尚未为上下文_加载模块名称“ request”。使用require（[]）

Question

我正在尝试在HTML页面上加载一个向我返回JSON的函数以创建表。

有没有一种方法可以启动该函数，并将返回的JSON主体插入到HTML中存在的变量中，以便能够将其转换为{{1} }？

odatafunction.js

table

index.js

let Request = require("request");
const EventEmitter = require("events").EventEmitter;
const risultato = new EventEmitter();
let keys;
function createArrayKey(array, object) {
    let key = Object.keys(object);
    for (let i = 0; i < Object.keys(object).length; i++) {
        if(i === 0){
            array += object[key[i]];
        }else{
            array += "," + object[key[i]];
        }

    }
    return array;
}

function removeDuplicates(array, key) {
    let lookup = {};
    let result = [];
    array.forEach(element => {
        if (!lookup[element[key]]) {
            lookup[element[key]] = true;
            result.push(element);
        }
    });
    return result;
}


function check_missing_value(new_object2, max_key) {
    var breakLoop = false;
    var miss;
    for(var i=0; i<Object.keys(new_object2).length ; i++){
        miss = -1;
        for(var j = 0; j < Object.keys(max_key).length && !breakLoop ;j++){
            //console.dir(max_key[j]);
            if(!Object.keys(new_object2).includes(max_key[j])){
                new_object2[max_key[j]]="NULL";
                breakLoop = true;
            }

            }
        }


    return new_object2;
}
function retriveData(){
    const http = Request("https://services.odata.org/V3/OData/OData.svc/PersonDetails?$format=json",
        (error, response, body) => {
            if (error) {
                return console.dir(error);
            }
            let json_body = JSON.parse(body);
            let value_json = json_body.value;
            let new_json = [];
            var html = '<table class="table table-striped">';
            html += '<tr>';
            //console.dir(Object.keys(value_json[0]));
            let max_key = (Object.keys(value_json[0]));
            keys = max_key;
            for (var i = 0; i < Object.keys(keys).length; i++) {
                html += '<th>' + keys[i] + '</th>';
            }
            html += '</tr>';
            for (let i = 0; i < Object.keys(value_json).length; i++) {
                let new_object2 = {};
                let element = value_json[i];
                html += '<tr>';
                for (var j = 0; j < Object.keys(element).length; j++) {

                    var temp = Object.keys(element);
                    switch (typeof element[temp[j]]) {
                        case "object":
                            var array = createArrayKey("", element[temp[j]]);
                            new_object2[temp[j]] = array;
                            html += '<td>' + array + '</td>';
                            break;
                        case "number":
                            new_object2[temp[j]] = element[temp[j]];
                            html += '<td>' + element[temp[j]] + '</td>';
                            break;
                        case "string":
                            new_object2[temp[j]] = element[temp[j]];
                            html += '<td>' + element[temp[j]] + '</td>';
                            break;
                        case "boolean":
                            new_object2[temp[j]] = element[temp[j]];
                            html += '<td>' + element[temp[j]] + '</td>';
                            break;
                        case "bigint":
                            new_object2[temp[j]] = element[temp[j]];
                            html += '<td>' + element[temp[j]] + '</td>';
                            break;
                    }

                }
                html += '<tr>';
                new_object2 = check_missing_value(new_object2, max_key);
                new_json.push(new_object2);
            }
            html += '</table>';
            removeDuplicates(new_json, 'PersonID');
            risultato.data = new_json;
            risultato.emit('update');
            console.dir(html);
        });
    risultato.on('update', function () {
        //console.log(risultato.data); // HOORAY! THIS WORKS!
    });
    return risultato.data;
}


define({
     results : retriveData()
});
module.exports.retriveData = retriveData;

index.ejs

var express = require('express');
var router = express.Router();

/* GET home page. */
router.get('/', function(req, res, next) {
  res.render('index', { title: 'Express' });
  //res.sendFile('index.js');
});

module.exports = router;