{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://api-evangelist.github.io/sendbird/json-schema/sendbird-user-schema.json",
  "title": "Sendbird User",
  "description": "A user registered in the Sendbird application.",
  "type": "object",
  "properties": {
    "user_id": {
      "type": "string",
      "description": "Unique identifier of the user within the Sendbird application."
    },
    "nickname": {
      "type": "string",
      "description": "Display nickname of the user shown in chat."
    },
    "profile_url": {
      "type": "string",
      "format": "uri",
      "description": "URL of the user's profile image."
    },
    "is_online": {
      "type": "boolean",
      "description": "Whether the user is currently online."
    },
    "is_active": {
      "type": "boolean",
      "description": "Whether the user account is active (not deactivated)."
    },
    "last_seen_at": {
      "type": "integer",
      "description": "Unix timestamp (milliseconds) of the user's last activity."
    },
    "access_token": {
      "type": "string",
      "description": "Session token for the user. Returned when issue_access_token is true during creation."
    },
    "metadata": {
      "type": "object",
      "description": "Custom metadata key-value pairs associated with the user.",
      "additionalProperties": {
        "type": "string"
      }
    },
    "created_at": {
      "type": "integer",
      "description": "Unix timestamp (milliseconds) when the user was created."
    }
  },
  "required": ["user_id", "nickname", "profile_url"]
}