Examples
Error Handling

Error Handling Patterns Example

This example demonstrates various error handling patterns in ZoopFlow. Proper error handling is crucial for building robust and resilient workflows.

What You'll Learn

  • How to use try-catch for basic error handling
  • How to implement retry logic for transient failures
  • How to define fallback strategies
  • How to use error handler registries
  • How to propagate and transform errors
  • How to implement transaction-like semantics with rollbacks

Files in this Example

  • basic-error-handling.ts - Shows simple try-catch error handling
  • retry-strategies.ts - Demonstrates retry patterns for transient errors
  • fallback-strategies.ts - Shows how to define fallback logic
  • error-handler-registry.ts - Example of using an error handler registry
  • transaction-rollback.ts - Demonstrates transaction-like semantics
  • run-example.ts - Entry point to run the example

Error Handling Concepts

In ZoopFlow, error handling strategies include:

  • Try-catch blocks for handling expected errors
  • Automatic retry with configurable backoff for transient failures
  • Fallback logic for graceful degradation
  • Error handler registries for centralized error management
  • Transaction-like patterns with rollback for maintaining consistency

How to Run

# From the project root
npm install
npx ts-node docs/new-structure/examples/error-handling/run-example.ts

Expected Output

The example will:

  1. Demonstrate basic error handling with try-catch blocks
  2. Show how to implement retry logic with exponential backoff
  3. Implement fallback mechanisms when primary operations fail
  4. Use an error handler registry for specialized error handling
  5. Demonstrate transaction-like semantics with rollback functionality

Output will show error handling strategies and how they handle different types of errors.

Next Steps

  • Implement your own custom error handling logic
  • Explore integration with logging and monitoring systems
  • Learn about state management in the State Management Example
  • See how signals can be used for error recovery in the Signal Handling Example
Basic StepFlow Definition