Agent Wranglers

WEB-255Recommended

Resolve retired IDs everywhere

Every place that accepts an ID follows the map of moved IDs. A lookup of several IDs returns what it found, what moved and what it did not find.

How to do it

Apply the same moved-ID map in redirects, JSON filters, ask endpoints and agent tools. An agent that cached an old ID then still reaches the item. Return moved and not_found lists instead of failing the whole request, and keep the order asked for. Keep the IDs themselves stable, as Give every rule a short ID that never changes says.

Examples

HTTP example

GET /api/items?ids=GDE-4,GDE-2,GDE-99 HTTP/1.1
Host: example.com

HTTP/1.1 200 OK
Content-Type: application/json

{"items":[{"id":"GDE-4"},{"id":"GDE-12"}],"moved":{"GDE-2":"GDE-12"},"not_found":["GDE-99"]}

How to check

A request for one current, one retired and one unknown ID gets status 200. It returns the current item, the retired one's replacement marked as moved, and the unknown ID in not_found.

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