Oracle Cloud Infrastructure Documentation

Publishing Messages

This topic describes how to publish (Notifications and Monitoring services) An alert published to all subscriptions in the specified topic. Each message is delivered at least once per subscription. directly using the Notifications service. You can manually enter the message content or allow a service or app to programmatically define the message content.

Each message is broadcast to all (Notifications service) An endpoint for a topic; typically a URL or email address. Published messages are sent to each subscription for a topic. in the specified (Notifications service) A communication channel for sending messages to the subscriptions in the topic.. Every message sent out as email contains a link to unsubscribe from the related topic.

Message delivery rate limits per endpoint: 60 messages per minute for HTTP-based protocols. (HTTP-based protocols use URL endpoints that begin with "http:" or "https:".) 10 messages per minute for Email protocol.


Avoid entering confidential information when assigning descriptions, tags, or friendly names to your cloud resources through the Oracle Cloud Infrastructure Console, API, or CLI.


  • IAM policies: To use Notifications, you must be given the required type of access in a An IAM document that specifies who has what type of access to your resources. It is used in different ways: to mean an individual statement written in the policy language; to mean a collection of statements in a single, named "policy" document (which has an Oracle Cloud ID (OCID) assigned to it); and to mean the overall body of policies your organization uses to control access to resources. written by an administrator, whether you're using the Console or the REST API with an SDK, CLI, or other tool. If you get a response that you don’t have permission or are unauthorized, check with your administrator. You may not have the required type of access in the current A collection of related resources that can be accessed only by certain groups that have been given permission by an administrator in your organization.. For more information on user authorizations, see Notifications Overview.
  • Before you can publish a message, you need a topic with at least one subscription. See Managing Topics and Subscriptions.

Creating Automation with Events

You can create automation based on state changes for your Oracle Cloud Infrastructure resources by using event types, rules, and actions. For more information, see Overview of Events.

Using the Console

To publish a message

Using the API

For information about using the API and signing requests, see REST APIs and Security Credentials. For information about SDKs, see Software Development Kits and Command Line Interface.

Use these API operations to publish messages: