Every developer starts with a .env file… But production systems don't.

So how do companies like Netflix, Uber, Amazon, and Stripe securely manage API keys, database credentials, and JWT secrets across hundreds of microservices?

In this video, you'll build a complete HashiCorp Vault + NestJS integration from scratch and learn how production applications securely fetch secrets at runtime.

What You'll Build:
Install HashiCorp Vault using Docker
Run Vault in Development Mode
Store Secrets using the Vault UI
Create a Fresh NX Monorepo
Generate a NestJS Application
Install the Node-Vault Package
Build a Production-Style Vault Service
Fetch Secrets Dynamically on Application Startup
Handle TypeScript Safely
Create an API Endpoint to Read Secrets
Test Everything Live in the Browser

Technologies Used:
NestJS
NX Monorepo
HashiCorp Vault
Docker
Node-Vault
TypeScript
Secrets Management
Microservices

By the end of this tutorial, you'll know how enterprise applications securely manage sensitive configuration without exposing secrets inside the source code.

This video is part of the NestJS Microservices Complete Course 2026 (Hindi/Urdu) by The Techzeen.

Subscribe to The Techzeen and become a Champion in Microservices Architecture, Backend Security, DevOps, and Production-Ready System Design.

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

Source Code:
https://github.com/farzeen-ali/NestJS-HashiCorp-Vault

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

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