Uncaught TypeError: Cannot Read Property 'get' Of Undefined In VueJs

I have following code

JS var vm = new Vue({ el: '#vue-instance', data: { }, ready:function(){ this.loadCountries(); },

Solution 1:

$http.get is from Vue Resource. Make sure you are pulling that in properly by adding vue-resource to your package.json, install it via npm install and in code:

var Vue = require('vue');

Vue.use(require('vue-resource'));

To use this in fiddle, you have to add vue-resource cdn link in external resources and use following in code:

Vue.use(VueResource)

See working demo: https://jsfiddle.net/49gptnad/187/

Solution 2:

In order to use $http you must install the vue-resource middleware first. You can use the following command to install it.

npm install vue-resource --save

After its installed go to your main.js file and import the vue resource as follows

import vueResource from 'vue-resource'

Now its imported so we just have to call the use method of Vue to work with this middleware. You can call the use method as follows.

Vue.use(vueResource)

Solution 3:

As you have no plugin for vue-resource your this.$http is undefined. To add Vue-resource on js-fiddle add https://cdn.jsdelivr.net/g/vue@2.0.0-rc.4,vue.resource@1.0.0 to the external scripts section.

Solution 4:

I fixed this issue of the following mode:

npm install bootstrap-vue --save
npm install vue-resource --save

in main.js

import Vue from './bootstrap'
import BootstrapVue from 'bootstrap-vue'

Vue.use(BootstrapVue)

create bootstrap.js

import Vue from 'vue'
import VueResource from 'vue-resource'

Vue.use(VueResource)

export { Vue }

In App.vue

this.$http.get('/api/module/all').then(...

Solution 5:

I used another way as of Oct 2019. I first installed using NPM like this

npm install axios --save

I used this below later and doing this below got rid of the error.

import  axios  from 'axios';