-
Notifications
You must be signed in to change notification settings - Fork 0
/
server.go
88 lines (70 loc) · 1.81 KB
/
server.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
package grpc
import (
"context"
"errors"
"fmt"
"net"
"net/http"
"time"
"github.com/improbable-eng/grpc-web/go/grpcweb"
"go.uber.org/zap"
"google.golang.org/grpc"
"google.golang.org/grpc/reflection"
c "github.com/agurinov/gopl/patterns/creational"
)
type (
Server struct {
grpcListener net.Listener
logger *zap.Logger
grpcServer *grpc.Server
grpcServices map[*grpc.ServiceDesc]any
name string
shutdownTimeout time.Duration
grpcServerReflection bool
}
ServerOption c.Option[Server]
)
var NewServer = c.NewWithValidate[Server, ServerOption]
func (s Server) GRPC() *grpc.Server {
serviceInfo := s.grpcServer.GetServiceInfo()
if s.grpcServerReflection {
serviceName := "grpc.reflection.v1alpha.ServerReflection"
if _, registered := serviceInfo[serviceName]; !registered {
reflection.Register(s.grpcServer)
}
}
for desc, impl := range s.grpcServices {
if _, registered := serviceInfo[desc.ServiceName]; registered {
continue
}
s.grpcServer.RegisterService(desc, impl)
}
return s.grpcServer
}
func (s Server) GRPCWeb() http.Handler {
return grpcweb.WrapServer(s.GRPC())
}
func (s Server) ListenAndServe(context.Context) error {
s.logger.Info(
"starting grpc server",
zap.String("server_name", s.name),
zap.Stringer("server_address", s.grpcListener.Addr()),
)
switch err := s.GRPC().Serve(s.grpcListener); {
case err == nil:
case errors.Is(err, grpc.ErrServerStopped):
default:
return fmt.Errorf("server %q: can't listen: %w", s.name, err)
}
return nil
}
func (s Server) WaitForShutdown(ctx context.Context) error {
<-ctx.Done()
s.logger.Debug(
"shutting down grpc server",
zap.String("server_name", s.name),
zap.Stringer("server_address", s.grpcListener.Addr()),
)
s.GRPC().GracefulStop()
return nil
}