AWSSNSCreateTopicInput
Objective-C
@interface AWSSNSCreateTopicInput
Swift
class AWSSNSCreateTopicInput
Input for CreateTopic action.
Required parameters: [Name]
-
A map of attributes with their corresponding values.
The following lists the names, descriptions, and values of the special request parameters that the
CreateTopic
action uses:DeliveryPolicy
– The policy that defines how Amazon SNS retries failed deliveries to HTTP/S endpoints.DisplayName
– The display name to use for a topic with SMS subscriptions.FifoTopic
– Set to true to create a FIFO topic.Policy
– The policy that defines who can access your topic. By default, only the topic owner can publish or subscribe to the topic.
The following attribute applies only to server-side-encryption:
KmsMasterKeyId
– The ID of an AWS-managed customer master key (CMK) for Amazon SNS or a custom CMK. For more information, see Key Terms. For more examples, see KeyId in the AWS Key Management Service API Reference.
The following attributes apply only to FIFO topics:
FifoTopic
– When this is set totrue
, a FIFO topic is created.ContentBasedDeduplication
– Enables content-based deduplication for FIFO topics.By default,
ContentBasedDeduplication
is set tofalse
. If you create a FIFO topic and this attribute isfalse
, you must specify a value for theMessageDeduplicationId
parameter for the Publish action.When you set
ContentBasedDeduplication
totrue
, Amazon SNS uses a SHA-256 hash to generate theMessageDeduplicationId
using the body of the message (but not the attributes of the message).(Optional) To override the generated value, you can specify a value for the the
MessageDeduplicationId
parameter for thePublish
action.
Declaration
Objective-C
@property (nonatomic, strong) NSDictionary<NSString *, NSString *> *_Nullable attributes;
Swift
var attributes: [String : String]? { get set }
-
The name of the topic you want to create.
Constraints: Topic names must be made up of only uppercase and lowercase ASCII letters, numbers, underscores, and hyphens, and must be between 1 and 256 characters long.
For a FIFO (first-in-first-out) topic, the name must end with the
.fifo
suffix.Declaration
Objective-C
@property (nonatomic, strong) NSString *_Nullable name;
Swift
var name: String? { get set }