初始化

API/internal/handler/health.go

@@ -0,0 +1,48 @@
+package handler
+
+import (
+	"context"
+	"database/sql"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/redis/go-redis/v9"
+)
+
+type Health struct {
+	db    *sql.DB
+	redis *redis.Client
+}
+
+func NewHealth(db *sql.DB, redisClient *redis.Client) *Health {
+	return &Health{db: db, redis: redisClient}
+}
+
+func (h *Health) Check(c *gin.Context) {
+	ctx, cancel := context.WithTimeout(c.Request.Context(), 2*time.Second)
+	defer cancel()
+
+	services := map[string]string{
+		"postgresql": "ok",
+		"redis":      "ok",
+	}
+	status := "ok"
+	statusCode := http.StatusOK
+
+	if err := h.db.PingContext(ctx); err != nil {
+		services["postgresql"] = "unavailable"
+		status = "degraded"
+		statusCode = http.StatusServiceUnavailable
+	}
+	if err := h.redis.Ping(ctx).Err(); err != nil {
+		services["redis"] = "unavailable"
+		status = "degraded"
+		statusCode = http.StatusServiceUnavailable
+	}
+
+	c.JSON(statusCode, gin.H{
+		"status":   status,
+		"services": services,
+	})
+}