Category: english

Creating DApps with Ethereum, Solidity, Web3 and MetaMask

November 20, 2017
Yesterday I had a talk on the JS.talks() conference in Sofia on “Creating DApps with Ethereum“. I demonstrated how to create a “Document Registry” ADpp on the Ethereum blockchain network, using a smart contract coded in Solidity and connecting to the Ethereum network through the Web browser from JavaScript app using MetaMask and its Injected

Blockchain Introduction

October 18, 2017
Recently I had a talk about the Blockchain technologies, cryptocurrencies and their application to the real world economy. Watch my blockchain talk as video: About this Blockchain Talk Blockchain is a decentralized ledger (distributed database with no owner) running the infrastructure for digital cryptocurrencies like Bitcoin and Ethereum. It this talk the speaker will explain

Creating a Blog System with Spring MVC, Thymeleaf, JPA and MySQL

August 5, 2016
Recently, I created a detailed Spring MVC tutorial for my students at the Software University (SoftUni), as part of their training course “Software Technologies”, so I want to share it with anyone interested to learn how to integrate Java, Spring Framework, Spring MVC, Spring Boot, Spring services, repositories, controllers, models, Thymeleaf views, Spring form validation,

Map Reduce and Apache Hadoop

June 4, 2016
I had a talk about Map-Reduce and Apache Hadoop at the Spring Conference of the Bulgarian Oracle User Group (BGOUG) – Borovets, June 2016. I post the demo source code, slides and video here. Map-Reduce and Apache Hadoop – Video Map-Reduce and Apache Hadoop – Slides Map-Reduce and Apache Hadoop – Source Code Map-Reduce-Hadoop-Demos.zip
Turtle Graphics Library for C# and .NET

Turtle Graphics .NET – C# Open Source Library

February 14, 2016
Albeit left behind to a certain extent, the good old turtle is still an excellent way to introduce people to the world of programming. “Turtle graphics” has implementations in a variety of languages with Logo being the trendsetter for the older school of programmers and survives to this day with a very beginner friendly and

ASP.NET MVC Practical Hands-On Lab Tutorial (Free from the Software University)

May 28, 2015
As part of the ASP.NET MVC Web Development course at the Software University I developed a practical MVC hand-on lab (tutorial) that gives rich experience in building data-driven Web applications with ASP.NET MVC, ASP.NET MVC 5, SQL Server, C#, Visual Studio, Entity Framework (code first), AJAX, jQuery, Bootstrap and other modern technologies and tools. In

Database Apps, Entity Framework, SQL Server, XML & JSON – Practical Hands On Lab by Nakov

March 23, 2015
The goal of this practical hands on lab is to learn how to develop database applications with C#, Entity Framework and SQL Server. If you follow the tutorial steps below, you will learn how to create a database, map the database to EF data model (database first and code first), query the database, import and

ASP.NET MVC Web API Identity (OWIN Security): Auto Login after Register + Custom Login Service Endpoint

December 22, 2014
Recently I worked on ASP.NET MVC WebAPI-based REST service and I needed to implement public services + non-public services (after login). I needed very simple register / login / logout. I started from the default Web API REST service template from Visual Studio and this ended to tons of auto-generated code for my services. Nice,