Vue.js 拦截器

我如何使用vue.js中的interceptor？因此，在每次请求/响应之前，它应该首先进入拦截器.我已经搜索了很多，但找不到关于这个的好文档.

我想这样使用JWTAuth:

(function (define) {
  'use strict'

  define(function (require) {

    var interceptor

    interceptor = require('rest/interceptor')

    /**
     * Authenticates the request using JWT Authentication
     *
     * @param {Client} [client] client to wrap
     * @param {Object} config
     *
     * @returns {Client}
     */
    return interceptor({
      request: function (request, config) {
        var token, headers

        token = localStorage.getItem('jwt-token')
        headers = request.headers || (request.headers = {})

        if (token !== null && token !== 'undefined') {
          headers.Authorization = token
        }

        return request
      },
      response: function (response) {
        if (response.status && response.status.code === 401) {
          localStorage.removeItem('jwt-token')
        }
        if (response.headers && response.headers.Authorization) {
          localStorage.setItem('jwt-token', response.headers.Authorization)
        }
        if (response.entity && response.entity.token && response.entity.token.length > 10) {
          localStorage.setItem('jwt-token', 'Bearer ' + response.entity.token)
        }
        return response
      }
    })

  })

}(
  typeof define === 'function' && define.amd ? define : function (factory) { module.exports = factory(require) }
  // Boilerplate for AMD and Node
))

但我不知道如何在每次请求/响应之前拦截.(我使用的是Laravel 5.2).