Node.js with express middleware for K8s nginx ingress controller sidecar

gistfile1.txt

const express = require('express');
const app = express();
const axios = require('axios');
const PORT = 3000;
const TARGET_URL = 'http://main-app-service:8080';  // Replace with your main application's service URL

app.use(express.json());  // for parsing application/json

// Middleware to log request body
app.use((req, res, next) => {
    console.log('Request Body:', req.body);  // Log the request body
    next();  // Move to the next middleware (proxying the request in this case)
});

// Proxying the request to the main application
app.all('*', async (req, res) => {
    try {
        const response = await axios({
            method: req.method,
            url: `${TARGET_URL}${req.path}`,
            data: req.body,
            headers: req.headers
        });
        res.status(response.status).send(response.data);
    } catch (error) {
        res.status(error.response?.status || 500).send(error.response?.data || {});
    }
});

app.listen(PORT, () => {
    console.log(`Server is running on port ${PORT}`);
});