Kcode

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170 videos

Hey everyone! :) My name is Kos. I am a webdev with over 7 years of experience, primarily working with JS. Join me to watch me learn new languages live, work...

Latest Videos

Prometheus & Grafana. Complete Monitoring Setup using Golang.

How to do CPU Profiling in Go Intro to PPROF (Part 2).

How to do Memory Profiling in Go Intro to PPROF (Part 1).

How To Improve Strings Performance in Go. Interesting Example with Strings Concat.

How to do Benchmarking in Go to Improve Performance. Intro to testing.B.

Send Table Changes from DB to Kafka Automatically. Change Data Captrure(CDC) using Debezium.

Go Kafka Inbox Pattern. Preventing Duplicate Event Processing. Idempotent Consumer.

Go Concurrency. How to Fan-Out Fan-In with WaitGroups & Channels. Worker Pool Pattern.

Go Kafka Transactional Outbox Pattern in Microservices

Go Kafka What to do if API Scales How to Rebalance Kafka

Go Kafka How To Manually Commit Offsets The Right Way. Database Idempotency.

Go Kafka Building Producer & Consumer with Go (Part 1)

Golang Concurrency. Learn Mutexes with Data Race Tests by building Rate Limiter.

Golang Concurrency. Learn How To Make Concurrency Safe Channels by Building Request Throttler.

Mastering Channels & Race Conditions - Go WebSocket Rooms Golang Concurrency #2

Hands-on Channels, Concurrency & Race Conditions By Building WebSocket Server Golang Concurrency#1

How I choose what to learn Why I chose Go over Rust JavaScript developer perspective.

NestJS Clean Architecture Dependency Inversion & Module Composition. Why And How To Apply.

SSE vs WebSocket Performance Test With Compression. Is The Trade Off Worth It

SSE vs WebSocket Performance Surprising Results Using 100 bytes to 50KB Message Tests

How Server-Sent Events + HTTP1.1 Can Break Your Real-Time Features

Intro to Server-Sent Events (SSE) - NestJS Tutorial 2026

Intro to WebSockets in NestJS Real-Time Chat, Rooms, Broadcasting & Direct Messaging

NestJS Kafka quick start docker-compose setup + Kafdrop UI

Liskov Substitution Principle - Real world example with Strategy pattern SOLID

Dependency Inversion Principle - Real world example with Adapter and Factory patterns SOLID

Open Closed Principle - Real world example with Factory and Strategy patterns SOLID

Single Responsibility Principle in NestJS by example in 10min SOLID

NodejsNestjs Profiling with Grafana & Prometheus - Complete Setup Tutorial

Neo4j Correlation by example. Stackoverflow DB. part#7.