📚 Sample Catalog

May 27, 2026 · View on GitHub

Explore a comprehensive collection of samples for building durable, fault-tolerant workflows with Azure Durable Task Scheduler. Whether you're just getting started or building advanced AI agents, there's a sample for you.

Prerequisites: Most samples require Docker to run the Durable Task Scheduler emulator locally. See each sample's README for specific setup instructions.

🚀 Start Here

New to Durable Task Scheduler? Start with the Function Chaining sample in your preferred language:

Language	Sample	Description
.NET	Function Chaining	Sequential workflow with data transformation
Python	Function Chaining	Sequential workflow basics
Java	Function Chaining	Sequential workflow basics
JavaScript	Function Chaining	Sequential workflow basics

📋 Samples by Pattern

A quick-reference matrix showing which patterns are available in each language and framework.

Durable Task SDKs

Pattern	.NET	Python	Java	JavaScript
Function Chaining	✅	✅	✅	✅
Fan-out/Fan-in	✅	✅	✅	✅
Human Interaction	✅	✅	✅
Async HTTP API		✅	✅
Monitoring	✅	✅	✅
Sub-orchestrations	✅	✅	✅
Eternal Orchestrations	✅	✅	✅
Saga Pattern		✅
Durable Entities	✅	✅
Orchestration Versioning	✅	✅
ASP.NET Web API	✅
Scheduled Tasks	✅
.NET Aspire Integration	✅
AI Agent Chaining	✅
AI Research Agent		✅
Large Payload	✅

Durable Functions

Pattern	.NET	Python	Java	JavaScript	PowerShell
Hello Cities (Quickstart)	✅		✅	✅	✅
Fan-out/Fan-in		✅	✅	✅	✅
Order Processor	✅
Saga Pattern	✅
Distributed Tracing	✅
Large Payload	✅
Large Payload Fan-out/Fan-in	✅
PDF Summarizer	✅	✅
AI Travel Planner	✅
Aspire Integration	✅

Durable Task SDKs

.NET

Sample	Pattern	Description
Function Chaining	Function Chaining	Sequential workflow with data transformation
Fan-out/Fan-in	Fan-out/Fan-in	Parallel execution and result aggregation
Human Interaction	Human Interaction	Approval workflow with external events and timeouts
Durable Entities	Durable Entities	Funds transfer using stateful distributed objects
Orchestration Versioning	Versioning	Safe evolution of running orchestrations
ASP.NET Web API	Web API	Web API running orchestrations
Scheduled Tasks	Scheduled Tasks	Recurring background tasks with scheduled orchestrations
.NET Aspire Integration	Aspire	Local dev orchestration with Aspire
AI Agent Chaining	AI Agents	Multi-agent workflow with research, content, and image agents
Monitoring	Monitoring	Periodic polling pattern with ContinueAsNew
Sub-Orchestrations	Sub-orchestrations	Parent/child orchestration composition for order processing
Eternal Orchestrations	Eternal Orchestrations	Indefinitely running orchestration with ContinueAsNew
OpenTelemetry Tracing	Observability	Distributed tracing with OpenTelemetry and Jaeger
Large Payload	Large Payload	Blob-backed payload externalization for orchestration inputs and outputs larger than 1 MB

Python

Sample	Pattern	Description
Function Chaining	Function Chaining	Sequential workflow basics
Fan-out/Fan-in	Fan-out/Fan-in	Parallel execution and result aggregation
Human Interaction	Human Interaction	Approval workflow with external events and timeouts
Async HTTP API	Async HTTP API	FastAPI with long-running operations
Monitoring	Monitoring	Periodic polling pattern
Sub-orchestrations	Sub-orchestrations	Nested orchestration composition
Eternal Orchestrations	Eternal Orchestrations	Continue-as-new pattern
Durable Entities	Durable Entities	Counter entity
Orchestration Versioning	Versioning	Safe evolution of running orchestrations
AI Research Agent	AI Agents	Autonomous research agent with arXiv + LLM
Saga Pattern	Saga	Travel booking with compensating transactions
OpenTelemetry Tracing	Observability	Distributed tracing with OpenTelemetry and Jaeger

