publishToUser

SRP

Publishes data to the user subscription channel. This mutation is IAM-authenticated (@aws_iam) and is used internally by the system to push real-time notifications.

For the canonical subscription payload contract, see:

• Subscription Event Schema
• Subscription Event Format

Arguments

Argument	Type	Required	Description
userId	ID!	Yes	The user to publish to
data	AWSJSON!	Yes	JSON-encoded event envelope

Return Type

UserFeedback — contains userId and data.

Example

mutation PublishToUser {
  publishToUser(
    userId: "dXNyMTIzNDU2"
    data: "{\"version\":\"1.0\",\"eventId\":\"evt123\",\"timestamp\":\"2026-04-24T10:38:36.822Z\",\"level\":\"INFO\",\"event\":\"uploadCompleted\",\"category\":\"upload\",\"groupId\":null,\"userId\":\"dXNyMTIzNDU2\",\"requestId\":null,\"batchId\":null,\"error\":null,\"data\":{\"id\":\"tmp123\",\"key\":\"upload/usr123/tmp123.pdf\",\"code\":\"UPLOADOK\"}}"
  ) {
    userId
    data
  }
}

The GraphQL result wrapper still returns:

• userId
• data

The data field itself is the JSON-encoded event envelope.

Related

• publishToGroup