingSubject will ensure
     // that messages are queued and delivered when the WebSocket reconnects.
     // A regular Subject can be used to discard messages sent when the WebSocket
     // is disconnected.
     this.uplink.next({
-      'anchor': anchor,
+      'key': key,
       'data': data
     });
   }

src/app/services/wsmessage.ts

@@ -1,4 +1,4 @@
 export class WSMessage<T> {
-  anchor: string;
+  key: string;
   data: T;  // TODO: sane annotation
 }