將請求從Backbone客戶端發布到NodeJS服務

Question

我無法以某種方式將數據從Backbone模型發送到NodeJS服務。
骨干模型

var Money = Backbone.Model.extend({
    url: 'http://localhost:3000/sendCoins',
    defaults: {
        fromAddress: "",
        toAddress: "",
        amount: ""
    },
    transferMoney: function(req, resp) {
        //get field values
        console.log(req.fromAddress); //prints fine
        this.save();
    }
});

var transferMoney = new Money();

Node JS服務

var app = express();
    app.listen(3000);
    app.use(express.json());

app.use(function (req, res, next) {

    // Website you wish to allow to connect
    res.setHeader('Access-Control-Allow-Origin', '*');

    // Request methods you wish to allow
    res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');

    // Request headers you wish to allow
    res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,content-type');

    // Set to true if you need the website to include cookies in the requests sent
    // to the API (e.g. in case you use sessions)
    res.setHeader('Access-Control-Allow-Credentials', true);

    // Pass to next layer of middleware
    next();
});


app.post('/sendCoins', function(req, res) {
    console.log(req.body.toAddress);
    console.log(JSON.stringify(req.body));
    console.log(req.body.amount);
});

當我從主干視圖發布請求時console.log(JSON.stringify(req.body)); 打印{"fromAddress":"","toAddress":"","amount":""} 。

Answer 1

如M Omary所述，您需要使用主體解析器才能訪問req.body 。 在app.post上方添加以下代碼以查看其是否有效：

app.use(express.bodyParser());