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server.go
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server.go
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package test
import (
"context"
"fmt"
oldcontext "golang.org/x/net/context"
"github.com/go-kit/kit/endpoint"
grpctransport "github.com/go-kit/kit/transport/grpc"
"github.com/go-kit/kit/transport/grpc/_grpc_test/pb"
)
type service struct{}
func (service) Test(ctx context.Context, a string, b int64) (context.Context, string, error) {
return nil, fmt.Sprintf("%s = %d", a, b), nil
}
func NewService() Service {
return service{}
}
func makeTestEndpoint(svc Service) endpoint.Endpoint {
return func(ctx context.Context, request interface{}) (interface{}, error) {
req := request.(TestRequest)
newCtx, v, err := svc.Test(ctx, req.A, req.B)
return &TestResponse{
V: v,
Ctx: newCtx,
}, err
}
}
type serverBinding struct {
test grpctransport.Handler
}
func (b *serverBinding) Test(ctx oldcontext.Context, req *pb.TestRequest) (*pb.TestResponse, error) {
_, response, err := b.test.ServeGRPC(ctx, req)
if err != nil {
return nil, err
}
return response.(*pb.TestResponse), nil
}
func NewBinding(svc Service) *serverBinding {
return &serverBinding{
test: grpctransport.NewServer(
makeTestEndpoint(svc),
decodeRequest,
encodeResponse,
grpctransport.ServerBefore(
extractCorrelationID,
),
grpctransport.ServerBefore(
displayServerRequestHeaders,
),
grpctransport.ServerAfter(
injectResponseHeader,
injectResponseTrailer,
injectConsumedCorrelationID,
),
grpctransport.ServerAfter(
displayServerResponseHeaders,
displayServerResponseTrailers,
),
),
}
}