Logging is of great importance for web applications, both while in your local environment and for production applications. Logs can be analyzed and reveal issues and the can be used to debug…
Testing is a huge field and takes a significant amount of time to master. There are several types of tests, like unit, functional, integration, end-to-end (e2e) test and each of those types has its…
Dependency injection is a technique that “injects”/passes dependencies between objects in a way that leads to code that is easier to test and maintain.
Queues are a really useful data structure that are being frequently used both in application code and are also utilized by libraries. In this post, we’ll see what they are, how they work and some…
Memoization is loosely defined as an optimization technique that is usually applied on functions that are quite expensive to run.
SOLID is a set of principles that lead to cleaner, more maintenable and extensible code. The first principle is the Single Responsibility Principle or SRP.
There are several cases where we need to generate a unique identifier in our applications. One way to do it is to roll your own implementation, usually randomly picking characters in a recursive way.
Recently, I had to parse an SQL-like statement coming in as a query parameter for an python API endpoint. This mini query language had to support AND, OR and NOT operations and allow nested…
In the past few years, functional programming’s popularity has increased and new languages (like elixir or scala) that embrace it have been created. But what exactly is functional programming?
There are several occasions where we need to encrypt some data, whether they are fields in a database or files. In some cases, encryption is needed in order to secure secrets that are stored in a…