feat(gl): scaffold general ledger grpc service

application/health/service.go

@@ -0,0 +1,29 @@
+// Package health provides the service readiness use case.
+package health
+
+import "context"
+
+type Database interface {
+	Ping(context.Context) error
+}
+
+type Status struct {
+	Serving       bool
+	DatabaseReady bool
+}
+
+type Service struct {
+	database Database
+}
+
+func NewService(database Database) *Service {
+	return &Service{database: database}
+}
+
+func (s *Service) Check(ctx context.Context) Status {
+	status := Status{Serving: true}
+	if s.database != nil {
+		status.DatabaseReady = s.database.Ping(ctx) == nil
+	}
+	return status
+}