refactor: significant changes related to routing and general code cleanup

routes/api/health.go

@@ -0,0 +1,33 @@
+package api
+
+import (
+	"fmt"
+	"github.com/gorilla/mux"
+	"gorm.io/gorm"
+	"net/http"
+)
+
+type HealthApiHandler struct {
+	db *gorm.DB
+}
+
+func NewHealthApiHandler(db *gorm.DB) *HealthApiHandler {
+	return &HealthApiHandler{db: db}
+}
+
+func (h *HealthApiHandler) RegisterRoutes(router *mux.Router) {
+	r := router.PathPrefix("/health").Subrouter()
+	r.Methods(http.MethodGet).HandlerFunc(h.Get)
+}
+
+func (h *HealthApiHandler) Get(w http.ResponseWriter, r *http.Request) {
+	var dbStatus int
+	if sqlDb, err := h.db.DB(); err == nil {
+		if err := sqlDb.Ping(); err == nil {
+			dbStatus = 1
+		}
+	}
+
+	w.Header().Set("Content-Type", "text/plain")
+	w.Write([]byte(fmt.Sprintf("app=1\ndb=%d", dbStatus)))
+}