Are you having a hard time controlling costs with your architecture in the cloud? It’s a common issue. AWS EventBridge impressed us because it removes the server hassle with running event-driven applications, but the bill definitely underscored how important the pricing structure is.
For those interested in taking advantage of AWS EventBridge and still having their budgets remain intact, this is the guide for you. I will explain the pricing model in simple words, offer actionable advice to lower costs, and present some tools to monitor your costs. We hope that you make EventBridge work smarter, and most importantly, cheaper.
What is AWS EventBridge?
AWS EventBridge integrates with the leading SaaS, commercial and open-source applications to enable the real-time exchange of application events. This helps in making automated workflows and real-time data processing. Moreover, EventBridge allows building systems that are cost-effective, reliable, scalable, and resilient. It helps simplify event-driven architectures for applications, thus fully managing a serverless event bus service.
Key Features:
Event-Driven Architecture: Manage loosely coupled microservices using scalable, event-based triggers.
Seamless Integrations: Custom applications and more than 250 AWS services and SaaS applications can be connected for seamless integration.
Flexible Event Routing: Advanced rules and filters can be used to ensure precise event targeting.
Use Cases:
These are the most common applications: real-time processing of data, automation of tasks, monitoring of software applications, and integration with SaaS platforms. EventBridge also enables the creation and execution of data streamlining workflows with AWS Kinesis and other sophisticated task scheduling tools.
How AWS EventBridge Works
AWS EventBridge processes and routes events from different sources to their appropriate targets. As with many other AWS services, events can originate from EC2, S3, Lambda, custom applications, or third-party SaaS providers. An event bus is created to capture these events, which are then routed according to a set of rules defined by the user.
Event Sources and Targets: AWS services, custom applications, and SaaS providers make up the event sources. The targets are AWS Lambda functions, SNS topics, or even external endpoints, which ensure integration across systems.
Event Rules and Routing: Rules specify how events within a pattern are filtered and routed. An example is being able to invoke Lambda functions for specific S3 events, such as file uploads, which permits the building of complex workflows.
Event Processing: Time between the reception of an event and the bus that sends it to its target can have processes performed on it, such as Pipes and Filters, which enhance automation.
Cost Breakdown of AWS EventBridge
AWS EventBridge operates on a pay-as-you-go model, making it a flexible and cost-effective choice for startups and enterprises. Here is an overview of the structure and pricing:
Key Cost Components:
Event Types
AWS Management Events: Free for intra-account use.
Custom Events: $1 per million events published.
Partner Events: $1 per million events published.
Cross-Account Events: $0.05–$1 per million events, depending on the scenario.
Payload Size
Events are billed in 64 KB chunks. For example, a 128 KB payload equals 2 events.
Delivery Costs
Same Account: Free.
Cross-Account: $0.05–$1 per million events, depending on event type.
Additional Features
Event Replay: $1 per million replayed events, storage is $0.10 per GB/month.
Pipes: $0.40 per million requests processed after filtering.
Scheduler: 14 million invocations free per month, then $1 per million after.
API Destinations: $0.20 per million invocations, plus standard data transfer costs.
Schema Registry: First 5 million events free, $0.10 per million after.
Pricing Example
Suppose you publish 5 million custom events (with 64 KB payloads) and route 3 million events to a different account. Your bill would look like this:
Custom Event Publishing = 5M × $1/M = $5
Cross-Account Delivery = 3M × $0.05/M = $0.15
Total Cost = $5.15
Benefits That Help Optimize Costs
AWS offers tools and free-tier allocations to assist in managing costs for applications triggered by events.
Free Tier for EventBridge
1 million AWS Management Events per month for free.
5 million schema discovery events are free.
14 million scheduler invocations are free per month.
AWS Cost-Saving Features
AWS Savings Plans
Lower prices on EventBridge compute and storage costs can be obtained with a commitment to a minimum usage of some other services. Best suited for companies that have predictable workloads.
Spot Instances for EC2 with EventBridge
Use AWS Spot Instances with EventBridge to reduce compute costs. Triggered by EventBridge, Spot Instances are cheaper than On-Demand Instances, making them perfect for workloads that are flexible and not time sensitive, even if they are unimportant.
Cost Monitoring with AWS Cost Explorer
EventBridge usage and costs can be monitored with AWS Cost Explorer. Track usage metrics, identify and investigate unanticipated cost increases, and streamline event rules for better spending control.
Tools and Best Practices to Reduce EventBridge Costs
Using the native right tools and following best practices reduces costs while maximizing the value derived from AWS EventBridge.
AWS Cost Management Tools
AWS Billing Dashboard: Keeps track of EventBridge costs like other cloud costs. Monitors unusual cloud spending and ensures the company stays within the cloud budget.
AWS Budgets: You can set alarms to monitor spent on EventBridge and set up budgets for it. Send notifications before surpassing the planned budget.
Best Practices
Rule Consolidation: Reduce overlapping or similar event rules. Fewer rules mean reduced management overhead, evaluations, and processed costs.
Enable Input Transformation: Helps avoid extra charges by keeping event sizes under limits. Avoid trimming data. Purposeful trimming avoids payload bloat in data sent to targets.
Archive and Filter Events: Set up policies to delete old events automatically, preserving only the essentials. Reduces storage and replay costs.
Efficient Event Pattern Design: Create specific and targeted event patterns with filtering only to consider relevant events to be processed, thus minimizing evaluations and costs.
Event Batching: Merge multiple events into one processed event and transmit them all at once via EventBridge to decrease the frequency of API calls and enhance performance while reducing costs.
Leverage Third-Party Tools: With Pump, reduce all your AWS service costs by 10%-60%. We use AI, group purchasing, and features like Waterfall Coverage; Pump savings are unrivalled in the industry. It optimizes your cloud spend by its unique combination of advanced AI, group purchasing, and waterfall coverage.
Conclusion
To build scalable and cost-efficient applications, AWS EventBridge’s pricing must be mastered. Cloud environment costs can be minimized by applying AWS cost management tools, best practices, and additional services like Pump, while still maintaining functionality. Take command over your cloud spend with active control and management, and realize the savings today.
Join Pump for Free
If you are an early-stage startup that wants to save on cloud costs, use this opportunity. If you are a start-up business owner who wants to cut down the cost of using the cloud, then this is your chance. Pump helps you save up to 60% in cloud costs, and the best thing about it is that it is absolutely free!
Pump provides personalized solutions that allow you to effectively manage and optimize your Azure, GCP and AWS spending. Take complete control over your cloud expenses and ensure that you get the most from what you have invested. Who would pay more when we can save better?
Are you ready to take control of your cloud expenses?
