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OPA for HTTP Authorization

Open Policy Agent[1] is a promising, light weight and very generic policy engine to govern authorization is any type of domain. I found this comparion[2] very attractive in evaluating OPA for a project I am currently working on, where they demonstrate how OPA can cater same functionality defined in RBAC, RBAC with Seperation of Duty, ABAC and XACML.   Here are ...

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PyQt5 Drawing Tutorial (Painting APIs)

In this tutorial, we will learn how to draw vector graphics in PyQt5. In Python, the PyQt5 module is the easiest module you can use for drawing purposes as you will see. Before getting started, let’s create a window using PyQt5 where we will be drawing our graphics. Create a PyQt5 window To create the window, import the following modules: ...

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JavaScript Validator Example

Greetings readers, in this tutorial, we will explore the form validations in the javascript language. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The JavaScript scripting language includes: ...

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JavaScript round() Example

Greetings readers, in this tutorial, we will explore the round() method in the javascript language. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The JavaScript scripting language includes: ...

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Python SQLite3 Tutorial (Database Programming)

In this tutorial, we will work with SQLite3 database programmatically using Python. SQLite in general, is a server-less database that can be used within almost all programming languages including Python. Server-less means there is no need to install a separate server to work with SQLite so you can connect directly with the database. SQLite is a lightweight database that can ...

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Kivy Tutorial – Build Desktop GUI Apps Using Python

In previous tutorials, you saw how to build GUI applications using Tkinter and PyQt5, in this tutorial, we will continue building desktop GUI applications but this time using Kivy. Kivy is an open source Python library which is used to create applications on Windows, Linux, MacOS, Android and iOS. You will learn how to play with the Kivy buttons, labels, ...

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JavaScript Quicksort Example

Greetings readers, in this tutorial, we will sort the elements using a quicksort algorithm in the javascript language. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The JavaScript ...

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Pros and Cons of Xamarin vs Native Mobile Development

The web has drastically undergone a major transformation over the past couple of years. Thanks to the rapid technological advancement, the web has now become capable enough to effortlessly connect users and enable the exchange of data and ideas. Unfortunately, it is not enough. The truth is that when it comes to getting the most out of a computing device, ...

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JavaScript Number toString() Example

Greetings readers, in this tutorial, we will understand the number toString() method in the JavaScript language. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The JavaScript scripting language ...

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