Nuxt/examples/plugins-vendor/plugins/vue-notifications.js

// This code will be injected before initializing the root App
import Vue from 'vue'
import VueNotifications from 'vue-notifications'

if (process.BROWSER_BUILD) {
  // Include mini-toaster (or any other UI-notification library
  const miniToastr = require('mini-toastr')

  // Here we setup messages output to `mini-toastr`
  const toast = function ({ title, message, type, timeout, cb }) {
    return miniToastr[type](message, title, timeout, cb)
  }

  // Binding for methods .success(), .error() and etc. You can specify and map your own methods here.
  // Required to pipe our outout to UI library (mini-toastr in example here)
  // All not-specified events (types) would be piped to output in console.
  const options = {
    success: toast,
    error: toast,
    info: toast,
    warn: toast
  }

  // Activate plugin
  Vue.use(VueNotifications, options)
}