Azure Durable Functions with .NET 10: Orchestrate Reliable Long-Running Serverless Workflows and Stateful Business Processes with C#

By Lucian Verne

Long-running cloud workflows can look intimidating-especially when retries, failures, replay, external events, and human approvals enter the picture. This book makes them understandable, practical, and manageable.

Azure Durable Functions with .NET 10 is a step-by-step guide to building reliable, stateful, long-running serverless workflows with C# and the modern .NET isolated worker model. You do not need previous experience with Azure Durable Functions, workflow engines, deterministic replay, sagas, or distributed orchestration. Basic familiarity with C# is helpful, and every Durable Functions concept is introduced progressively before it is used in larger implementations.

Rather than overwhelming you with isolated examples, the book guides you through FulfilmentFlow, a realistic order-fulfilment and exception-management application that grows chapter by chapter. You will learn by building, testing, troubleshooting, and improving a complete workflow system.

Mistakes are treated as part of the learning process. Each successful orchestration, recovered failure, correctly handled timeout, and completed workflow becomes another practical win that strengthens your confidence.

Key Features

Step-by-step, implementation-focused explanations

Practical C# and .NET 10 examples using Azure Functions

One cumulative real-world project instead of disconnected demos

Clear coverage of orchestrators, activities, replay, and determinism

Durable timers, external events, human approvals, and workflow state

Production-focused reliability, security, testing, observability, and deployment

Verification checklists, review questions, exercises, and troubleshooting guidance

What You Will Learn

Build long-running and stateful serverless workflows

Design orchestrators and activity functions correctly

Understand durable execution, event history, replay, and deterministic code

Create sequential, parallel, fan-out/fan-in, and sub-orchestration workflows

Use durable timers, external events, reminders, approvals, and escalation

Manage workflow instances and Durable Entities

Apply retries, idempotency, compensation, and saga-style recovery

Control concurrency, scaling, payload size, security, and task-hub isolation

Test, monitor, trace, troubleshoot, version, and deploy production workflows

Use Durable Task Scheduler, managed identity, Bicep, and CI/CD effectively

Who This Book Is For

This book is ideal for C# and .NET developers who want to learn Azure Durable Functions from the ground up and progress toward production-ready workflow engineering. It is especially useful for developers building business processes that must survive delays, failures, restarts, retries, external callbacks, and human decisions. Prior Durable Functions experience is not required.

Table of Contents

Durable Execution with Azure Functions and .NET 10

Orchestrators, Activities, Replay, and Determinism

Building Reliable Sequential Workflows

Parallel Workflows and Orchestration Decomposition

Durable Waiting, External Events, and Human Interaction

Workflow State and Instance Lifecycle Management

Failure Handling, Retries, Idempotency, and Compensation

Scaling, Performance, Data, and Security

Testing, Observability, and Troubleshooting

Workflow Versioning, Deployment, and Production Operations

If you are ready to move from fragile background processes to reliable, production-ready workflow orchestration, start building with Azure Durable Functions, C#, and .NET 10 today.

• Format: Paperback
• Language: English
• ISBN: B0HHV7QBMY
• ISBN13: 9798172002243
• Release Date: September 2026
• Publisher: Independently published
• Length: 270 Pages
• Weight: 1.06 lbs.
• Dimensions: 10.0" x 0.6" x 7.0"