10. Conditional Requests


This chapter how to implement conditional requests in servers and clients for var- ious HTTP methods, and shows how conditional requests can help caching, op- timistic concurrency control, and idempotency.

  1. How to Generate Last-Modified and ETag Headers
  2. How to Implement Conditional GET Requests in Servers
  3. How to Submit Conditional GET and HEAD Requests from Clients
  4. How to Implement Conditional PUT Requests in Servers
  5. How to Implement Conditional DELETE Requests in Servers
  6. How to Make Unconditional GET Requests from Clients
  7. How to Submit Conditional PUT and DELETE Requests from Clients
  8. How to Make POST Requests Conditional
  9. How to Generate One-time URIs

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