Basic vue.js 2 and vue-resource http get with variable assignment

问题

I'm really struggling to get the most basic REST functionality to work in vue.js 2.

I'd like to get data from some endpoint and assign the returned value to a variable of my Vue instance. Here's how far I got.

var link = 'https://jsonplaceholder.typicode.com/users';
var users;

Vue.http.get(link).then(function(response){
    users = response.data;
}, function(error){
    console.log(error.statusText);
});

new Vue ({
    el: '#user-list',
    data: {
        list: users
    }
});

Inside the promise, I can access the response data, but I cannot seem to assign it to users or even to data of the Vue instance.

Needless to say, I'm completely new to vue.js and thankful for any help.

Stack: vue.js 2.03, vue-resource 1.0.3

Cheers!

回答1:

You can create an object and pass it to the vue instance like that :

var link = 'https://jsonplaceholder.typicode.com/users';
var data = { 
    list: null 
};

Vue.http.get(link).then(function(response){
    data.list = response.data;
}, function(error){
    console.log(error.statusText);
});

new Vue ({
    el: '#app',
    data: data 
});

Or you can create a function under the methods object and then call it in the mounted function :

var link = 'https://jsonplaceholder.typicode.com/users';
new Vue ({
    el: '#app',
    data: {
        list: null
    },
    methods:{
        getUsers: function(){
            this.$http.get(link).then(function(response){
                this.list = response.data;
            }, function(error){
                console.log(error.statusText);
            });
        }
    },
    mounted: function () {
        this.getUsers();
    }
});

来源：https://stackoverflow.com/questions/40069455/basic-vue-js-2-and-vue-resource-http-get-with-variable-assignment

标签

javascript

Vue.js

vue-resource