Stateful & Stateless Microservices in Python

Beginners Guide

"What if building microservices was as simple as running a food court? Each stall does one thing perfectly—pizza, burgers, smoothies—no chaos, just collaboration. Some remember your order (stateful), others don’t (stateless). This book turns distributed systems from a nightmare into a well-oiled machine. Ready to serve up scalable, cloud-ready microservices in Python? Dive in!"

Sudhanshu Jaiswal

Minimum price

$19.00

$29.00

You pay

Author earns

PDF

About

About the Book

Turn Complex Distributed Systems into a Well-Organized Food Court!

Struggling to wrap your head around microservices? Imagine them as a bustling food court: each stall (service) specializes in one thing—pizza, burgers, smoothies—operating independently but working together seamlessly. Some stalls remember your preferences (stateful), while others treat every order as brand new (stateless). This book demystifies microservices by using this intuitive analogy, making distributed systems accessible, practical, and fun.

What You’ll Build:
✅ Stateless Services (like a coffee shop): A Python calculator API that processes requests without memory—scalable, simple, and lightning-fast.
✅ Stateful Services (like a library): A shopping cart system using Redis to remember user sessions across requests.
✅ Docker Containers: Package your services for consistency across any environment.
✅ Google Cloud Platform (GCP) Deployment: Deploy stateless services to Cloud Run and stateful services with Memorystore (Redis), with step-by-step guides for production-ready setups.

Why This Book?

No Prior Experience Needed: Only Python basics and curiosity required.
Hands-On Learning: Build, test, and deploy two complete microservices from scratch.
Real-World Scenarios: Learn when to use stateless vs. stateful designs with examples from Netflix, Uber, and Spotify.
Cloud-Native: Master GCP tools like Cloud Run, Memorystore, and VPC connectors for secure, scalable deployments.
Production-Ready: Covers monitoring, logging, security, and cost optimization for real-world applications.

Who Is This For?

Python developers ready to scale beyond monoliths.
Cloud engineers exploring GCP for microservices.
Beginners who want a practical, analogy-driven introduction to distributed systems.
Anyone who’s ever felt intimidated by microservices and wants a clear, actionable guide.

By the End, You’ll:
✔ Deploy two microservices to Google Cloud.
✔ Understand state management (Redis, sessions, and scalability trade-offs).
✔ Containerize services with Docker and orchestrate them with Docker Compose.
✔ Design service-to-service communication (e.g., an order service that uses both your calculator and cart).
✔ Apply best practices for logging, security, and cost efficiency.

Stop Fearmongering—Start Building!
Microservices don’t have to be scary. With this book, you’ll build confidence by creating systems that are modular, scalable, and maintainable—just like a well-run food court.

Ready to master microservices? Grab your copy and start coding today!

Share this book

Feedback

Email the Author

Author

About the Author

Sudhanshu Jaiswal

DevOps Visionary | Cloud Architect | Automation Specialist.

I simplify complex infrastructure with Kubernetes, IaC, and robust CI/CD. Proficient in GCP/AWS and a pioneer in n8n workflow automation. Open-Source Advocate and a seasoned engineer dedicated to building resilient, scalable systems.

During my leisure time , I'm writing Hindi poetry or supporting my wife's @deepasoni6261's cooking youtube channel.

Table of Contents

Microservices Mastery - Table of Contents

Microservices Mastery: Stateful & Stateless Services in Python

Introduction: Welcome to the Food Court
Chapter 1: Understanding the Fundamentals
- What Are Microservices, Really?
- Stateless Services: The Coffee Shop
- Stateful Services: The Library
Chapter 2: Building Your First Stateless Service
- Setting Up Your Environment
- The Stateless Service Code
- Understanding the Code
- Testing Locally
Chapter 3: Building a Stateful Service
- The Challenge of State
- Setting Up Redis
- The Stateful Service Code
- Understanding Stateful Design
- Testing the Stateful Service
Chapter 4: When to Use Which?
- The Decision Framework
- Real-World Examples
Chapter 5: Containerizing with Docker
- Dockerfile for Stateless Service
- Dockerfile for Stateful Service
- Building Docker Images
- Testing with Docker Compose
Chapter 6: Deploying to Google Cloud Platform
- Prerequisites
- Setting Up GCP
- Deploying the Stateless Service
- Setting Up Redis (Memorystore)
- Deploying the Stateful Service
Chapter 7: Production Considerations
- Monitoring and Logging
- Health Checks
- Scaling Strategies
- Security Best Practices
- Cost Optimization
Chapter 8: Communication Between Services
- The Order Service
Conclusion: You're Ready
- Key Takeaways
- Next Steps
Quick Reference
- Common Commands
- GCP Deployment
- Redis Operations
- Decision Flowchart

The Leanpub 60 Day 100% Happiness Guarantee

Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.

Now, this is technically risky for us, since you'll have the book or course files either way. But we're so confident in our products and services, and in our authors and readers, that we're happy to offer a full money back guarantee for everything we sell.

You can only find out how good something is by trying it, and because of our 100% money back guarantee there's literally no risk to do so!

So, there's no reason not to click the Add to Cart button, is there?

See full terms...

Earn $8 on a $10 Purchase, and $16 on a $20 Purchase

We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.

(Yes, some authors have already earned much more than that on Leanpub.)

In fact, authors have earned over $15 million writing, publishing and selling on Leanpub.

Learn more about writing on Leanpub

Free Updates. DRM Free.

If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).

Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.

Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.

Learn more about Leanpub's ebook formats and where to read them

Write and Publish on Leanpub

You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!

Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.

Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.

Learn more about writing on Leanpub