Update modules.

src/modules/users.js

@@ -0,0 +1,38 @@
+import apiService from '../services/api/api.service.js'
+
+const users = {
+  state: {
+    currentUser: false,
+    loggingIn: false
+  },
+  mutations: {
+    setCurrentUser (state, user) {
+      state.currentUser = user
+    },
+    beginLogin (state) {
+      state.loggingIn = true
+    },
+    endLogin (state) {
+      state.loggingIn = false
+    }
+  },
+  actions: {
+    loginUser ({commit, state}, userCredentials) {
+      commit('beginLogin')
+      apiService.verifyCredentials(userCredentials)
+        .then((response) => {
+          if (response.ok) {
+            response.json()
+              .then((user) => commit('setCurrentUser', user))
+          }
+          commit('endLogin')
+        })
+        .catch((error) => {
+          console.log(error)
+          commit('endLogin')
+        })
+    }
+  }
+}
+
+export default users