Now fetching all the users using the app

src/store/firebase.js

 import { firebaseAuth, firebaseDb } from 'boot/firebase'
 
 const state = {
-  userDetails: {}
+  userDetails: {},
+  users: {}
 }
 
 const mutations = {
   setUserDetails(state, payload) {
     state.userDetails = payload
+  },
+
+  addUser(state, payload) {
+    state.users[payload.userId] = payload.userDetails
+  },
+
+  updateUser(state, payload) {
+    Object.assign(state.users[payload.userId], payload.userDetails)
   }
 }
 
@@ -61,6 +70,7 @@ const actions = {
             online: true
           }
         })
+        dispatch('firebaseGetUsers')
         this.$router.push('/')
       }
       else {
@@ -79,10 +89,39 @@ const actions = {
 
   firebaseUpdateUser({}, payload) {
     firebaseDb.ref('users/' + payload.userId).update(payload.updates)
+  },
+
+  firebaseGetUsers({ commit }) {
+    firebaseDb.ref('users').on('child_added', snapshot => {
+      let userDetails = snapshot.val()
+      let userId = snapshot.key
+      commit('addUser', {
+        userId,
+        userDetails
+      })
+    })
+    firebaseDb.ref('users').on('child_changed', snapshot => {
+      let userDetails = snapshot.val()
+      let userId = snapshot.key
+      commit('updateUser', {
+        userId,
+        userDetails
+      })
+    })
   }
 }
 
-const getters = {}
+const getters = {
+  users: state => {
+    let usersFiltered = {}
+    Object.keys(state.users).forEach(key => {
+      if (key !== state.userDetails.userId) {
+        usersFiltered[key] = state.users[key]
+      }
+    })
+    return usersFiltered
+  }
+}
 
 export default {
   namespaced: true,