Error Handling Patterns You Can Follow in Your Applications with Apache Kafka Creating a “retry-topic” is the first thing you should do to skip errors (which can be resolved when a condition is met or via an external intervention) without halting the whole process and keeping related data in a…

Details About OAuth 2.0 and How It Works Stands for “Open Authorization”. Is an authorization protocol and NOT an authentication protocol. It replaced OAuth 1.0 in 2012 and is now the de facto industry standard for online authorization. Designed to allow a website or application to access resources hosted by…

Details About JWT and How It Works Definition It is an open standard (RFC 7519) — be aware that all JWTs are tokens, but not all tokens are JWTs. It is a compact and self-contained way for securely transmitting information between parties as a JSON object. Since JSON is less verbose…

How to Add Health Check to Docker Containers for Spring Boot Projects For useful Docker commands, you can visit: Useful Docker Commands Useful Docker Commands Gathered in One Placesenoritadeveloper.medium.com You may have noticed “STATUS” column when you list your local containers:

What is GraalVM?, Why GraalVM?, What is “GraalVM Native Image”? Where does the name “GraalVM” come from? The word “Graal” comes from old French for “Grail.” The “VM” in “GraalVM” comes from the fact that it runs inside the JVM. Current Situation When you first run your application, JVM interprets code and collects “profiling information” (about which code branches…

Detect When the Browser is Back Online and Multicast Events In my previous posts, I had mentioned about SSE implementation to send/receive user events in an e-mail service. How to Create a Server-Sent Events API with Spring Webflux and Kafka Create an API with text/event-stream Response Typesenoritadeveloper.medium.com How to Call Event-Stream APIs in Angular Listen to Server-Sent Events (SSE) in Your Angular Projectsenoritadeveloper.medium.com

Spring Dependency Injection Methods, Their Advantages & Disadvantages “Dependency Injection” helps in implementing “Inversion of Control (IoC)”. The responsibility of object creation and injecting the dependencies is given to the framework (i.e. Spring). We can implement “Dependency Injection” with: - 1️⃣ Field Injection - 2️⃣ Setter Injection - 3️⃣ Constructor…

Angular Update Guide, NVM, Madge, etc. Recently, we have upgraded our Angular version from 9 to 13 at work. There happened to be some problems, eventually and here I will describe how we solved them. Angular Update Guide https://update.angular.io/ is a very helpful site that describes the things to do for upgrades between…

Steps to Create OpenAPI 3.0 API Documentation with Swagger in Spring Boot Firstly, you need to add “springdoc” dependency to your pom.xml file (My spring boot version is 2.6.3 and spring-doc-openapi.version is 1.6.5): <dependency> <groupId>org.springdoc</groupId> <artifactId>springdoc-openapi-ui</artifactId> <version>${spring-doc-openapi.version}</version> </dependency> I declared a context path in application.properties (please beware that api doc…