Category Archives: Web

The New Stacks Open Development Community

Posted on November 9, 2021 by Erik Calco

participants continue to share the belief that they ‘can do more in concert than individually’ — OpenSource.com I propose developers in the Stacks blockchain ecosystem join together in one identity — The Open Development Community. Our primary objective is to … Continue reading →

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Simplifying WebSockets User Interface (UI) Clients with Happy Pub/Sub Patterns

Posted on October 26, 2021 by Erik Calco

A back-end WebSocket for live streaming data can typically offer subscriptions to data. Your client UI will typically have one connection to your back-end for all your subscriptions. The challenge becomes how to you handle many components in your UI … Continue reading →

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Learning the Stacks SDK/API – The Demo Client

Posted on October 17, 2021 by Erik Calco

Stacks has a RESTful API and a library called Stacks.js. Stacks.js is a set of libraries for Typescript clients “which provide everything you need to work with the Stacks blockchain.” To develop a better understanding, I created a web client, a … Continue reading →

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Creating a new Angular Site on Google Firebase

Posted on January 10, 2020 by Erik Calco

Angular is a framework for creating front-ends for websites. Technically, the site is static from a web hosting perspective, meaning that in and of itself it does not have a database, but rather only serves static files from the web … Continue reading →

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Using JSONP in Angular 8

Posted on September 8, 2019 by Erik Calco

JSONP is one way to get around CORS when getting data from a REST service. It does require a callback feature on the part of the service, which isn’t readily clear in some of the blogs and samples online for … Continue reading →

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Added Charting to Automated Trading System

Posted on January 18, 2017 by Erik Calco

This is a continuation of Developing an Automated Trading System.  Many of us use very robust charting software, including the popular thinkorswim platform, that does more than I plan to create in my system.  The requirement I ran into that … Continue reading →

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Created Backtesting of Signals and Algos

Posted on November 30, 2016 by Erik Calco

This is a continuation of Developing an Automated Trading System.  Began algorithms with simple strategies.  This tests a range of inputs for a strategy. For example, you can test a range of trailing stops from 1 to 15% with 0.5% … Continue reading →

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Developing an Automated Trading System

Posted on October 7, 2016 by Erik Calco

It has been my dream since I was a kid and I saw the Matthew Broderick movie War Games in a theater in 1983 to build an automated trading system using AI.   This year I have begun to live that … Continue reading →

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FBLA e-Business team created how-to order YouTube video

Posted on May 15, 2013 by Erik S

In order to help people reserve seats for their high school graduation, the Harvey High School FBLA e-Business team of 2013 created this YouTube video: HarveyGrads.com Tutorial – How to select a graduation seat

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Firefox Improving privacy

Posted on February 23, 2013 by Erik S

It used to be that the only way to track visitors was via web logs. No visitor can escape them. If they request a page or any content from your site, you have a log of it along with any … Continue reading →

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