Making HTTP CRUD requests with Firebase Cloud Functions using node request-promise package

http-curd-req-in-firebase-cloud-functions.js

const functions = require('firebase-functions');
const cors = require('cors')({ origin: true });
const rp = require('request-promise');

exports.checkIP = functions.https.onRequest((req, res) => {
	cors(req, res, () => {
		if( req.method !== "GET" ) {
			return res.status(401).json({
				message: "Not allowed"
			});
		}

		rp({
			uri: 'https://api.ipify.org',
			qs: {
				format: 'json'
			},
			headers: {
				'User-Agent': 'Request-Promise',
				'Connection': 'keep-alive'
			},
			json: true // Automatically parses the JSON string in the response
		})
		.then(data => {
			console.log(data)
			return res.status(200).json({
				ip: data.ip
			})
		})
		.catch(err => {
			console.log(err)
			return res.status(500).json({
				message: err
			})
		})

	})
})