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Srushtika Neelakantam Srushtika

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@Srushtika
Srushtika / server.js
Last active October 14, 2021 11:21
WebSockets server tutorial
const http = require('http');
const crypto = require('crypto');
const static = require('node-static');
const file = new static.Server('./');
const server = http.createServer((req, res) => {
req.addListener('end', () => file.serve(req, res)).resume();
});
server.on('upgrade', function (req, socket) {
if (req.headers['upgrade'] !== 'websocket') {
socket.end('HTTP/1.1 400 Bad Request');
@Srushtika
Srushtika / filterWithHive-Lambda.js
Created May 13, 2021 09:41
//code from the lambda function
const request = require("request");
const axios = require("axios");
const ABLY_API_KEY = "<YOUR-ABLY-API-KEY>";
let textData = "";
let originalData;
let originalMessagePayload;
const publishMessageToAbly = async (textData, originalData, msgTimestamp) => {
@Srushtika
Srushtika / server.js
Last active January 11, 2021 10:11
WebSockets server tutorial
// Allocate somewhere to store the final message data
const data = Buffer.alloc(payloadLength);
// Only unmask the data if the masking bit was set to 1
if (isMasked) {
// Loop through the source buffer one byte at a time, keeping track of which
// byte in the masking key to use in the next XOR calculation
for (let i = 0, j = 0; i < payloadLength; ++i, j = i % 4) {
// Extract the correct byte mask from the masking key
const shift = j == 3 ? 0 : (3 - j) << 3;
const mask = (shift == 0 ? maskingKey : (maskingKey >>> shift)) & 0xFF;
@Srushtika
Srushtika / client.js
Created November 16, 2018 14:39
WebSockets server tutorial
// Establish a WebSocket connection to the echo server
const ws = new WebSocket('wss://echo.websocket.org');
// Add a listener that will be triggered when the WebSocket is ready to use
ws.addEventListener('open', () => {
const message = 'Hello!';
console.log('Sending:', message);
// Send the message to the WebSocket server
ws.send(message);
});
// Add a listener in order to process WebSocket messages received from the server
@Srushtika
Srushtika / nickname.js
Last active June 11, 2020 22:00
Code snippet 34 - For multiplayer space invaders article
let nickname = "";
let nicknameInput = document.getElementById("nickname");
function setNickname() {
localStorage.clear()
nickname = nicknameInput.value;
localStorage.setItem("nickname", nickname);
}
if(nicknameInput){
@Srushtika
Srushtika / gameover.js
Created June 11, 2020 12:43
Code snippet 36 - For multiplayer space invaders article
let winner = localStorage.getItem("winner");
let firstRunnerUp = localStorage.getItem("firstRunnerUp");
let secondRunnerUp = localStorage.getItem("secondRunnerUp");
let totalPlayers = localStorage.getItem("totalPlayers");
document.getElementById("winner-announcement").innerHTML =
winner + " won the game!";
if (firstRunnerUp) {
document.getElementById("first-runnerup").innerHTML =
@Srushtika
Srushtika / winner.js
Created June 11, 2020 12:42
Code snippet 35 - For multiplayer space invaders article
let winner = localStorage.getItem("winner");
let firstRunnerUp = localStorage.getItem("firstRunnerUp");
let secondRunnerUp = localStorage.getItem("secondRunnerUp");
let totalPlayers = localStorage.getItem("totalPlayers");
document.getElementById("winner-announcement").innerHTML =
winner + " won the game!";
if (firstRunnerUp) {
document.getElementById("first-runnerup").innerHTML =
@Srushtika
Srushtika / gameover.html
Created June 11, 2020 12:35
Code snippet 33 - For multiplayer space invaders article
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Space Invaders</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="description" content="Multiplayer space invaders" />
<link
id="favicon"
@Srushtika
Srushtika / winner.html
Created June 11, 2020 12:34
Code snippet 32- For multiplayer space invaders article
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Space Invaders</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="description" content="Multiplayer space invaders" />
<link
id="favicon"
@Srushtika
Srushtika / intro.html
Created June 11, 2020 12:33
Code snippet 31- For multiplayer space invaders article
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Space Invaders</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="description" content="Multiplayer space invaders" />
<link
id="favicon"