index.ts

import dotenv from "dotenv";
dotenv.config();
import bodyParser from "body-parser";
import cookieParser from "cookie-parser";
import cors from "cors";
import express from "express";
import helmet from "helmet";
import swaggerJSDoc from "swagger-jsdoc";
import swaggerUi from "swagger-ui-express";
import mongoSanitize from "express-mongo-sanitize";
import "express-async-errors";
import morgan from "morgan";
import { useErrorHandler, useNotFound, useRateLimiter } from "./middlewares/";
import { swaggerOptions } from "./docs/swagger.docs";
import { connectToDb } from "./utils";
import http from "http";
import { initSocket } from "./sockets/socket.server";
import {
  helloRouter,
  authRouter,
  buyerRouter,
  merchantRouter,
  productRouter,
  collectionRouter,
  transactionRouter,
} from "./routes";
import { logger, redisClient } from "./utils";

const PORT = process.env.PORT || 2800;
const app = express();
const server = http.createServer(app);

initSocket(server);

const corsOptions = {
  origin: (origin: any, callback: any) => {
    // Check if the origin matches any of the patterns
    if (
      !origin ||
      allowedOriginPatterns.some((pattern) => pattern.test(origin))
    ) {
      callback(null, true);
    } else {
      callback(new Error("Not allowed by CORS"));
    }
  },
  credentials: true,
};

//middlewares
const allowedOriginPatterns = [
  /http:\/\/localhost:3000$/,
  /^https:\/\/agronomix\.vercel\.app/,
];

app.use(cors(corsOptions));
app.use(cookieParser());
app.use(bodyParser.json({ limit: "100mb" }));
app.use(morgan("dev"));
app.use(bodyParser.urlencoded({ extended: true }));
app.use(useRateLimiter);
app.use(helmet());
app.use(mongoSanitize());

//endpoints
app.use("/api", helloRouter);
app.use("/api/auth", authRouter);
app.use("/api/buyer", buyerRouter);
app.use("/api/buyer/collection", collectionRouter);
app.use("/api/merchant", merchantRouter);
app.use("/api/product", productRouter);
app.use("/api/transaction", transactionRouter);

const swaggerSpec = swaggerJSDoc(swaggerOptions);
app.use("/api-docs", swaggerUi.serve, swaggerUi.setup(swaggerSpec));

app.use(useNotFound);
app.use(useErrorHandler);

server.listen(PORT, () => {
  console.log(`Server running on port ${PORT}`);
  logger.info({ message: `...app listening on port ${PORT}` });
  connectToDb();
});

export default server;