在服务器端c#上读取grpc中的元数据

using Grpc.Core;
using System.Collections.Generic;

public class MyService : MyService.MyServiceBase
{
    public override async Task<MyResponse> MyMethod(MyRequest request, ServerCallContext context)
    {
        // 读取请求中的元数据
        Metadata requestMetadata = context.RequestHeaders;
        Dictionary<string, string> requestMetadataDict = new Dictionary<string, string>();
        foreach (Metadata.Entry entry in requestMetadata)
        {
            requestMetadataDict.Add(entry.Key, entry.Value);
        }

        // TODO: 根据元数据进行相应的业务处理

        // 创建响应
        MyResponse response = new MyResponse
        {
            // 设置响应数据
        };

        // 添加响应中的元数据
        Metadata responseMetadata = new Metadata();
        responseMetadata.Add("key", "value");
        context.ResponseHeaders = responseMetadata;

        return response;
    }
}