FEATURE (version): Reload frontend if faced version mismatch with backend

backend/cmd/main.go

@@ -29,6 +29,7 @@ import (
 	"databasus-backend/internal/features/restores/restoring"
 	"databasus-backend/internal/features/storages"
 	system_healthcheck "databasus-backend/internal/features/system/healthcheck"
+	system_version "databasus-backend/internal/features/system/version"
 	task_cancellation "databasus-backend/internal/features/tasks/cancellation"
 	users_controllers "databasus-backend/internal/features/users/controllers"
 	users_middleware "databasus-backend/internal/features/users/middleware"
@@ -210,6 +211,7 @@ func setUpRoutes(r *gin.Engine) {
 	userController := users_controllers.GetUserController()
 	userController.RegisterRoutes(v1)
 	system_healthcheck.GetHealthcheckController().RegisterRoutes(v1)
+	system_version.GetVersionController().RegisterRoutes(v1)
 	backups_controllers.GetBackupController().RegisterPublicRoutes(v1)
 	backups_controllers.GetPostgresWalBackupController().RegisterRoutes(v1)
 	databases.GetDatabaseController().RegisterPublicRoutes(v1)

backend/internal/features/system/version/controller.go

@@ -0,0 +1,30 @@
+package system_version
+
+import (
+	"net/http"
+	"os"
+
+	"github.com/gin-gonic/gin"
+)
+
+type VersionController struct{}
+
+func (c *VersionController) RegisterRoutes(router *gin.RouterGroup) {
+	router.GET("/system/version", c.GetVersion)
+}
+
+// GetVersion
+// @Summary Get application version
+// @Description Returns the current application version
+// @Tags system/version
+// @Produce json
+// @Success 200 {object} VersionResponse
+// @Router /system/version [get]
+func (c *VersionController) GetVersion(ctx *gin.Context) {
+	version := os.Getenv("APP_VERSION")
+	if version == "" {
+		version = "dev"
+	}
+
+	ctx.JSON(http.StatusOK, VersionResponse{Version: version})
+}

backend/internal/features/system/version/di.go

@@ -0,0 +1,7 @@
+package system_version
+
+var versionController = &VersionController{}
+
+func GetVersionController() *VersionController {
+	return versionController
+}

backend/internal/features/system/version/dto.go

@@ -0,0 +1,5 @@
+package system_version
+
+type VersionResponse struct {
+	Version string `json:"version"`
+}