Help Center/ Cloud Eye/ User Guide (Paris Region) / Using the Alarm Function/ Creating Alarm Notification Topics/ Creating a Topic
Updated on 2022-02-22 GMT+08:00
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Creating a Topic

Scenarios

A topic serves as a message sending channel, where publishers and subscribers can interact with each other.

You can create your own topic.

Creating a Topic

  1. Choose Service List > Application > Simple Message Notification.

    The SMN console is displayed.

  2. In the navigation pane on the left, choose Topics.

    The Topics page is displayed.

  3. Click Create Topic.

    The Create Topic dialog box is displayed.

  4. Enter a topic name and display name (topic description).
    Table 1 Parameters required for creating a topic

    Parameter

    Description

    Topic Name

    Specifies the topic name, which

    • Contains only letters, digits, hyphens (-), and underscores (_) and must start with a letter or a digit.
    • Must contain 1 to 256 characters.
    • Must be unique and cannot be modified after the topic is created.

    Display Name

    Specifies the message sender name, which must be less than 192 characters.

    NOTE:

    After you specify a display name in Display name<username@example.com> format, the name you specify will be displayed as the email sender. Otherwise, the sender name will be displayed as username@example.com.
  5. Click OK.

    The topic you created is displayed in the topic list.

    After you create a topic, the system generates a uniform resource name (URN) for the topic, which uniquely identifies the topic and cannot be changed.

  6. Click a topic name to view the topic details and the total number of topic subscriptions.

Follow-up Operations

After you create a topic, add subscriptions. After the subscriptions have been confirmed, alarm notifications will be sent to the subscription endpoints via SMN.