AcidLeroy’s gists

AcidLeroy / find_max_foreach_user.py

Last active November 15, 2015 03:48

Finding Max of RDD Triplet for Each User

	from pyspark import SparkContext, SparkConf

	def reduce_by_max(rdd):
	"""
	Helper function to find the max value in a list of values i.e. triplets.
	"""
	max_val = rdd[0][2]
	the_index = 0

	for idx, val in enumerate(rdd):

AcidLeroy / convert_jpgs_in_current_dir.sh

Created December 8, 2015 05:28

convert all jpgs to pngs

	!#/bin/bash
	find ./ -name .jpg -exec mogrify -format png *.jpg {} \;

AcidLeroy / vector_conversion_example.pyx

Created April 8, 2016 00:50

Example of how to convert std::vector of doubles to memviews and back using Cython

	from libcpp.vector cimport vector

	cdef convert_memview_to_vector(double[::1] &mem):
	cdef vector[double] arr
	arr.reserve(mem.shape[0])
	for i in mem:
	arr.push_back(i)
	return arr

	cdef convert_vector_to_memview(vector[double] &vec):

AcidLeroy / discovery_server.js

Created June 21, 2018 14:26

http with discovery channel

	const express = require('express')
	const app = express()
	const DC = require('discovery-channel')
	const crypto = require('crypto')

	app.get('/', (req, res) => {
	console.log('Received a request')
	res.send('Hello World')
	})
	const port = 30000

AcidLeroy / discovery_client.js

Created June 21, 2018 14:27

http discovery client

	const DC = require('discovery-channel')
	const crypto = require('crypto')
	const http = require('http');


	let id = process.argv[2]

	if (!id) {
	console.log('You must have an ID')
	process.exit(1)

AcidLeroy / get-user-and-post.js

Last active July 9, 2018 23:09

Exploring Functions

	const {Either, IO} = require('monet')
	const {compose, map} = require('ramda')

	// Pretend to get a database entry
	// getUser :: String -> IO ( JSON )
	var getUser = username => IO(() => (username === 'Marge') ? {name: 'Marge Simpson', address: '123 Fake St'} : {error: 'user ' + username + ' not found!'})

	// Pretend to upload some information
	// uploadUser :: JSON -> IO ()
	var uploadUser = user => IO(() => console.log('Uploading user: ', user.name, ' at address', user.address))

AcidLeroy / bad_route.js

Created July 26, 2018 20:33

routes not working

	var html = require('choo/html') // 1.
	var choo = require('choo')

	var app = choo() // 2.
	app.route('/', function(state, emit) { // 3.
	return html`
	<body> <!-- 4. -->
	Hello World
	</body>
	`

AcidLeroy / encryption_nedb.ts

Created January 11, 2019 00:02

This demonstrates how you can encrypt data using libsodium-wrappers for the Nedb NoSQL database. The algorithm is xchacha20poly1305

	import { generateKey, encryptDocument, decryptDocument, ready } from 'easy-doc-crypt'
	import Datastore = require('nedb')


	(async function() {
	await ready()
	const key = generateKey('MyPassword123')
	function encrypt(serialized :string) {
	console.log('encrypt')
	let d = encryptDocument(key.secret, serialized)

AcidLeroy / lens-sync-example.js

Created January 22, 2019 01:49

An incomplete example of syncing lenses

	const PouchDB = require('pouchdb')
	const tmp = require('tmp');
	const assert = require('assert');
	const R = require('ramda')
	PouchDB.plugin(require('crypto-pouch'));

	// Create a temporary directory
	var tmpobj = tmp.dirSync();
	let dbLoc = `${tmpobj.name + '/mydb'}`
	console.log(`dbLoc = ${dbLoc}`)

AcidLeroy / gist:a979a3caf7708fafec3631ead9c3e5f1

Created March 26, 2019 23:23

14ww3NG4sotUQdJGttBGuuZqkgaG9f7ran https://explorer.blockstack.org/address/14ww3NG4sotUQdJGttBGuuZqkgaG9f7ran

Cody Eilar AcidLeroy