如何将类语法内的JSON发送到API？

Question

假设我有一个普通的mjs文件和这样的API：

// Storage.mjs
class Storage {
    constructor(name, age) {
        this.name = name;
        this.age = age;
        this.json = JSON.stringify(this);
    }
}
var store = new Storage('eMart', 2);

// server.js
var express = require('express'),
    fs = require('fs'),
    data = fs.readFileSync('website/js/storage.mjs'),
    convert = JSON.parse(data);

var app = express(),
    server = app.listen(3000, initialize);

console.log(convert);

function initialize() {
    console.log("Local Host Initialized.");
}

app.use(express.static('website'));

我的目标是将JSON数据发送到class syntax内部的API中，但是每次Node抛出undefined的错误和类似此图片的错误时，都不会发生。

大多数人的问题是将数据从API发送到特定的js文件，这与我的情况完全相反。 从那里很难找到解决方案。

是否有将JSON数据传递到API的适当方法？

Answer 1

我想这就是你想要的吗？

 // assume this is loaded with fs.readFileSync const mjs = ` class Storage { constructor(name, age) { this.name = name; this.age = age; this.json = JSON.stringify(this); } } var store = new Storage('eMart', 2); // I assume you missed the quote here `; eval(mjs); // You can't just convert an js file into a JSON, you have to eval it first(not safe, use it with caution) let result = JSON.parse(store.json); // Since the file outputs a variable called "store" and it has a "json" property console.log(result); 

server.js代码段

// server.js
var express = require('express'),
    fs = require('fs'),
    data = fs.readFileSync('website/js/storage.mjs');  

(0, eval)(data);  // indirect eval
var convert = JSON.parse(store.json);

var app = express(),
    server = app.listen(3000, initialize);

console.log(convert);

function initialize() {
    console.log("Local Host Initialized.");
}

app.use(express.static('website'));