👨‍💻

Furkan Bayraktar furkan3ayraktar

👨‍💻

Co-founder & CTO @ Scrintal

furkan3ayraktar / LambdaEdgeIndexRedirect.js

Created March 31, 2018 13:44

Redirect requests to index.html within same folder from CloudFront with Labda@Edge.

	const path = require('path');

	exports.handler = (event, context, callback) => {
	const { request } = event.Records[0].cf;

	console.log('Request URI: ', request.uri);

	const parsedPath = path.parse(request.uri);
	let newUri;

furkan3ayraktar / DetectRelevantPaths.js

Created March 29, 2018 16:36

Detecting relevant paths in the request.

	const path = require('path');

	exports.handler = (event, context, callback) => {
	const { request, config } = event.Records[0].cf;

	let originalUri = request.uri;
	const parsedPath = path.parse(originalUri);

	if (parsedPath.ext === '') {
	// Every request that does not have an extension should be a route in our

furkan3ayraktar / CloudFrontMetadataInject.js

Last active October 5, 2023 16:38

Complete Lambda@Edge function to inject metadata.

	const path = require('path');
	const https = require('https');
	const zlib = require('zlib');

	const downloadContent = (url, callback) => {
	https.get(url, (res) => {
	let response;
	let body = '';

	if (res.headers['content-encoding'] === 'gzip') {

furkan3ayraktar / Handler.js

Created March 29, 2018 16:31

Handler for Lambda function

	exports.handler = (event, context, callback) => {
	const { request, config } = event.Records[0].cf;

	let originalUri = request.uri;
	const parsedPath = path.parse(originalUri);

	if (parsedPath.ext === '') {
	request.uri = '/index.html';

	let metaUrl = 'https://houseofradon.com';

furkan3ayraktar / FetchIndexHtmlAndCreateCloudFrontResponse.js

Created March 29, 2018 16:26

Function for fetching index.html of SPA and adding metaData to it. This function also prepares a response for CloudFront to cache.

	const fetchIndexHtmlAndCreateCloudFrontResponse = (url, metaTags, metaHeaders, callback) => {
	downloadContent(url, (isOk, result, headers) => {
	if (!isOk) {
	console.log('Error fetching content:', result);

	callback(false);
	} else {
	// We have <title>House of Radon</title> inside the actual index.html. We use that part to replace with actual metadata.
	const finalBody = result.replace('<title>House of Radon</title>', metaTags);

furkan3ayraktar / FetchMetaData.js

Created March 29, 2018 16:23

Function for fetching metadata from backend.

	const fetchMetaData = (url, callback) => {
	downloadContent(url, (isOk, result, headers) => {
	if (!isOk) {
	console.log('Error fetching meta data:', result);

	callback(false);
	} else {
	const metaData = JSON.parse(result);
	let metaTags = '';

furkan3ayraktar / DownloadContent.js

Created March 29, 2018 15:40

Content downloader used in Lambda@Edge function.

	const https = require('https');
	const zlib = require('zlib');

	const downloadContent = (url, callback) => {
	https.get(url, (res) => {
	let response;
	let body = '';

	if (res.headers['content-encoding'] === 'gzip') {
	response = res.pipe(zlib.createGunzip());