Serializing and deserializing JSON data — Hi people! JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write and for machines to parse and generate. It is commonly used for transmitting data between a server and a web application as an alternative to XML, and has many business…

A deep dive into how dependency injection works in .NET — Hi humans! Dependency injection is a great mechanism to manage your services construction when needed. It removes the need for you manually having to create an instance with new Service(...) …

Using the yield return for returning one item at a time — Hi, Earthlings! Today I want to show you both ways of manipulating and returning lists from C# methods. First I’ll demonstrate what is the “conventional” way of doing that by creating an empty list and filling it with the desired information for then returning it. The second way is by…

Let’s build a small image uploading application with .NET 6, MongoDB, Firebase, and Angular — Hi people! One of the many questions I see in videos, tutorials, and courses, is from people asking how to work with files. Today I want to show you how easy it is to handle files with .NET by creating a simple web with a front-end in Angular, MongoDB for…

A quick guide on how to properly instantiate and use HttpClient in .NET — Hey people! HTTP calls are present in almost every application that needs to communicate with other systems. It is the most popular method of communication. In .NET we have HttpClient, the framework’s built-in implementation to make such calls. One way of using it is by instantiating a new object with:

Let’s set up a simple microservice architecture by learning how to work with MassTransit with RabbitMQ or AWS SQS — Hey people! When designing an architecture for a very decoupled application, one of the components that makes it easier for handling it is message queues. One way people handle one application notifying another about something is through HTTP messages. But a few problems arise if you do not depend on…

Returning only the necessary data to your API clients — Hi, multicellular organisms! Today I want to talk about a very important topic regarding API designs. To not expose your domain models or your entities in your API endpoints. Note that I’ll show examples in .NET but this is valid for any programming language. Very often I see an endpoint…

Give your clients the ability to cancel their requests instead of always completing it — Hey, people! The ability to stop processing a request if your client decides that it is not necessary anymore is very important. Some scenario that might happen is if the client sends a request through a web browser but then reloads or close this page, most of the time you…

Leveraging cache to make your API respond fast for data that doesn’t change so often — Hey, people! Performance is a constant concern when you are developing a new API. One of the performance key metrics is how long your requests take to respond and how many requests your API can handle. There are many ways of improving your API performance. One of them is preventing…