As soon as the publisher sends a message to a topic, Amazon SNS will try to deliver a notification/message to all the subscribers. The subscriber may have different protocols and individual endpoints. With the help of the following steps, a message can be published over an SNS topic:
- Go to the SNS dashboard and select Topics from the left-hand side pane; it will display a list of topics, as shown in Figure 13.12:

Figure 13.12: SNS Topics dashboard
- Click on the topic Name, as shown in Figure 13.13:

Figure 13.13: Select topic; to get ARN
- Click on Publish message, as shown in Figure 13.14:

Figure 13.14: SNS topic details
- To publish a message, provide the details, as shown in Figure 13.15:

Figure 13.15: Publish a message on a topic
The fields in the preceding screenshot are explained as follows:
- Subject: This is optional and can...