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kratos/examples/metadata/client/main.go

61 lines
1.4 KiB

package main
import (
"context"
"log"
"github.com/go-kratos/kratos/examples/helloworld/helloworld"
"github.com/go-kratos/kratos/v2/metadata"
"github.com/go-kratos/kratos/v2/middleware"
"github.com/go-kratos/kratos/v2/middleware/recovery"
"github.com/go-kratos/kratos/v2/transport/grpc"
"github.com/go-kratos/kratos/v2/transport/http"
grpcmd "google.golang.org/grpc/metadata"
)
func main() {
callHTTP()
callGRPC()
}
func callHTTP() {
conn, err := http.NewClient(
context.Background(),
http.WithMiddleware(
recovery.Recovery(),
),
http.WithEndpoint("127.0.0.1:8000"),
)
if err != nil {
panic(err)
}
client := helloworld.NewGreeterHTTPClient(conn)
md := metadata.New(map[string][]string{"kratos-extra": {"2233"}})
reply, err := client.SayHello(context.Background(), &helloworld.HelloRequest{Name: "kratos"}, http.Metadata(md))
if err != nil {
log.Fatal(err)
}
log.Printf("[http] SayHello %s\n", reply.Message)
}
func callGRPC() {
conn, err := grpc.DialInsecure(
context.Background(),
grpc.WithEndpoint("127.0.0.1:9000"),
grpc.WithMiddleware(
middleware.Chain(
recovery.Recovery(),
),
),
)
if err != nil {
log.Fatal(err)
}
client := helloworld.NewGreeterClient(conn)
ctx := grpcmd.AppendToOutgoingContext(context.Background(), "kratos-extra", "2233")
reply, err := client.SayHello(ctx, &helloworld.HelloRequest{Name: "kratos"})
if err != nil {
log.Fatal(err)
}
log.Printf("[grpc] SayHello %+v\n", reply)
}