logger

BACKEND_BLUEPRINT.md

@@ -98,11 +98,17 @@
   - `emit_interface: true` (generated `Querier` interface)
   - `emit_json_tags: false` (can be revisited if API structs are returned directly)
 - Initial queries implemented for users: `GetUser`, `CreateUser`, `DeleteUser`
-- **Goose startup migrations** have been wired into `cmd/api/main.go`, utilizing the `embed.FS` strategy and logging via Zap adapter.
-- DB pool is successfully wired in `cmd/api`.
-- Environment-aware Zap logger is configured (development vs production).
-- **fx DI wiring** is being introduced to replace manual dependency injection in `main.go`. HTTP layer will use domain handlers structured by route hierarchy (`internal/http/api/...`).
-- **Next Planned:** Implement fx providers for Gin server and DB pool, build `internal/http/server.go`, `internal/http/router.go`, and initial domain handlers (`health`, `auth`).
+- **Goose startup migrations** wired into `db.ProvidePool`, utilizing the `embed.FS` strategy.
+- **fx DI fully implemented.** All dependencies are provided via `fx.Provide` constructors:
+  - `config.Provide` → `*Config`
+  - `logger.NewFromConfig` → `*zap.SugaredLogger`
+  - `db.ProvidePool` → `*pgxpool.Pool` (lifecycle hooks for graceful shutdown)
+  - `http.NewServer` → `*gin.Engine` (lifecycle hooks for startup/shutdown)
+  - `health.NewHandler` → `*health.Handler`
+- **HTTP route hierarchy** via `internal/http/router.go` (`GlueRoutes`):
+  - `GET /api/health/live` - process is alive
+  - `GET /api/health/ready` - DB ping succeeds
+- **Next Planned:** Auth handler (`/api/auth/login`, `/api/auth/register`), JWT middleware, service layer.
 
 ---
 

cmd/api/main.go

@@ -7,13 +7,15 @@ import (
 	"git.kanopo.dev/rhythm/rhythm-backend/internal/http/api/health"
 	"git.kanopo.dev/rhythm/rhythm-backend/internal/logger"
 	"go.uber.org/fx"
+	"go.uber.org/fx/fxevent"
+	"go.uber.org/zap"
 )
 
 func main() {
 	fx.New(
 		fx.Provide(
 			config.Provide,
-			logger.NewFromConfig,
+			logger.ProvideLogger,
 			db.ProvidePool,
 			http.NewServer,
 			health.NewHandler,
@@ -21,5 +23,8 @@ func main() {
 		fx.Invoke(
 			http.GlueRoutes,
 		),
+		fx.WithLogger(func(logger *zap.Logger) fxevent.Logger {
+			return &fxevent.ZapLogger{Logger: logger}
+		}),
 	).Run()
 }

internal/logger/logger.go

@@ -1,13 +1,14 @@
 package logger
 
 import (
-	"go.uber.org/zap"
 	"log"
 
+	"go.uber.org/zap"
+
 	"git.kanopo.dev/rhythm/rhythm-backend/internal/config"
 )
 
-func New(env string) *zap.SugaredLogger {
+func New(env string) (*zap.Logger, *zap.SugaredLogger) {
 	var zapLogger *zap.Logger
 	var err error
 
@@ -21,10 +22,10 @@ func New(env string) *zap.SugaredLogger {
 		log.Fatalf("failed to initialize zap logger: %v", err)
 	}
 
-	return zapLogger.Sugar()
+	return zapLogger, zapLogger.Sugar()
 }
 
-func NewFromConfig(cfg *config.Config) *zap.SugaredLogger {
+func ProvideLogger(cfg *config.Config) (*zap.Logger, *zap.SugaredLogger) {
 	return New(cfg.AppEnv)
 }