SetSubscriptionAttributes Method
Sets attributes of the subscription.
Syntax
sns.setSubscriptionAttributes(subscriptionArn, attributeValue, [callback])
Callback
The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).
The callback for this method is defined as:
function(err){ }
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'err' has 2 properties which hold detailed information:
err.code err.message
Remarks
This method is used to set an attribute of the subscription. Currently only the delivery policy may be set.
The SubscriptionArn parameter specifies the Amazon Resource Name (ARN) of the subscription.
The AttributeValue specifies the value to be set. Since the only currently valid attribute is the delivery policy,
this is the value of the delivery policy in JSON format, for instance:
{"healthyRetryPolicy": {"minDelayTarget": 1, "maxDelayTarget": 5, "numRetries": 5, "numMaxDelayRetries": 5, "backoffFunction": "linear"}}