server.js

//CREATING BASIC EXPRESS APP
const express = require("express");
const app = express();


// CONFIGURING FOR ENV
const dotenv = require("dotenv");
dotenv.config();

// SUPPORT FOR JSON & PUBLIC FOLDER
app.use(express.static(__dirname + "/public"));
app.use(express.json());

// SETTING VIEW ENGINE AS EJS
app.set("view engine", "ejs");
// REQUIRING PACKAGE TO CRAWL DIRECTORIES
var read = require("read-directory");

var contents = read.sync(process.cwd() + "/models");

// console.log(contents)

// GETTING MODEL FILE CONTENTS AS ARRAY
const tables = Object.keys(contents);
const attrs = {};

// REQUIRING MODEL USING KEYS
tables.map(
  (table) =>
    (attrs[`${table}+Model`] = require(process.cwd() + `/models/${table}`))
);
// CREATING ARRAY FOR DB MODELS
const arr = Object.values(attrs);

// console.log(arr)

const fields = [];
const models = []
// EXTRACTING ATTRIBUTES FROM MODELS
arr.forEach((model) => {
  fields.push(model.schema.obj);
  models.push(model.collection.collectionName);
});

// console.log(fields)
// console.log(models)


//listening to requests
app.listen(3001, (req, res) => {
  console.log("visualization server up at http://localhost:3001");
});

// SETTING ROUTE TO home.ejs
app.get("/", (req, res) =>{
  res.render(__dirname + "/views/home", { modelsArr: arr, fieldsArr: fields})
});