durable-functions-dotnet

What problem does it solve?

Durable Functions enable developers to implement long-running, reliable workflows in Azure Functions by providing orchestration primitives, state management, and built-in failure handling via the Durable Task Scheduler backend.

Core Features & Use Cases

• Orchestrations and Function Chaining: compose complex workflows from simple functions with deterministic execution and replay.
• Fan-out/Fan-in, Sub-orchestrations, and Entities: scale out work, coordinate sub-workflows, and manage durable state across steps.
• Async HTTP APIs and Monitors: build long-running HTTP endpoints and periodic status checks for resilient APIs and processes.
• Real-world use cases include order processing pipelines, data ingestion and processing, human-in-the-loop approvals, and reliability-critical business workflows.

Quick Start

Create a new Azure Functions project with a .NET isolated worker, add the Durable Task extensions, wire up host.json for DTS, and implement a simple sample orchestration to verify end-to-end operation.