discount/internal/server/grpc.go
2023-07-04 04:04:31 +00:00

73 lines
1.9 KiB
Go

package server
import (
"context"
"fmt"
"net"
grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
grpc_logrus "github.com/grpc-ecosystem/go-grpc-middleware/logging/logrus"
grpc_recovery "github.com/grpc-ecosystem/go-grpc-middleware/recovery"
"github.com/sirupsen/logrus"
"google.golang.org/grpc"
"penahub.gitlab.yandexcloud.net/pena-services/accruals-service/internal/core"
"penahub.gitlab.yandexcloud.net/pena-services/accruals-service/internal/proto/discount"
)
type GRPC struct {
logger *logrus.Entry
grpc *grpc.Server
}
func NewGRPC(logger *logrus.Logger) *GRPC {
grpcLogger := logrus.NewEntry(logger)
grpcStreamInterceptor := grpc.StreamInterceptor(grpc_middleware.ChainStreamServer(
grpc_logrus.StreamServerInterceptor(grpcLogger),
grpc_recovery.StreamServerInterceptor(),
))
grpcUnaryInterceptor := grpc.UnaryInterceptor(grpc_middleware.ChainUnaryServer(
grpc_logrus.UnaryServerInterceptor(grpcLogger),
grpc_recovery.UnaryServerInterceptor(),
))
return &GRPC{
grpc: grpc.NewServer(grpcStreamInterceptor, grpcUnaryInterceptor),
logger: grpcLogger,
}
}
func (receiver *GRPC) Run(config *core.GRPCConfiguration) {
connectionString := fmt.Sprintf("%s:%s", config.Host, config.Port)
receiver.logger.Infof("Starting GRPC Server on %s", connectionString)
if err := receiver.listen(connectionString); err != nil && err != grpc.ErrServerStopped {
receiver.logger.Errorf("GRPC Listen error: %v", err)
panic(err)
}
}
func (receiver *GRPC) Register(server discount.DiscountServiceServer) *GRPC {
discount.RegisterDiscountServiceServer(receiver.grpc, server)
return receiver
}
func (receiver *GRPC) listen(address string) error {
listener, err := net.Listen("tcp", address)
if err != nil {
return err
}
return receiver.grpc.Serve(listener)
}
func (receiver *GRPC) Stop(_ context.Context) error {
receiver.grpc.GracefulStop()
receiver.logger.Infoln("Shutting down GRPC server...")
return nil
}