API Destinations is a new feature for EventBridge that enables developers to send events back to many on-premises or software as a service (SaaS) applications with the ability to control throughput and authentication. Customers can send events to any web-based application with a web address without worrying about writing custom code, or using additional infrastructure. Customers can configure rules with input transformations that will map the event’s format to the receiving service format, and you can use EventBridge to take care of security and delivery. Learn more in this blog post.
Archive and Replay Events
Event Replay is a new feature for Amazon EventBridge that allows customers to reprocess past events back to an event bus or a specific EventBridge rule. This feature enables developers to debug their applications quickly, extend them by hydrating targets with historic events, and recover from errors. Learn more in this blog post.
The EventBridge schema registry stores event schema in a registry that other developers can easily search and access in your organization, so you don’t have to find events and their structure manually. The registry also allows you to generate code bindings for programming languages such as Java, Python, or TypeScript directly in your IDE so that the event can be used as an object in your code. By turning on schema discovery for an event bus, the schemas of events are automatically discovered and added to the registry, removing the need to create a schema for an event manually. Schemas for all AWS services are automatically visible in your schema registry, and the schemas for integrated SaaS applications are visible when you turn on schema discovery for the SaaS partner event bus. Learn more in this blog post. Learn more in this blog post.
Fully managed and scalable event bus
Amazon EventBridge is a serverless, fully managed, and scalable event bus that allows applications to communicate using events. There is no infrastructure to manage and no capacity to provision.
Your AWS applications can take action based on events that SaaS applications generate. Amazon EventBridge is natively integrated with SaaS applications from many providers including Datadog, OneLogin, PagerDuty, Savyint, Segment, SignalFX, SugarCRM, Symantec, Whispir, and Zendesk, with additional integrations planned. You don’t need to manage any integration setup such as authentication events from your SaaS provider simply appear on your event bus.
Over 100 built-in event sources and targets
Amazon EventBridge is directly integrated with over 130 event sources and over 35 targets, including AWS Lambda, Amazon SQS, Amazon SNS, AWS Step Functions, Amazon Kinesis Data Streams, Amazon Kinesis Data Firehose, with additional sources and targets planned. All mutating API calls (i.e., all calls except Describe*, List*, and Get*) across all AWS services generate events through AWS CloudTrail.
Decoupled event publishers and subscribers
Amazon EventBridge makes it easy for you to build event-driven application architectures. Applications or microservices can publish events to the event bus without awareness of subscribers. Applications or microservices can subscribe to events without awareness of the publisher. You can also send events from your own applications to an event bus via the service’s PutEvents API. Other applications can then receive events through any of the many supported AWS target services. This decoupling allows teams to work independently, leading to faster development and improved agility.
You can filter events with rules. A rule matches incoming events for a given event bus and routes them to targets for processing. A single rule can route to multiple targets, all of which are processed in parallel. Rules allow different application components to look for and process the events that are of interest to them. A rule can customize an event before it is sent to the target by passing along only certain parts or by overwriting it with a constant. You can also have multiple rules that match on the same event, so different microservices or applications can choose to match events based on specific filters.
Reliable event delivery
Amazon EventBridge provides at-least-once event delivery to targets, including retry with exponential backoff for up to 24 hours. Events are stored durably across multiple Availability Zones (AZs), providing additional assurance your events will be delivered to their destination. Amazon EventBridge also provides a 99.99% availability service level agreement (SLA), ensuring your applications are able to access the service reliably.
Automatic response to operational changes in AWS services
Amazon EventBridge extends its predecessor, Amazon CloudWatch Events, and provides a near- real time stream of system events that describe changes to your AWS resources. It allows you to respond quickly to operational changes and take corrective action. You simply write rules to indicate which events are of interest to your application and what automated actions to take when a rule matches an event. You can, for example, set a rule to invoke an AWS Lambda function to remediate an issue, or notify an Amazon Simple Notification Service (SNS) topic to alert an operator.
You can set up scheduled events using the popular Unix cron syntax. Scheduled events are generated on a periodic basis and invoke any of the supported target AWS services.
Monitoring and auditing
You can monitor your event bus using Amazon CloudWatch metrics, such as the number of times an event matches a rule, or the number of times a target is invoked. You can use Amazon CloudWatch Logs to store, monitor, and analyze events that are triggered in your environment. AWS CloudTrail enables you to monitor the calls made to the Amazon EventBridge API.
Security and compliance
Amazon EventBridge integrates with AWS Identity and Access Management (IAM) so that you can control which users and resources have permission to access your data and how they can access it. EventBridge supports VPC endpoints and encryption in transit using TLS 1.2. Amazon EventBridge is GDPR, SOC, ISO, DoD CC SRG, and FedRamp compliant and is also HIPAA-eligible.
Pay per event
Events generated by AWS services are free. You only pay for events generated by your own applications or SaaS applications (see pricing here).
Visit the Amazon EventBridge pricing page.
Get started building with Amazon EventBridge in the AWS Management Console.
Get a deeper understanding of EventBridge in the Developer Guide.