DevPulse — API Health Monitoring Platform

A real-time API monitoring system built with Java Spring Boot and Go. Register your API endpoints and DevPulse automatically checks their health every 30 seconds, recording response times and status history.

Architecture

┌─────────────────┐         ┌──────────────────┐
│   Java API      │         │   Go Monitor     │
│  Spring Boot    │◄────────│                  │
│  Port 8080      │         │  Goroutines ping │
│                 │────────►│  each endpoint   │
│  User mgmt      │         │  concurrently    │
│  Endpoint mgmt  │         │  every 30s       │
│  History API    │         └──────────────────┘
└────────┬────────┘
         │
         ▼
┌─────────────────┐
│   PostgreSQL    │
│   Port 5432     │
└─────────────────┘

Why two languages?

The Go monitor runs one tight loop making thousands of lightweight HTTP calls. Go goroutines handle this concurrency cheaper than Java threads. The Java API handles user management and data serving where Spring Boot's ecosystem saves significant development time.

Quick start

docker-compose up --build

API Reference

Auth

Method	Endpoint	Description
POST	/auth/register	Register a user
POST	/auth/login	Login, get JWT token

Endpoints

Method	Endpoint	Description
GET	/api/endpoints	List your endpoints
POST	/api/endpoints	Register an endpoint
DELETE	/api/endpoints/{id}	Deactivate an endpoint
GET	/api/endpoints/{id}/history	Last 20 health checks
GET	/api/endpoints/{id}/stats	Average response time

Tech stack

• Java 17 + Spring Boot — management API
• Go 1.22 — concurrent health monitor
• PostgreSQL 16 — persistence
• Docker Compose — orchestration
• JWT — authentication
• BCrypt — password hashing