Month: August 2018

Stack of pancakes

Learning data structures – Stack in depth in C#

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What is a stack and how it works? What is an Abstract data type and how it’s related with the stack? In this post we’ll explore the stack data structure, I’ll go through the theory behind, explain why stacks are important programming tools, create a custom implementation of a stack with an array from scratch and finally, go through some interesting examples. By the end of this post I do hope that you’ll have a very good understanding of how a stack works under the hood and how you can use it to tackle day-to-day programming problems.

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Build a secure Angular client using ASP.NET Core and OAuth

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What is the resource owner password credentials grant? How can I secure my Angular client using OAuth and JWT bearer tokens? In this post I will focus on the resource owner password credentials grant, a different kind of credential flow supported by the OAuth protocol, and how it can be used to secure certain resources on an Angular application. Similarly to previous post, I will create the authorization server from scratch, then the resource server, a simple ASP.NET Core RESTful API, and finally the Angular 6 application, with all the bits and pieces required to prevent unauthorized access.

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How the pomodoro technique has changed the way I work

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For many years I thought that working hard was the way to go. Just make some TO-DO lists, pick work items in order, carry the task on and move to the next. This was my style and I thought this was the proper way. However this proved to be not that great plan, as I had a hard time tracking my progress, maintain focus on tasks at hand, while burnouts occurred more often than usual. On top of that, health issues risen to make things worse, degrading my focus even more. There were times that I was at terrible shape and my performance at work and at personal time decreased, spanning for periods of 3-4 weeks. So working that hard was not the way to go, apparently. Until I found out about the Pomodoro technique.

This is my story about the Pomodoro technique and how it helped me.

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ASP.NET Core API authentication using JWT bearer tokens

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What is OAuth 2.0 and how its flows can be applied for securing my applications? What does a token do and how it is useful in securing API’s? Is there any way to implement all these nice and easy in ASP.NET Core? In this post I will cover these topics, by first discussing about why token based security is so successful in security scenarios, and the OAuth protocol play in this. We’ll see more closely one of OAuth flows, the client credentials flow and implement it to secure an ASP.NET Web API application.

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