Java

Sample	Pattern	Description
Function Chaining	Function Chaining	Sequential workflow basics
Fan-out/Fan-in	Fan-out/Fan-in	Parallel execution and result aggregation
Human Interaction	Human Interaction	Approval workflow with external events and timeouts
Async HTTP API	Async HTTP API	Long-running operations with HTTP polling
Monitoring	Monitoring	Periodic polling pattern
Sub-orchestrations	Sub-orchestrations	Nested orchestration composition
Eternal Orchestrations	Eternal Orchestrations	Continue-as-new pattern

JavaScript

Sample	Pattern	Description
Function Chaining	Function Chaining	Sequential workflow basics with JavaScript SDK
Fan-out/Fan-in	Fan-out/Fan-in	Parallel execution and result aggregation with JavaScript SDK

Durable Functions

.NET

Sample	Pattern	Description
Hello Cities	Quickstart	Basic orchestration with 3 activities
Order Processor	Order Workflow	End-to-end order processing workflow
Saga Pattern	Saga	Compensating transactions for distributed operations
Aspire Integration	Aspire	Azure Functions + DTS with Aspire
Large Payload	Large Payload	Single round-trip orchestration that externalizes payloads larger than 1 MB to blob storage
Large Payload Fan-out/Fan-in	Large Payload	Parallel orchestration that externalizes payloads larger than 1 MB for each activity result
PDF Summarizer	AI Pipeline	AI-powered document processing pipeline
AI Travel Planner	AI Agents	Multi-agent travel planning orchestration
Distributed Tracing	Observability	Distributed tracing with Application Insights and Jaeger

Python

Sample	Pattern	Description
PDF Summarizer	AI Pipeline	AI-powered PDF summarization
Fan-out/Fan-in	Fan-out/Fan-in	Parallel processing with result aggregation

Java

Sample	Pattern	Description
Hello Cities	Function Chaining, Fan-out/Fan-in	Java quickstart with sequential and parallel orchestration patterns

JavaScript

Sample	Pattern	Description
Hello Cities	Function Chaining, Fan-out/Fan-in	JavaScript quickstart with sequential and parallel orchestration patterns

PowerShell

Sample	Pattern	Description
Hello Cities	Function Chaining, Fan-out/Fan-in	PowerShell quickstart with sequential and parallel orchestration patterns

Durable Extension for Microsoft Agent Framework

The Durable Task extension for Microsoft Agent Framework lets you make any Microsoft Agent Framework agent durable with persistent sessions, built-in API endpoints, and distributed scaling — without changes to your agent logic. It also supports graph-based workflows via WorkflowBuilder.

Setup: These samples live in the microsoft/agent-framework repo and are included here via a Git submodule. Run git submodule update --init external/agent-framework after cloning.

📂 Full details and sample index →

Durable Agents (.NET)

Sample	Hosting	Description
Single Agent	Azure Functions	Basic durable agent with persistent sessions
Orchestration Chaining	Azure Functions	Multi-agent sequential orchestration
Orchestration Concurrency	Azure Functions	Parallel agent execution (fan-out/fan-in)
Orchestration Conditionals	Azure Functions	Conditional routing between agents
Human-in-the-Loop	Azure Functions	Agent pauses for human approval
Reliable Streaming	Azure Functions	Real-time token streaming with durability
Single Agent	Console App	Same pattern without Azure Functions

Durable MAF Workflows (.NET)

Sample	Hosting	Description
Sequential	Azure Functions	Order cancellation pipeline: look up → cancel → notify
Concurrent	Azure Functions	Fan-out to multiple expert agents, fan-in to aggregate
Human-in-the-Loop	Azure Functions	Expense reimbursement with multi-stage approvals
Sequential	Console App	Sequential executor pipeline
Conditional Edges	Console App	Runtime routing based on conditions

Durable Agents (Python)

Sample	Hosting	Description
Single Agent	Azure Functions	Basic durable agent with persistent sessions
Multi-Agent Orchestration	Azure Functions	Multiple agents in a durable orchestration
Tool Calling	Azure Functions	Agent with function tools
Single Agent	Durable Task SDK	Agent hosted with DT SDK directly

Scenarios

Sample	Description
Autoscaling in ACA	KEDA-based dynamic worker scaling in Azure Container Apps

Contributing a Sample

Want to add your own sample? See the Contributing Guide for guidelines on sample structure, documentation, and submission.