Subscribes an endpoint to an Amazon SNS topic. If the endpoint type is
HTTP/S or email, or if the endpoint and the topic are not in the same
AWS account, the endpoint owner must run the
confirm_subscription action to confirm the
subscription.
You call the confirm_subscription action
with the token from the subscription response. Confirmation tokens are
valid for three days.
This action is throttled at 100 transactions per second (TPS).
sns_subscribe(TopicArn, Protocol, Endpoint, Attributes,
ReturnSubscriptionArn)[required] The ARN of the topic you want to subscribe to.
[required] The protocol you want to use. Supported protocols include:
http <U+2013> delivery of JSON-encoded message via HTTP POST
https <U+2013> delivery of JSON-encoded message via HTTPS POST
email <U+2013> delivery of message via SMTP
email-json <U+2013> delivery of JSON-encoded message via SMTP
sms <U+2013> delivery of message via SMS
sqs <U+2013> delivery of JSON-encoded message to an Amazon SQS queue
application <U+2013> delivery of JSON-encoded message to an EndpointArn
for a mobile app and device.
lambda <U+2013> delivery of JSON-encoded message to an Amazon Lambda
function.
The endpoint that you want to receive notifications. Endpoints vary by protocol:
For the http protocol, the (public) endpoint is a URL beginning
with http://
For the https protocol, the (public) endpoint is a URL beginning
with https://
For the email protocol, the endpoint is an email address
For the email-json protocol, the endpoint is an email address
For the sms protocol, the endpoint is a phone number of an
SMS-enabled device
For the sqs protocol, the endpoint is the ARN of an Amazon SQS
queue
For the application protocol, the endpoint is the EndpointArn of a
mobile app and device.
For the lambda protocol, the endpoint is the ARN of an Amazon
Lambda function.
A map of attributes with their corresponding values.
The following lists the names, descriptions, and values of the special
request parameters that the
set_topic_attributes action uses:
DeliveryPolicy <U+2013> The policy that defines how Amazon SNS retries
failed deliveries to HTTP/S endpoints.
FilterPolicy <U+2013> The simple JSON object that lets your subscriber
receive only a subset of messages, rather than receiving every
message published to the topic.
RawMessageDelivery <U+2013> When set to true, enables raw message
delivery to Amazon SQS or HTTP/S endpoints. This eliminates the need
for the endpoints to process JSON formatting, which is otherwise
created for Amazon SNS metadata.
RedrivePolicy <U+2013> When specified, sends undeliverable messages to
the specified Amazon SQS dead-letter queue. Messages that can't be
delivered due to client errors (for example, when the subscribed
endpoint is unreachable) or server errors (for example, when the
service that powers the subscribed endpoint becomes unavailable) are
held in the dead-letter queue for further analysis or reprocessing.
Sets whether the response from the subscribe request
includes the subscription ARN, even if the subscription is not yet
confirmed.
If you set this parameter to true, the response includes the ARN in
all cases, even if the subscription is not yet confirmed. In addition to
the ARN for confirmed subscriptions, the response also includes the
pending subscription ARN value for subscriptions that aren't yet
confirmed. A subscription becomes confirmed when the subscriber calls
the confirm_subscription action with a
confirmation token.
The default value is false.
A list with the following syntax:
list( SubscriptionArn = "string" )
svc$subscribe(
TopicArn = "string",
Protocol = "string",
Endpoint = "string",
Attributes = list(
"string"
),
ReturnSubscriptionArn = TRUE|FALSE
)