Improve Live Query Monitoring (#5927)

* Improve Live Query Monitoring

* typo

src/LiveQuery/Client.js

@@ -15,6 +15,7 @@ class Client {
   id: number;
   parseWebSocket: any;
   hasMasterKey: boolean;
+  sessionToken: string;
   userId: string;
   roles: Array<string>;
   subscriptionInfos: Object;
@@ -27,10 +28,16 @@ class Client {
   pushDelete: Function;
   pushLeave: Function;
 
-  constructor(id: number, parseWebSocket: any, hasMasterKey: boolean) {
+  constructor(
+    id: number,
+    parseWebSocket: any,
+    hasMasterKey: boolean = false,
+    sessionToken: string
+  ) {
     this.id = id;
     this.parseWebSocket = parseWebSocket;
     this.hasMasterKey = hasMasterKey;
+    this.sessionToken = sessionToken;
     this.roles = [];
     this.subscriptionInfos = new Map();
     this.pushConnect = this._pushEvent('connected');

src/LiveQuery/ParseLiveQueryServer.js

@@ -580,15 +580,24 @@ class ParseLiveQueryServer {
     }
     const hasMasterKey = this._hasMasterKey(request, this.keyPairs);
     const clientId = uuid();
-    const client = new Client(clientId, parseWebsocket, hasMasterKey);
+    const client = new Client(
+      clientId,
+      parseWebsocket,
+      hasMasterKey,
+      request.sessionToken
+    );
     parseWebsocket.clientId = clientId;
     this.clients.set(parseWebsocket.clientId, client);
     logger.info(`Create new client: ${parseWebsocket.clientId}`);
     client.pushConnect();
     runLiveQueryEventHandlers({
+      client,
       event: 'connect',
       clients: this.clients.size,
       subscriptions: this.subscriptions.size,
+      sessionToken: request.sessionToken,
+      useMasterKey: client.hasMasterKey,
+      installationId: request.installationId,
     });
   }
 
@@ -663,13 +672,16 @@ class ParseLiveQueryServer {
     const subscriptionInfo = {
       subscription: subscription,
     };
-    // Add selected fields and sessionToken for this subscription if necessary
+    // Add selected fields, sessionToken and installationId for this subscription if necessary
     if (request.query.fields) {
       subscriptionInfo.fields = request.query.fields;
     }
     if (request.sessionToken) {
       subscriptionInfo.sessionToken = request.sessionToken;
     }
+    if (request.installationId) {
+      subscriptionInfo.installationId = request.installationId;
+    }
     client.addSubscriptionInfo(request.requestId, subscriptionInfo);
 
     // Add clientId to subscription
@@ -685,9 +697,13 @@ class ParseLiveQueryServer {
     );
     logger.verbose('Current client number: %d', this.clients.size);
     runLiveQueryEventHandlers({
+      client,
       event: 'subscribe',
       clients: this.clients.size,
       subscriptions: this.subscriptions.size,
+      sessionToken: request.sessionToken,
+      useMasterKey: client.hasMasterKey,
+      installationId: request.installationId,
     });
   }
 
@@ -763,9 +779,13 @@ class ParseLiveQueryServer {
       this.subscriptions.delete(className);
     }
     runLiveQueryEventHandlers({
+      client,
       event: 'unsubscribe',
       clients: this.clients.size,
       subscriptions: this.subscriptions.size,
+      sessionToken: subscriptionInfo.sessionToken,
+      useMasterKey: client.hasMasterKey,
+      installationId: subscriptionInfo.installationId,
     });
 
     if (!notifyClient) {