index.js

const express = require('express');
const cors = require('cors');
const app = express();

app.use(cors());

const path = require('path');
const port = process.env.PORT || 3000;
const apiData = require("./indiaPincode.json");

app.use(express.static(path.join(__dirname, '/public')))

app.get("/", (req, res) => {
    res.send("Namaste");
});

// app.get("/pincode", (req, res) => {
//     res.send(apiData)
// });

app.get("/pincode", (req, res) => {
    const {Pincode} = req.query;
    let results = [...apiData];
    if (Pincode) {
        results = results.filter(r => +r.Pincode === +Pincode);
    }
    res.json(results);
});

app.listen(port, ()=>{
    console.log("Namaste from terminal");
})


// http://localhost:3000/pincode?Pincode=828112