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Apache Kafka Fundamentals
Nowadays, we have plenty of unique architectural solutions. But all of them have one thing in common – every single decision should be done after a solid understanding of the business case as well...
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How to Build Hypermedia API with Spring HATEOAS
Have you ever considered the quality of your REST API? Do you know that there are several levels of REST API? Have you ever heard the term HATEOAS? Or maybe you wonder how to implement it in Java? ...
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Practical Tips to Testing React Apps with Selenium
If you ever had to write some automation scripts for an app with the frontend part done in React and you used Selenium Webdriver to get it to work, you’ve probably noticed that those two do not al...
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How to Build Real-Time Notification Service Using Server-Sent Events (SSE)
Most of the communication on the Internet comes directly from the clients to the servers. The client usually sends a request, and the server responds to that request. It is known as a client-server...
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How to Run Selenium BDD Tests in Parallel with AWS Lambda – Lambda Handlers
In our first article about Selenium BDD Tests in Parallel with AWS Lambda, we introduce parallelization in the Cloud and give you some insights into automating testing to accelerate your software de...
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Introduction to Kubernetes Security: Container Security
Focusing on Kubernetes security, we have to go through container security and their runtimes. All in all, clusters without containers running does not make much sense. Hardening workloads often is m...
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How to Run Selenium BDD Tests in Parallel with AWS Lambda
Have you ever felt annoyed because of the long waiting time for receiving test results? Maybe after a few hours, you’ve figured out that there had been a network connection issue in the middle of...
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Whose Cluster Is It Anyway?
While researching how enterprises adopt Kubernetes, we can outline a common scenario; implementing a Kubernetes cluster in a company often starts as a proof of concept. Either developers decide they...
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In-App Purchases in iOS Apps – a Tester’s Perspective
Year after year, Apple’s new releases of mobile devices gain a decent amount of traction in tech media coverage and keep attracting customers to obtain their quite pricey products. Promises of sup...
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Common Kubernetes Failures at Scale
Currently, Vanilla Kubernetes supports 5000 nodes in a single cluster. It does not mean that we can just deploy 5000 workers without consequences - some problems and edge scenarios happen only in th...
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Kubernetes Cluster Management: Size and Resources
While managing Kubernetes clusters, we can face some demanding challenges. This article helps you manage your cluster resources properly, especially in an autoscaling environment. If you...
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Variable Key Names for Codable Objects: How to Make Swift Codable Protocol Even More Useful?
It’s hard to imagine modern Swift iOS application that doesn’t work with multiple data sources like servers, local cache DB, etc, or doesn’t parse/convert data between different formats. While...
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The Path Towards Enterprise Level AWS Infrastructure – Load Balancing and Application Deployment
Let’s finish up the process of building our AWS infrastructure and discover the last crucial elements of the AWS Cloud needed for our highly available, secure and fault-tolerant cloud system....
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The Path Towards Enterprise Level AWS Infrastructure – EC2, AMI, Bastion Host, RDS
Let’s pick up the thread of our journey into the AWS Cloud, and keep discovering the intrinsics of the cloud computing universe while building a highly available, secure and fault-tolerant cloud s...
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The Path Towards Enterprise Level AWS Infrastructure – Architecture Scaffolding
This article is the first one of the mini-series which will walk you through the process of creating an enterprise-level AWS infrastructure. By the end of this series, we will have created an infras...
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