ALIYUN::MNS::Subscription is used to subscribe an endpoint to an Alibaba Cloud Message Service (MNS) topic. For a subscription to be created, the owner of the endpoint must confirm the subscription.
Syntax
{
"Type": "ALIYUN::MNS::Subscription",
"Properties": {
"Endpoint": String,
"NotifyStrategy": String,
"FilterTag": String,
"NotifyContentFormat": String,
"SubscriptionName": String,
"TopicName": String
}
}
Properties
Property | Type | Required | Editable | Description | Constraint |
---|---|---|---|---|---|
TopicName | String | Yes | No | The name of the topic. | The topic name must be unique within an Alibaba Cloud account in a region. The name can be up to 256 characters in length and can contain letters, digits, and hyphens (-). It must start with a letter. |
SubscriptionName | String | Yes | No | The name of the subscription. | The name can be up to 256 characters in length and can contain letters, digits, and hyphens (-). It must start with a letter. |
Endpoint | String | Yes | No | The endpoint that the subscriber uses to receive messages. | Valid values:
|
FilterTag | String | No | No | The message filtering tag in the subscription. | The parameter value can be up to 16 characters in length. By default, no messages are filtered. Note Only messages that have consistent tags are pushed. |
NotifyStrategy | String | No | Yes | The retry policy that is applied when an error occurs when message is delivered to the endpoint. | Default value: BACKOFF_RETRY. Valid values:
|
NotifyContentFormat | String | No | No | The format of the message content pushed to the endpoint. | Default value: XML. Valid values:
|
Response parameters
Fn::GetAtt
- SubscriptionUrl: the URL of the created subscription.
- SubscriptionName: the name of the subscription.
- TopicName: the name of the topic.
Examples
JSON
format{ "ROSTemplateFormatVersion": "2015-09-01", "Parameters": { }, "Resources": { "Subscription": { "Type": "ALIYUN::MNS::Subscription", "Properties": { "TopicName": "TestTopic", "SubscriptionName": "TestSubscription", "Endpoint": "http://endpoint.com" } } }, "Outputs": { "SubscriptionUrl": { "Description": "URL of created subscription", "Value": { "Fn::GetAtt": [ "Subscription", "SubscriptionUrl" ] } }, "SubscriptionName": { "Description": "Subscription name", "Value": { "Fn::GetAtt": [ "Subscription", "SubscriptionName" ] } }, "TopicName": { "Description": "Topic name", "Value": { "Fn::GetAtt": [ "Subscription", "TopicName" ] } } } }
For more examples, visit Subscription.json and Subscription.yml. In the examples, the ALIYUN::MNS::Topic, ALIYUN::MNS::Queue, and ALIYUN::MNS::Subscription resource types are involved.