SiddharthaChowdhury’s gists

SiddharthaChowdhury / ELASTIC SEARCH API temp.postman_collection.json

Last active April 17, 2019 05:03

Elasticsearch CRUD implementation

SiddharthaChowdhury / Elasticsearch_install_ubuntu_1404.sh

Last active December 4, 2020 22:33

	# Change directory -> to your login directory
	cd ~


	# ---------------------------------- J A V A dependency installation
	# Installing Java 8
	# Add Oracle Java PPA to apt
	sudo add-apt-repository -y ppa:webupd8team/java

	# Update repo

SiddharthaChowdhury / JS_UTIL.js

Last active March 12, 2017 17:55

	module.exports = {
	uniqueID: function(){
	const length = 38;
	const unixTstamp = Math.round(new Date().getTime()/1000);
	const chars = Math.random().toString(36).slice(2)
	var result = '';
	for (var i = length; i > 0; --i) result += chars[Math.round(Math.random() * (chars.length - 1))];
	return result;
	},
	randomString: function(){ // returns 128 bit string

SiddharthaChowdhury / JS_InputREGEXTests.js

Created February 22, 2017 14:13

	module.exports = {
	onlyNumber: function(sample){
	// returns false if input is not a number
	return /^([0-9]+)$/.test(sample);
	},

	onlyAlphabets: function(sample){
	// returns false if input is not a string of alphabets
	return /^([a-z]+)$/.test(sample);
	},

SiddharthaChowdhury / jwt-module.js

Last active July 23, 2024 06:53

Implementation of JWT using private and public keys

	const fs = require('fs');
	const jwt = require('jsonwebtoken');
	// http://travistidwell.com/blog/2013/09/06/an-online-rsa-public-and-private-key-generator/
	// use 'utf8' to get string instead of byte array (1024 bit key)
	var privateKEY = fs.readFileSync('./private.key', 'utf8'); // to sign JWT
	var publicKEY = fs.readFileSync('./public.key', 'utf8'); // to verify JWT

	module.exports = {
	sign: (payload, $Options) => {
	/*

SiddharthaChowdhury / Approach2.js

Last active March 13, 2019 17:09

Tree Hierarchy parent-child from array of objects

SiddharthaChowdhury / utilResponsive.js

Last active August 21, 2019 09:45

Conditional Rendering

	export const getDeviceTypeInfo = () => {
	const { width, height } = getWindowDimension()
	const buildDeviceDetails = {
	deviceType: '',
	deviceTypeVariant: '',
	orientation: 'Portrait',
	width,
	height,
	isFallback: false
	}

SiddharthaChowdhury / aws_upload_setup.ts

Last active October 8, 2020 08:48

AWS_S3_UPLOAD

	import AWS from 'aws-sdk';
	import multer, { FileFilterCallback } from "multer"
	import multerS3 from "multer-s3";
	import {Request} from 'express';
	import { v4 as uuidv4 } from 'uuid';

	AWS.config.update({
	accessKeyId: process.env.AWS_ACCESS_KEY_ID,
	secretAccessKey: process.env.AWS_SECRET_KEY,
	signatureVersion: 'v4'

SiddharthaChowdhury / main.js

Created February 4, 2021 12:17

VideoPlayerDRM_LIVE

	(function () {
	'use strict';

	/**
	* Displays logging information on the screen and in the console.
	* @param {string} msg - Message to log.
	*/
	function log(msg) {
	var logsEl = document.getElementById('logs');

SiddharthaChowdhury / async-devtool.js

Last active May 10, 2022 11:32

Promise-settimeout-setinterval interceptor for devtool

	const initDevToolCode = () => {
	const devToolSignalName = 'DEVTOOL_ASYNC_MONITOR__ASYNC_STATUS_CHANGE';
	const getNameId = (customName) => customName \|\| `${(Math.random() + 1).toString(36).substring(7)}-${+ new Date()}`;

	// PubSub outside our app
	var eventPool = (function() {
	var topics = {};
	var hOp = topics.hasOwnProperty;

	return {

Austin4Silvers SiddharthaChowdhury