What happens when your microservice’s IP changes… and everything breaks?

Hardcoding URLs in microservices is a disaster waiting to happen.

In this video, you’ll learn how to solve this using Service Discovery with Consul in NestJS — and we’ll build everything from scratch to production-style implementation.

What We Built in This Video:
Set up Docker on Linux (official approach)
Run Consul Server inside Docker
Create Nx Monorepo with multiple services
Build Payment Service & Checkout Service
Register Payment Service in Consul
Discover Payment Service from Checkout Service
Call service dynamically (no hardcoded URLs)
Verify everything using Consul Dashboard UI

In This Video, You’ll Learn:
Real implementation of Service Discovery
How Consul works in microservices
Dynamic service registration
Service-to-service communication using discovery
Health checks & service status monitoring
Industry-level microservices architecture

Real-World Flow:
Checkout Service needs Payment Service
Instead of hardcoding URL
It asks Consul: “Where is Payment Service?”
Consul responds with live service address
Request is completed successfully

This is how real scalable systems work.

Why This Video is IMPORTANT
Without Service Discovery:
Services break when IP changes
Scaling becomes difficult
Systems become fragile

With Consul:
Dynamic communication
Scalable architecture
Production-ready system

Who Should Watch:
* Backend Developers
* NestJS Developers
* Microservices Learners
* DevOps Engineers
* System Design Interview Preparation

Important:
If you skip this concept…
you’re not learning real microservices architecture.

This video is part of Nest JS Microservices Full Course 2026 (Hindi/Urdu) - The Techzeen

Subscribe The Techzeen and become a Champion in Microservices Architecture, building high-performance, flexible & scalable systems.

The Techzeen Website:
https://www.thetechzeen.com/

Source Code:
https://github.com/farzeen-ali/gRPC-Proto3-with-NestJS-Microservices

Docker Installation on Ubuntu:
https://github.com/farzeen-ali/Docker-Installation-on-Ubuntu

Nest JS Microservices Architecture Lectures (GitHub Notes):
https://github.com/farzeen-ali/Nest-JS-Microservices-Architecture

Nest JS Microservices Architecture Full Course 2026:
https://www.youtube.com/playlist?list=PL5OhSdfH4uDuhmyVVCziEDINTg8BRgRS8

DevOps Tutorial 2026:
https://www.youtube.com/playlist?list=PL5OhSdfH4uDsyUM02ZHl2mOYBpihCYsml

Nest JS Full Backend Mastery Course 2026:
https://www.youtube.com/playlist?list=PL5OhSdfH4uDt6iG-qze_Q3qgik6VKHeRU

#ServiceDiscovery #Consul #NestJS #Microservices #BackendDevelopment #SystemDesign #DistributedSystems #DevOps #Docker #Kubernetes #ScalableSystems #SoftwareArchitecture #Programming #TheTechzeen