api.expres-ts/index.ts

ExpressJS with Typescript project

import express, { json, urlencoded, Express, Request, Response } from "express";
import bodyParser from "body-parser";
import dotenv from "dotenv";
import cors from "cors";

dotenv.config();

const allowedOrigins = ["http://localhost:3000"];
const corsOptions = {
  origin: allowedOrigins,
};

const app: Express = express();
app.use(cors(corsOptions));
app.use(json({ limit: "500kb" }));
app.use(urlencoded({ limit: "500kb", extended: true }));
app.use(bodyParser.urlencoded({ limit: "500kb", extended: false }));
const port = process.env.PORT;

if (!process.env.PORT) {
  throw new Error("Port not found");
}
let count = 0;
app.get("/", (req: Request, res: Response) => {
  res.json({ count: count });
});
app.get("/add", (req: Request, res: Response) => {
  res.json({ count: count++ });
});

app.listen(port, () => {
  console.log(`⚡️[server]: Server is running at http://localhost:${port}`);
});