Ganapati V S ganapativs

How we incorporate next and cloudfront (2018-04-21)

Feel free to contact me at [email protected] or tweet at me @statisticsftw

This is a rough outline of how we utilize next.js and S3/Cloudfront. Hope it helps!

It assumes some knowledge of AWS.

Goals

Time Travel Debugging

Time Travel refers to the ability to record a tab and later replay it ([WebReplay][wrr]). The technology is useful for local development, where you might want to:

pause and step forwards or backwards
pause and rewind to a prior state
rewind to the time a console message was logged
rewind to the time an element had a certain style or layout
rewind to the time a network asset loaded

This API was removed in React 17

Interaction tracing with React

React recently introduced an experimental profiler API. After discussing this API with several teams at Facebook, one common piece of feedback was that the performance information would be more useful if it could be associated with the events that caused the application to render (e.g. button click, XHR response). Tracing these events (or "interactions") would enable more powerful tooling to be built around the timing information, capable of answering questions like "What caused this really slow commit?" or "How long does it typically take for this interaction to update the DOM?".

With version 16.4.3, React added experimental support for this tracing by way of a new NPM package, scheduler. However the public API for this package is not yet finalized and will likely change with upcoming minor releases, so it should be used with caution.

	const file = this.input.files[0];
	//console.log(file);
	var xhr = new XMLHttpRequest();
	xhr.addEventListener('load', (e) => {
	console.log(e.target.response);
	});
	xhr.open('POST', host + 'fileuploadstream', true);
	xhr.setRequestHeader('body', JSON.stringify({ id: 'somebucketfolderid', fn: file.name }));
	xhr.send(file);

	# Generate a new pgp key: (better to use gpg2 instead of gpg in all below commands)
	gpg --gen-key
	# maybe you need some random work in your OS to generate a key. so run this command: `find ./* /home/username -type d \| xargs grep some_random_string > /dev/null`

	# check current keys:
	gpg --list-secret-keys --keyid-format LONG

	# See your gpg public key:
	gpg --armor --export YOUR_KEY_ID
	# YOUR_KEY_ID is the hash in front of `sec` in previous command. (for example sec 4096R/234FAA343232333 => key id is: 234FAA343232333)

	{
	"name": "tsquickstart",
	"version": "1.0.0",
	"description": "Boilerplate for quick one-off TypeScript projects. Just run `npm start`",
	"scripts": {
	"init": "test -f tsconfig.json \|\| (tsc --init -t ESNext -m ESNext && npm install)",
	"start": "npm run init && concurrently \"npm run watch\" \"npm run serve\"",
	"serve": "http-server",
	"watch": "tsc -p . --watch",
	"build": "tsc -p ."

	function logger(strings,...values) {
	var str = "";
	for (let i = 0; i < strings.length; i++) {
	if (i > 0) {
	if (values[i-1] && typeof values[i-1] == "object") {
	if (values[i-1] instanceof Error) {
	if (values[i-1].stack) {
	str += values[i-1].stack;
	continue;
	}

	const http2 = require('http2');
	const fs = require('fs');
	const path = require('path');
	const zlib = require('zlib');
	const brotli = require('brotli'); // npm package

	const PORT = 3032;
	const BROTLI_QUALITY = 11; // slow, but we're caching so who cares
	const STATIC_DIRECTORY = path.resolve(__dirname, '../dist/');
	const cache = {};