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Client for my gRPC server(ブログ公開用) https://nekonenene.hatenablog.com/entry/2019/02/17/073806
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package main | |
import ( | |
"context" | |
"go/build" | |
"log" | |
"os" | |
"strconv" | |
"time" | |
pb "nekonenene/hello/pb" | |
"google.golang.org/grpc" | |
"google.golang.org/grpc/credentials" | |
) | |
const ( | |
address = "grpc-test.hatone.net:443" | |
defaultName = "Kaname" | |
defaultAge = 20 | |
) | |
func main() { | |
certFile := build.Default.GOPATH + "/src/google.golang.org/grpc/roots.pem" | |
creds, err := credentials.NewClientTLSFromFile(certFile, "") | |
if err != nil { | |
log.Fatalf("failed to generate credentials: %v", err) | |
} | |
conn, err := grpc.Dial(address, grpc.WithTransportCredentials(creds)) | |
if err != nil { | |
log.Fatalf("did not connect: %v", err) | |
} | |
defer conn.Close() | |
c := pb.NewGreeterClient(conn) | |
name := defaultName | |
age := defaultAge | |
if len(os.Args) > 2 { | |
name = os.Args[1] | |
age, _ = strconv.Atoi(os.Args[2]) | |
} | |
ctx, cancel := context.WithTimeout(context.Background(), time.Second) | |
defer cancel() | |
r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name, Age: int32(age)}) | |
if err != nil { | |
log.Fatalf("could not get message: %v", err) | |
} | |
log.Printf("Got message: %s", r.Message) | |
} |
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