Organize backend into product executable and shared Go modules

backend/product/app/runtime/lifecycle.go

@@ -0,0 +1,31 @@
+package runtime
+
+import (
+	"context"
+
+	"git.sendico.io/tech/sxchnge/product/app/health/status"
+	"go.uber.org/zap"
+)
+
+func (a *APIImp) Finish(ctx context.Context) error {
+	a.health.SetStatus(health.SSTerminating)
+	a.health.Finish()
+	a.mw.Finish()
+	var lastError error
+	for i := len(a.services) - 1; i >= 0; i-- {
+		if err := (a.services[i]).Finish(ctx); err != nil {
+			lastError = err
+			a.logger.Warn("Error occurred when finishing service",
+				zap.Error(err), zap.String("service_name", (a.services[i]).Name()))
+		} else {
+			a.logger.Info("Microservice is down", zap.String("service_name", (a.services[i]).Name()))
+		}
+	}
+	if a.runtime.Finish != nil {
+		if err := a.runtime.Finish(a); err != nil {
+			lastError = err
+			a.logger.Warn("Error occurred when finishing runtime profile", zap.String("runtime", a.runtime.RuntimeName()), zap.Error(err))
+		}
+	}
+	return lastError
+}