When working on applications, you want to focus on your business logic rather than spending your time on the mechanics of how to persist your data. If you are working in AWS, there is a good chance you are already […]
One of the biggest pain points using injection in Java is that if you missed something, you will find it during runtime. Many code commits were made where everything passed the code review, and looked legit, just to find out […]
Recently, I have investigated a defect that is interesting to share. As part of our operations, we need to be able to run tools, which will invoke APIs on different AWS services. For example, one common tool is to run […]
The builder pattern is nice and useful, and using Lombok @Builder annotation instead of implementing it each time can save a lot of time. However, there is one problem with this. You can’t really define a required field. For example, […]
Occasionally you want to store information in a database with keeping versioning, so you will be able to retrieve previous versions of the record. In this example, we will use AWS DynamoDB and take advantage of some of its features. […]
After more than 5 years programming in C++, recently I’ve started my first steps programming in Java. There are many differences and I’ll try to share some tips that will make your lives better š First one is Project Lombok. […]
Amazon Simple Queue Service (Amazon SQS) is a scalable and fully managed message queuing service that allows users to transmit any amount of data through the web without administrative responsibility. Recently, I tried to evaluate whenever the SQS service will […]
In the previous blog post, I’ve described how to build a simple SMS notification system using DynamoDB, SNS and AWS Lambda. In this post, I’ll show how to change it in order to allow each user to choose whenever he […]
As many engineers in the industry, we have on-call duty. The on-call duty is defined at the beginning of each month and the list of the on-call engineers for each date can be found in an excel sheet. Well, this […]
Recently I found a funny bug in our code and I wanted to share some insights on it so you won’t do the same mistakes. Let’s assume we have a function that produces a lot of output and it can […]