loginUser (store, accessToken) {
      return new Promise((resolve, reject) => {
        const commit = store.commit
        commit('beginLogin')
        store.rootState.api.backendInteractor.verifyCredentials(accessToken)
          .then((data) => {
            if (!data.error) {
              const user = data
              // user.credentials = userCredentials
              user.credentials = accessToken
              user.blockIds = []
              user.muteIds = []
              commit('setCurrentUser', user)
              commit('addNewUsers', [user])

              getNotificationPermission()
                .then(permission => commit('setNotificationPermission', permission))

              // Set our new backend interactor
              commit('setBackendInteractor', backendInteractorService(accessToken))

              if (user.token) {
                store.dispatch('setWsToken', user.token)

                // Initialize the chat socket.
                store.dispatch('initializeSocket')
              }

              // Start getting fresh posts.
              store.dispatch('startFetchingTimeline', { timeline: 'friends' })

              // Start fetching notifications
              store.dispatch('startFetchingNotifications')

              // Get user mutes
              store.dispatch('fetchMutes')

              // Fetch our friends
              store.rootState.api.backendInteractor.fetchFriends({ id: user.id })
                .then((friends) => commit('addNewUsers', friends))
            } else {
              const response = data.error
              // Authentication failed
              commit('endLogin')
              if (response.status === 401) {
                reject('Wrong username or password')
              } else {
                reject('An error occurred, please try again')
              }
            }
            commit('endLogin')
            resolve()
          })
        .catch((error) => {
          console.log(error)
          commit('endLogin')
          reject('Failed to connect to server, try again')
        })
      })
    }