health-checks

Parallel Service Health Checks with Overall Status Report

You have multiple services and need a single report showing which are healthy and which are degraded. This workflow checks multiple services in parallel using FORK_JOIN, waits for all results, and generates a report with overallStatus (ALL HEALTHY or DEGRADED) and per- service details.

Workflow

(no inputs)
    |
    v
  FORK_JOIN: hc_check_service (one per service)
    each checks serviceName at endpoint
    returns health map per service
    |
    v
  JOIN
    |
    v
+---------------------+
| hc_generate_report  |   overallStatus + per-service details + checkedAt
+---------------------+

Workers

CheckServiceWorker -- Checks serviceName at endpoint. Returns a health map with service status details.

GenerateReportWorker -- Aggregates results: overallStatus is "ALL HEALTHY" or "DEGRADED" depending on whether all checks passed. Returns services details and a checkedAt timestamp.

Tests

9 unit tests cover individual service checks and report generation.

Running

See ../../RUNNING.md for setup and execution instructions.