- Add swaggo/files and swaggo/gin-swagger imports for Swagger documentation
- Change API route group prefix from "/v1" to "/api/v1"
- Add GET /api/v1/swagger/*any endpoint for Swagger UI documentation
- Update RBAC path from "/v1/users" to "/api/v1/users" for consistency
- Remove standard log import from server_metrics.go
- Add logrus import for structured logging
- Replace log.Printf with logrus.WithError for system metrics storage errors
- Replace log.Printf with logrus.WithError for subscriber count errors (total, active, suspended)
- Replace log.Printf with logrus.WithError for active sessions count errors
- Replace log.Printf with logrus.WithError for /proc/stat, /proc/meminfo, and /proc/net/dev read errors
- Add discovery package import to server.go
- Add fmt and strconv imports for service ID generation and port parsing
- Add CONSUL_ADDR environment variable check to conditionally enable service discovery
- Add discovery.NewServiceDiscovery initialization with error handling and logging
- Add service registration with api-server name, dynamic port from config, and api/telecom tags
- Add serviceID generation using api
- Add RateLimitByUser middleware to protected route group with 100 req/min limit
- Add RateLimitByUser middleware to apiProtected route group with 100 req/min limit
- Add SubscriberHandler to serverDeps with NewSubscriberService initialization
- Add subscriber routes to v1 API with GET (list, by id, by IMSI) and protected POST/PUT operations
- Add RBAC enforcement for subscriber creation, updates, suspension, and termination (admin, operator roles)
- Add registerSubscriberRoutes function with /subscribers endpoint group
- Move charging routes from protected /api group to public /v1/charging group for packet-gateway integration
- Add GET /v1/health endpoint returning status ok
- Remove registerChargingRoutes function (routes now inline in registerV1Routes)
- Remove registerChargingRoutes call from apiProtected group
- Add chargingH field to serverDeps struct
- Add ChargingEngineClient initialization in buildDeps
- Add NewChargingHandler with chargingEngineClient dependency
- Add registerChargingRoutes function with /charging group
- Add POST /charging/credit/:ip/check endpoint
- Add GET /charging/credit/:ip/balance endpoint
- Add POST /charging/credit/:ip/add endpoint
- Add POST /charging/credit/:ip/deduct endpoint
- Call registerChargingRoutes in
- Add main server setup with Gin router, GraphQL handler, and graceful shutdown
- Initialize database connection and metrics collectors (Prometheus and InfluxDB time-series)
- Add HTTP middleware for Prometheus metrics collection
- Add /metrics endpoint for Prometheus scraping and /health endpoint for health checks
- Implement periodic metrics collection (30s interval) for subscribers, sessions, and system
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