api/index.ts

import mongoose from "mongoose";
import express from "express";
const app = express();
import * as dotenv from "dotenv"
dotenv.config()
import sernTime from "./schemas/sern-time.js"
import bodyParser from "body-parser"
import rateLimit from 'express-rate-limit'
app.use(bodyParser.json());
app.disable('x-powered-by');

const limiter = rateLimit({
	windowMs: 1 * 60 * 1000, // 15 minutes
	max: 10, // Limit each IP to 100 requests per `window` (here, per 15 minutes)
	message: {"error": "You just got ratelimited."},
	standardHeaders: true, // Return rate limit info in the `RateLimit-*` headers
	legacyHeaders: false, // Disable the `X-RateLimit-*` headers
})

// Apply the rate limiting middleware to all requests
app.use(limiter)

await mongoose.connect(`${process.env.MONGODB}`).then(() => { console.log("Connected to MongoDB!") });

app.post('/sern/newTime', async (req, res, next) => {
	if(req.body.name && req.body.timezone && (req.body.key === process.env.SERN_TIME)) {
		sernTime.exists({ name: req.body.name }, function (err, doc) {
			if (err) {
				throw err
			} else {
				if (doc) {
					res.status(400).json({"error": "User already exists in the database."})
				} else {
					const saveToDB = new sernTime({name: req.body.name, timezone: req.body.timezone})
					saveToDB.save()
					res.json({"ok": "kay done"})
				}
			}
		});
	} else {
		res.status(400).json({"error": "make sure you have name, timezone and key as a JSON post. You could also have your key wrong."})
	}
})

app.get('/sern/availableTime', async (req, res, next) => {
	let get = await sernTime.find()
	get = get.map((data) => data.name)
	res.send(get)
})

app.get('/sern/getTime', async (req, res, next) => {
	if (req.query.name) {
		let get = await sernTime.find({name: req.query.name})
		get = get.map((data) => data.timezone)
		res.send(get)
	} else {
		res.json({"error": "Option name not provided."})
	}
})

app.listen(7272, () => {
	console.log(`listening`)
})