Workers (Serverless Compute)

Outline

1. What Workers Are

• What Cloudflare Workers do
• Advantages of edge compute
• Worker capabilities and limits

2. How Workers Run

• V8 isolate runtime
• Global edge deployment
• Request handling flow

3. Creating Workers

• Dashboard

  • Create a Worker in the UI
  • Online editor
  • Quick deploy

• Wrangler CLI

  • Install Wrangler
  • Initialize a project
  • Local development

4. Developing Workers

• Basics

  • JavaScript/TypeScript support
  • Event handlers
  • Request/Response APIs

• Common tasks

  • Modify requests/responses
  • Add headers
  • URL rewrites
  • Request forwarding

5. Practical Uses

• A/B testing

  • Split traffic
  • Implement test logic

• Routing

  • Smart routing
  • Geo routing

• API aggregation

  • Aggregate multiple APIs
  • Transform data

• Edge authentication

  • JWT validation
  • Access control

6. Advanced Features

• Workers KV

  • Key-value storage
  • Read/write operations
  • Use cases

• Durable Objects

  • State management
  • Real-time apps

• Streams

  • Streaming
  • Large file handling

• WebSockets

  • WebSocket support
  • Realtime communication

7. Deploy and Operate

• Deploy Workers
• Versioning
• Environment variables
• Logging and debugging

8. Best Practices

• Performance tuning
• Error handling
• Code organization
• Testing strategies

9. FAQs

• Execution time limits
• Memory limits
• Debugging tips
• Performance tuning

10. Summary

• Core advantages
• Where to use Workers
• Development tips