Asymmetrik/node-rest-starter

'use strict';

/* eslint-disable no-console */
import http from 'node:http';

import config from 'config';

const options = {
    hostname: 'localhost',
    port: config.get('port'),
    path: '/actuator/health',
    method: 'GET'
};

http
    .request(options as http.RequestOptions, (res) => {
        let body = '';

        res.on('data', (chunk) => {
            body += chunk;
        });

        res.on('end', () => {
            try {
                const response = JSON.parse(body);
                if (response.status === 'UP') {
                    process.exit(0);
                }

                console.log('Unhealthy response received: ', body);
                process.exit(1);
            } catch (err) {
                console.log('Error parsing JSON response body: ', err);
                process.exit(1);
            }
        });
    })
    .on('error', (err) => {
        console.log('Error: ', err);
        process.exit(1);
    })
    .end();