Скачать или смотреть Unlocking HTTP Metrics per Endpoint URI in Your Spring Boot Application

Discover how to access detailed `HTTP metrics` per endpoint in Spring Boot with actuator configuration for better performance tracking.
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Understanding HTTP Metrics in Spring Boot

When building applications with Spring Boot, it's common to track various performance metrics to ensure everything runs smoothly. One of the primary ways to monitor performance is through HTTP metrics, which can give us insights into how our endpoints are performing. However, many developers find themselves asking how to extract specific metrics for individual endpoints, such as average response time or error rates. This guide will guide you through the process of obtaining detailed HTTP metrics for each endpoint in your Spring Boot application using actuators.

The Challenge: Aggregated Metrics

When you visit the endpoint /actuator/metrics/http.server.requests, the response you receive contains aggregated metrics for your entire application, which can look something like this:

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While this information is valuable, it gives you an overview rather than details specific to each endpoint, which can leave developers wanting more information about how individual endpoints are performing.

The Solution: Use of Tags to Filter Data

Spring Boot’s actuator provides a powerful querying mechanism via tags to enable developers to collect metrics not just on a global scale, but for each unique endpoint as well. Here’s how you can refine your approach to retrieve specific metrics for an endpoint.

1. Requesting Metrics for a Specific Endpoint

To obtain the metrics for an individual endpoint, such as /hello, you can make a request to the actuator with the appropriate tag like this:

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This command will scope the metrics to just the /hello endpoint, returning detailed statistics instead of an aggregate.

2. Filtering Metrics Further

If you're interested in metrics from a specific endpoint that meets certain criteria, such as success responses only (HTTP status 200), you can further refine your request by combining tags:

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This flexibility allows you to slice the data in a manner that is most relevant to your needs, providing you with a clearer picture of the performance for each endpoint.

Conclusion: Enhance Your Performance Monitoring

By utilizing the actuator's metric capabilities effectively, you can obtain insightful metrics for each endpoint in your Spring Boot application. Filtering through tags not only provides a holistic view of performance but also enables targeted improvements based on data-driven insights.

Now that you know how to get detailed metrics for individual HTTP endpoints, you can take the necessary steps to ensure your application performs at its best. Are there any additional metrics or specific insights you would find helpful? Let us know in the comments!