Serxan Hamzayev – Medium

Serxan Hamzayev

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5 Spring Framework Annotations That Confused Me (And Probably You Too)

When I first started working with Spring Boot, I thought I understood the annotations.

3d ago

5 Spring Framework Annotations That Confused Me (And Probably You Too)

3d ago

Published in

AWS in Plain English

How to Use S3 Presigned URLs for Secure File Uploads in Lambda

A few months ago, I was working on a small internal tool where users needed to upload files, mostly PDFs and images. We didn’t want to…

3d ago

How to Use S3 Presigned URLs for Secure File Uploads in Lambda

3d ago

Published in

Javarevisited

AWS S3 + Lambda: How We Automated File Processing and Cut Manual Work by 90%

A Real Problem We Had

4d ago

AWS S3 + Lambda: How We Automated File Processing and Cut Manual Work by 90%

4d ago

Published in

Javarevisited

We Built a Static Website on AWS S3 for $0.01/Month — Here’s the Exact Setup

It started as a weekend idea I wanted to build a simple portfolio website. No backend. No database. Just a few pages — fast, clean, and…

5d ago

We Built a Static Website on AWS S3 for $0.01/Month — Here’s the Exact Setup

5d ago

Published in

Javarevisited

S3 Is Just Object Storage, Right? Here’s Why It’s the Backbone of Modern Architectures

“It’s just a file bucket. Nothing special.” That’s what I thought when I first started using Amazon S3. Upload a file, get a URL, done…

Jul 4

S3 Is Just Object Storage, Right? Here’s Why It’s the Backbone of Modern Architectures

Jul 4

Published in

Javarevisited

Why @ControllerAdvice Didn’t Catch My Exception — And How I Fixed It

I thought I did everything right. I created a nice @ControllerAdvice class, added an@ExceptionHandler, and waited for it to catch all the…

Jul 3

Why @ControllerAdvice Didn’t Catch My Exception — And How I Fixed It

Jul 3

Published in

Javarevisited

We Thought Swagger Was Safe — 7 Traps That Nearly Exposed Our API

“We only use Swagger for development — it’s not dangerous.” That’s what we believed… until we discovered that Swagger was quietly…

Jul 2

We Thought Swagger Was Safe — 7 Traps That Nearly Exposed Our API

Jul 2

Published in

Javarevisited

Spring Boot @Profile Didn’t Work as Expected — Here’s the Hidden Trap

“Why is this bean even loaded?” That was my reaction one morning when I saw some logs in my local Spring Boot app. I was using @Profile…

Jul 1

Jul 1

Published in

Javarevisited

My Flyway Migration Failed Mid-Deploy — This Is How I Recovered Without Data Loss

It was supposed to be a simple deploy. Just one more Flyway migration. A few small database changes. I’ve done it many times before.

Jul 1

My Flyway Migration Failed Mid-Deploy — This Is How I Recovered Without Data Loss

Jul 1

Published in

Javarevisited

You Enabled CORS in Spring Boot — But It Still Doesn’t Work? Here’s the Real Fix

A few months ago, I was working on a small frontend and backend project. I built the backend using Spring Boot and the frontend with React…

Jun 28

You Enabled CORS in Spring Boot — But It Still Doesn’t Work? Here’s the Real Fix

Jun 28

Serxan Hamzayev

Serxan Hamzayev

Explore backend tech with me on Medium. Insights and updates. Linkedin : https://www.linkedin.com/in/sarkhan-hamzayev-618b86148/

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