使用Golang获取GRPC请求和响应头

import (
    "google.golang.org/grpc"
    "google.golang.org/grpc/metadata"
)

conn, err := grpc.Dial("server_address:port", grpc.WithInsecure())
if err != nil {
    // 处理连接错误
}
defer conn.Close()

client := pb.NewYourGRPCServiceClient(conn)

ctx := context.Background()
md := metadata.New(map[string]string{"key": "value"}) // 设置请求头
ctx = metadata.NewOutgoingContext(ctx, md)

response, err := client.YourGRPCMethod(ctx, &pb.YourRequest{})
if err != nil {
    // 处理请求错误
}

requestHeader, ok := metadata.FromOutgoingContext(ctx)
if ok {
    // 处理请求头
    for key, values := range requestHeader {
        // 遍历请求头
    }
}

responseHeader, ok := metadata.FromIncomingContext(ctx)
if ok {
    // 处理响应头
    for key, values := range responseHeader {
        // 遍历响应头
    }
}