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About Joel Garcia

Founder @AllCodeCom, CTO @ConsejoSano_US, VPE @LiveVox, VPE Med-VantageSan Francisco, CA

How to Downgrade Chrome on Windows 10 Pro

By |December 15th, 2018|

How to Downgrade Chrome on Windows 10 Pro

Google Chrome rolled out an update today that broke the WebCam integration for one of our clients. They started to receive an error message when invoking the WebCam that they had not seen before.

We dug into the WebCam code, but it’s late on a Friday night. There is […]

Remove the User Cassandra from DataStax\Apache Cassandra Installations

By |December 11th, 2018|

Whenever you’re installing a new DataStax\Apache Cassandra cluster, you need to remember to remove the user cassandra.

We’ve seen this at a couple of customer installations now. If you do not change the user cassandra or at least alter the roles for the user cassandra. then you’re liable to see all sort of nasty repercussions. The […]

FLRup – Your Full Service iOS Mobile Application

By |December 6th, 2018|

AllCode recently released FLRup, the iOS mobile application, which enables you to fill up your gas tank and get a snack without leaving the comforts of your car.
Gone are the days of waiting for your pump, filling up your gas, spilling gas on your hands, and eating your snack with gas hands while fumbling with […]

AllCode releases Walk Pro – An Augmented-Reality iOS Mobile Application

By |December 6th, 2018|

This week, AllCode released Walk Pro for El Cavalho, an augmented-reality iOS mobile application used to count horse strides.
Walk Pro gives equestrians a competitive advantage by using augmented-reality to survey their surroundings to get the most accurate stride count possible. Inclines, declines, wet surfaces, and hard or soft ground are observed and accounted for in […]

Introducing NEO Flux – The Lightweight C# NEO API Server

By |October 1st, 2018|

NEO Flux aims to be the first lightweight C# NEO API server

AllCode has started publishing to our neo-flux github repository.

https://github.com/MobileAWS/neo-flux

AllCode started working on neo-flux after incurring pain with neo-python due to neo-python’s requirement that the NEO production or test blockchain be synchronized in order to make use of it. neo-flux is based upon on the […]

Pareto Network’s ERC20 Smart Contract Audit Report

By |August 27th, 2018|

# 1. Introduction

This document is a security audit of Pareto Network’s ERC-20 token contract supporting their decentralized ecosystem.

The scope of the security audit was restricted to:

* Scan the contracts listed above for generic security issues using automated systems and manually inspecting the results.
* Manually auditing the contracts listed above for security issues.

# 2. Files Audited

We […]

Configuring the NEO-GUI and NEO-LUX to use different NEO Seed Nodes

By |August 24th, 2018|

It is important to specify your NEO Seed Nodes, if you want to get the NEO blockchain up and running on your machine.

If you download the neo-gui from the NEO Project or neo-lux or neo-python from the City of Zion, you will run into issues synching the NEO blockchain. These projects are configured by default to […]

How to Deploy a Crowdsale Initial Coin Offering (ICO) to your own Private Testnet

By |September 27th, 2017|

We’ve been trying to deploy a Crowdsale Initial Coin Offering (ICO) Solidity contract to the Ethereum block chain for the better part of 2 months.

We’ve looked into the Open Zeppelins tutorials on How to Create Token an Initial Coin Offering using Truffle and Open Zeppelin. We were able to compile their Crowdsale ICO, but each […]

Ethereum Truffle Pet Shop DApp running on an Amazon EC2 Instance

By |August 24th, 2017|

In this tutorial, we’re going to deploy the Ethereum Truffle Pet Shop DApp demo to an AWS EC2 Micro instance.

If you’ve played with Ethereum’s Solidity programming language to deploy smart contracts to the blockchain, you’ve come to the realization that Ethereum and Solidity are desperately in need of a development framework. Truffle is the best […]

Technical Analysis of the $31 Million Dollar Ethereum Hack

By |July 22nd, 2017|

Here’s an interesting analysis of the $31 Million Ethereum Hack.

https://medium.freecodecamp.org/a-hacker-stole-31m-of-ether-how-it-happened-and-what-it-means-for-ethereum-9e5dc29e33ce

From a technical standpoint, it appears as though the software developers who built the Parity wallet put in a catch all function that enables unknown functions that are payable, that send you Ether, to default to depositing the Ether.

function() payable {
//msg.value is […]