Code in

Event: user.signed_in

Somebody signed in to your app: a code was issued to your client.

Payload

Field	Type	What it is
`id`	string	The event's id, the same as the Atheron-Event-Id header
`type`	string	`user.signed_in`
`created`	string (ISO 8601)	When the event was raised
`client_id`	string	The client (test or live) it is about
`data.sub`	string	The person's ID for your app alone (pairwise): the sub your app was given.
`data.scopes`	string[]	The scopes granted for this sign-in.
`data.at`	string (ISO 8601)	When it happened.

json

{
  "id": "6f0c2e1a-8b0d-4f4e-9a51-2c1d7e9b3a10",
  "type": "user.signed_in",
  "created": "2026-10-15T17:02:11.000Z",
  "client_id": "live-1a2b3c4d5e6f7a8b",
  "data": { "sub": "9a6d4c1e-1f0b-4a51-8a8e-3b2f6c0d7e11", "scopes": ["openid", "profile", "email"], "at": "2026-10-15T17:02:11.000Z" }
}

What to do

Nothing is required. Use it for your own analytics or to warm a cache.

Checking it

Check the signature before you act on it (how), and answer 2xx within ten seconds.

Ask Atlas

AI assistant

Ask anything about Sign in with Atheron, the API or the portal. You get an answer from our docs, with links to the pages it used.