unavailable

HTTP 503 · code unavailable

The server cannot handle the request right now.

When Photon sends it

Sent through photonerr.Unavailable(reason), for example during maintenance or when a dependency is down.

What the client should do

Retry later, honouring Retry-After if present.

Example response

{
  "type": "https://photon.agenticmarket.dev/errors/unavailable",
  "title": "service unavailable",
  "status": 503,
  "code": "unavailable"
}

Match on the code field rather than on title, which is meant for people and may change. See all error codes.