{
  "typeName": "AWS::SNS::Topic",
  "description": "The AWS::SNS::Topic resource creates a topic to which notifications can be published.",
  "properties": {
    "TopicName": {
      "type": "string",
      "description": "The name of the topic.",
      "minLength": 1,
      "maxLength": 256
    },
    "TopicArn": {
      "type": "string",
      "description": "The Amazon Resource Name (ARN) of the topic."
    },
    "DisplayName": {
      "type": "string",
      "description": "The display name to use for an SNS topic with SMS subscriptions."
    },
    "Subscription": {
      "type": "array",
      "items": {
        "$ref": "#/definitions/Subscription"
      },
      "description": "The SNS subscriptions (endpoints) for this topic."
    },
    "Tags": {
      "type": "array",
      "items": {
        "$ref": "#/definitions/Tag"
      },
      "description": "The list of tags to add to a new topic."
    }
  },
  "definitions": {
    "Subscription": {
      "type": "object",
      "description": "An SNS subscription associated with the topic.",
      "properties": {
        "Protocol": {
          "type": "string",
          "description": "The subscription's protocol.",
          "enum": ["http", "https", "email", "email-json", "sms", "sqs", "application", "lambda"]
        },
        "Endpoint": {
          "type": "string",
          "description": "The endpoint that receives notifications from the topic."
        }
      },
      "required": ["Protocol", "Endpoint"]
    },
    "Tag": {
      "type": "object",
      "description": "A key-value pair to associate with a resource.",
      "properties": {
        "Key": {
          "type": "string",
          "minLength": 1,
          "maxLength": 128
        },
        "Value": {
          "type": "string",
          "maxLength": 256
        }
      },
      "required": ["Key", "Value"]
    }
  },
  "readOnlyProperties": ["/properties/TopicArn"],
  "primaryIdentifier": ["/properties/TopicArn"],
  "additionalProperties": false
}