{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "#/components/schemas/IdentifyCall", "title": "IdentifyCall", "type": "object", "description": "An identify call associates a user with their traits.", "properties": { "userId": { "type": "string", "description": "Unique identifier for the user in your database." }, "anonymousId": { "type": "string", "description": "A pseudo-unique substitute for a user ID for cases when you do not have an absolutely unique identifier." }, "traits": { "type": "object", "description": "Free-form dictionary of traits of the user, like email or name.", "additionalProperties": true }, "context": { "$ref": "#/components/schemas/Context" }, "integrations": { "$ref": "#/components/schemas/Integrations" }, "timestamp": { "type": "string", "format": "date-time", "description": "ISO 8601 date string when the message was originally sent." }, "messageId": { "type": "string", "description": "Unique identifier for the message to deduplicate." } } }