/
grpc.go
81 lines (67 loc) · 2.38 KB
/
grpc.go
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package server
import (
"net"
"os"
"os/signal"
"syscall"
"github.com/rs/zerolog/log"
"github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/recovery"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
googleHealth "google.golang.org/grpc/health"
"google.golang.org/grpc/health/grpc_health_v1"
documentServiceApi "github.com/kinneko-de/api-contract/golang/kinnekode/restaurant/document/v1"
"github.com/kinneko-de/restaurant-document-generate-svc/internal/app/document"
"github.com/kinneko-de/restaurant-document-generate-svc/internal/app/operation/health"
"github.com/kinneko-de/restaurant-document-generate-svc/internal/app/operation/logger"
)
func StartGrpcServer(grpcServerStopped chan struct{}, grpcServerStarted chan struct{}, port string) {
listener, err := net.Listen("tcp", port)
if err != nil {
logger.Logger.Error().Err(err).Msgf("Failed to listen on port %v", port)
os.Exit(50)
}
grpcServer := configureGrpcServer()
healthServer := googleHealth.NewServer()
grpc_health_v1.RegisterHealthServer(grpcServer, healthServer)
health.Initialize(healthServer)
var gracefulStop = make(chan os.Signal, 1)
signal.Notify(gracefulStop, syscall.SIGTERM, syscall.SIGINT)
logger.Logger.Debug().Msg("starting grpc server")
go func() {
if err := grpcServer.Serve(listener); err != nil {
logger.Logger.Error().Err(err).Msg("failed to serve grpc server")
os.Exit(51)
}
}()
close(grpcServerStarted)
stop := <-gracefulStop
healthServer.Shutdown()
grpcServer.GracefulStop()
logger.Logger.Debug().Msgf("http server stopped. received signal %s", stop)
close(grpcServerStopped)
}
func configureGrpcServer() *grpc.Server {
// Handling of panic to prevent crash from example nil pointer exceptions
logPanic := func(p any) (err error) {
log.Error().Any("method", p).Err(err).Msg("Recovered from panic.")
return status.Errorf(codes.Internal, "Internal server error occured.")
}
opts := []recovery.Option{
recovery.WithRecoveryHandler(logPanic),
}
grpcServer := grpc.NewServer(
grpc.UnaryInterceptor(
recovery.UnaryServerInterceptor(opts...),
),
grpc.StreamInterceptor(
recovery.StreamServerInterceptor(opts...),
),
)
RegisterAllGrpcServices(grpcServer)
return grpcServer
}
func RegisterAllGrpcServices(grpcServer *grpc.Server) {
documentServiceApi.RegisterDocumentServiceServer(grpcServer, &document.DocumentServiceServer{})
}