{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api-evangelist.github.io/sift-com/json-schema/sift-event-schema.json",
  "title": "Sift Event",
  "description": "A Sift reserved or custom event submitted to the Sift Events API.",
  "type": "object",
  "required": ["$type", "$api_key"],
  "properties": {
    "$type": {
      "type": "string",
      "description": "Reserved Sift event type. Begins with a dollar sign for reserved types; custom types are user-defined.",
      "examples": [
        "$create_account",
        "$create_order",
        "$transaction",
        "$login",
        "$chargeback",
        "$verification"
      ]
    },
    "$api_key": {
      "type": "string",
      "description": "Sift account API key. May alternatively be sent via HTTP Basic header."
    },
    "$user_id": { "type": "string" },
    "$session_id": { "type": "string" },
    "$ip": { "type": "string" },
    "$user_email": { "type": "string", "format": "email" },
    "$name": { "type": "string" },
    "$phone": { "type": "string" },
    "$browser": {
      "type": "object",
      "properties": {
        "$user_agent": { "type": "string" },
        "$accept_language": { "type": "string" },
        "$content_language": { "type": "string" }
      }
    },
    "$app": {
      "type": "object",
      "properties": {
        "$os": { "type": "string" },
        "$os_version": { "type": "string" },
        "$device_manufacturer": { "type": "string" },
        "$device_model": { "type": "string" },
        "$device_unique_id": { "type": "string" },
        "$app_name": { "type": "string" },
        "$app_version": { "type": "string" },
        "$client_language": { "type": "string" }
      }
    },
    "$time": { "type": "integer", "description": "Unix epoch milliseconds when the event occurred." }
  },
  "additionalProperties": true
}