Mappings Between SMN Actions and APIs¶
Action | API | Function |
|---|---|---|
SMN:UpdateTopic | UpdateTopic | Modify the topic. Only the display_name value can be changed. |
SMN:DeleteTopic | DeleteTopic | Delete a topic and its subscribers. If a topic is deleted, any pending messages may fail to send to the topic subscribers. |
SMN:QueryTopicDetail | QueryTopicDetail | Query details about a topic. |
SMN:ListTopicAttributes | ListTopicAttributes | Query topic attributes. |
SMN:UpdateTopicAttribute | UpdateTopicAttribute | Modify an attribute of a topic. |
SMN:DeleteTopicAttributes | DeleteTopicAttributes | Delete all attributes of a topic. |
SMN:DeleteTopicAttributeByName | DeleteTopicAttributeByName | Delete an attribute of a specified topic. |
SMN:ListSubscriptionsByTopic | ListSubscriptionsByTopic | Query the subscription list of a specified topic by page. The list is sorted by time when the subscriptions are added in ascending order. You can specify values of offset and limit. If no subscription has been added, an empty list is returned. |
SMN:Subscribe | Subscribe | Add a subscription to a specified topic and send a confirmation message to the subscriber. After confirming the subscription, the subscriber can receive notification messages published to the topic. |
SMN:Unsubscribe | Unsubscribe | Delete a subscription. This operation requires identity authentication. Only the subscriber or the topic owner can delete a subscription. |
SMN:Publish | Publish | Publish messages to a topic. After a message ID is returned, the message has been saved and is to be delivered to subscribers of the topic. The message form varies depending on the protocol of each subscription. |