app.js

require("dotenv").config();

const express = require("express");
const mongoose = require("mongoose");
const router = require("./routes/routes");
const cors = require("cors");
const jwt = require("jsonwebtoken");
const createError = require("http-errors")
const logger = require("morgan")

const app = express();

require("./config/db.config");

app.use(
  cors({
    origin: ["https://gig-board-lz4a.vercel.app", "http://localhost:3000"],
    credentials: true,
  })
);

app.use(express.json())
app.use(express.urlencoded({extended: false}))
app.use(router)

app.use(logger("dev"))

app.use((req, res, next) => {
  next(createError(404, "Router not found"))
})

app.use((error, req, res, next) => {
  console.error(error);
  if (error instanceof mongoose.Error.ValidationError) {
    error = createError(400, error);
  } else if (error instanceof mongoose.Error.CastError) {
    error = createError(400, "Resource not found");
  } else if (error.message && error.message.includes("E11000")) {
    error = createError(400, "Resource already exists");
  } else if (error instanceof jwt.JsonWebTokenError) {
    error = createError(401, error);
  } else if (!error.status) {
    error = createError(500);
  }
  const data = {};
  data.message = error.message;
  data.errors = error.errors
    ? Object.keys(error.errors).reduce((errors, key) => {
        return {
          ...errors,
          [key]: error.errors[key].message || error.errors[key],
        };
      }, {})
    : undefined;
  res.status(error.status).json(data);
});


app.listen(3000, ()=>{
  ("Server is running on port 3000")
})