SteadyNode Solutions
Monitor Spring Boot readiness, API contracts, and user journeys
Monitor Spring Boot readiness, API contracts, and customer journeys with HTTP and Playwright checks.
Separate Actuator readiness from liveness
A root /actuator/health response may expose only UP; hidden management.endpoint.health.show-details also hides component detail. A liveness check can prove the JVM responds without proving dependencies are ready. Poll /actuator/health/readiness and business-critical REST routes. Keep /actuator/env, /actuator/heapdump, and /actuator/beans firewalled from public access.
Import documented GET routes
Teams using springdoc-openapi can provide their /v3/api-docs URL; Swagger 2.0 JSON is supported as well. SteadyNode lists eligible static GET operations for review, so teams can provision monitors without entering each route by hand. Parameterized paths and other methods are skipped.
Catch Jackson DTO and Java record drift
Renaming a Java record field, changing a Long ID to UUID or String, or altering @JsonInclude(Include.NON_NULL) can leave a controller returning HTTP 200 OK while clients fail. Schema Guard extracts a value-free Jackson JSON AST in memory, then stores only the structural baseline. It flags NUMBER -> STRING, missing keys, and newly null fields after deployment.
Use phase timings to narrow latency investigations
The five-phase waterfall separates DNS, TCP, TLS, TTFB, and transfer. A TLS rise localizes delay to the handshake; flat network phases with rising TTFB point to time at or beyond the service. JVM cold starts, HikariCP pool exhaustion, and database locks can all raise TTFB, but outside-in timing cannot distinguish them. Confirm with JVM and database telemetry.
Frequently asked questions
Should I expose the full Spring Boot Actuator endpoint set?
No. Expose only the health signals needed for monitoring and keep sensitive or diagnostic Actuator endpoints behind access controls.
Are health checks enough to monitor a Spring Boot application?
No. Pair readiness checks with important API routes and user journeys so a healthy process does not hide a broken customer-facing service.
Keep investigating
Related monitoring guides and free tools
- Free toolFree Security Posture Grader PreviewPreview simulated header, TLS, CAA, SPF, and DMARC results. No requests are sent to the entered domain.
- Free toolFree JSON Schema ComparatorDiff two JSON payloads for breaking type changes and export TypeScript interfaces in your browser.
- Free toolFree TLS Chain DebuggerInspect the exact certificate chain your endpoint presents and catch missing intermediates.
- Engineering guideAPI schema drift monitoringLearn a value-free response baseline and review breaking JSON contract changes.
- Engineering guideAPI discovery and OpenAPI importReview discovered paths or import eligible static GET routes from an API document.
Make critical checks part of your routine
Start with the endpoints and customer journeys that matter most, then build coverage as your services grow.
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