Asynchronous programming refers to the occurrence of events that are independent of the main program flow and ways to deal with such events. In this article we are going to look into new ways of processing data asynchronously using CompletableFuture class. CompletableFuture implements Future and CompletionStage classes. public class CompletableFuture<T> extends Object implements Future<T>, CompletionStage<T>…
Lambda expressions were introduced in Java 8. A java lambda expression is basically a function which can be created without belonging to any class. In this post we’re going to look what are lambda expressions and how to use it. This is going to be a hands-on article and all the java code in this…
Hey there! Let’s take a look at this blog post about designing cloud-native applications. But before that, a word of caution – designing cloud-native apps ain’t the same as designing on-premises ones. So, whether you’re using Microsoft Azure, Amazon Web Services, Google Cloud Computing, or any other cloud service, the design principles for architecting cloud…
Hey there, let’s talk about single points of failure (SPOFs). They’re like the weak links in a chain, if they fail, the whole system goes down. A highly available or reliable system cannot have a SPOF. But don’t worry, we can remove SPOFs by employing some clever techniques. Here are a few ways to remove…
Hey there, let’s talk about serverless deployment. It’s like having a magic genie who takes care of running your code, so you don’t have to worry about servers! Basically, serverless deployment uses the principle of deployment structure that hides any concept of servers. The infrastructure takes the service’s code and runs it. You are charged…
Let’s talk about the dynamic provision nature of cloud computing. It’s like having a magic wand that can create servers out of thin air! But seriously, it means that we need to think of system resources as temporary because we can launch as many servers as we need and use them for as long as…
Today, we’ll talk about scalability, which is basically a system’s ability to handle more work by adding more resources to it without sacrificing performance. There are two ways to scale an architecture, and they are: Vertical Scaling: Adding or removing resources from a single resource. It usually involves adding CPUs, memory or storage to a…
So, I was curious about how banks design and secure their applications, and stumbled upon a talk from HSBC on how they built their serverless architecture at scale. Check out the architecture: Now, let’s talk about the key design decisions: Small CIDR and large CIDR blocks are in two different VPCs. If we used just…
If you’re looking to centralize security for multiple AWS accounts, then look no further than Megallan Health’s architecture. Sure, there are a few areas that could be improved, but it’s still a great starting point. This architecture was featured on the "This is My Architecture" series from AWS. Check out the following design: Now, let’s…
Alright, let’s give this text a quick polish and sprinkle some sass on it! If you’re like me and you’re obsessed with cloud-based architectures, then you’ve gotta check out the "This is My Architecture" series from AWS. Every week, they feature a new design that’ll make your head spin with excitement. Today, we’re gonna talk…