/
middleware.go
58 lines (47 loc) · 1.69 KB
/
middleware.go
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package flight_integration
import (
"context"
"google.golang.org/grpc"
"google.golang.org/grpc/metadata"
)
type testServerMiddleware struct{}
func (testServerMiddleware) StartCall(ctx context.Context) context.Context {
var val string
md, ok := metadata.FromIncomingContext(ctx)
if ok {
received := md.Get("x-middleware")
if len(received) > 0 {
val = received[0]
}
}
grpc.SetHeader(ctx, metadata.Pairs("x-middleware", val))
return nil
}
func (testServerMiddleware) CallCompleted(_ context.Context, _ error) {}
type testClientMiddleware struct {
received string
}
func (tm *testClientMiddleware) StartCall(ctx context.Context) context.Context {
return metadata.AppendToOutgoingContext(ctx, "x-middleware", "expected value")
}
func (tm *testClientMiddleware) HeadersReceived(_ context.Context, md metadata.MD) {
received := md.Get("x-middleware")
if len(received) > 0 {
tm.received = received[0]
}
}