有没有更方便的方法将纯js对象映射到grcp响应类？

问题描述

这是RESTful API响应json：

{
    "success": true,"data": {
        "loginname": "mrdulin","avatar_url": "https://avatars1.githubusercontent.com/u/1147375?v=4&s=120","githubUsername": "mrdulin","create_at": "2012-09-09T05:26:58.319Z","score": 15835,"recent_topics": [
            {
                "id": "5c6d11d033b0b629ac8434ef","author": {
                    "loginname": "mrdulin","avatar_url": "https://avatars1.githubusercontent.com/u/1147375?v=4&s=120"
                },"title": "grpc and Node.js","last_reply_at": "2019-05-11T04:22:18.616Z"
            }
        ],"recent_replies": []
    }
}

UserServiceImpl.ts：

export class UserServiceImpl implements IUserServiceServer {
  public async getUserByLoginname(call: ServerUnaryCall<GetUserByLoginnameRequest>,callback: sendUnaryData<GetUserByLoginnameResponse>) {
    const loginname = call.request.getLoginname();
    const url = `${config.CNODE_API_URL}/user/${loginname}`;
    try {
      const res = await axios.get(url);
      const data = res.data.data;
      // map API response js plain object to GetUserByLoginnameResponse
      const grcpResponse = new GetUserByLoginnameResponse();
      grcpResponse.setSuccess(res.data.success);
      const user = new UserDetail();
      user.setAvatarUrl(data.avatar_url);
      user.setLoginname(data.loginname);
      user.setGithubusername(data.githubUsername);
      user.setCreateAt(data.create_at);
      user.setscore(data.score);
      const recentReplies = data.recent_replies.map((po) => {
        const reply = new RecentReply();
        reply.setId(po.id);
        reply.setTitle(po.title);
        const lastReplyAt = new google_protobuf_timestamp_pb.Timestamp();
        lastReplyAt.fromDate(new Date(po.last_reply_at));
        reply.setLastReplyAt(lastReplyAt);
        const author = new UserBase();
        author.setLoginname(po.author.loginname);
        author.setAvatarUrl(po.author.avatar_url);
        reply.setAuthor(author);
        return reply;
      });
      const recentTopics = data.recent_topics.map((po) => {
        const topic = new TopicBase();
        topic.setId(po.id);
        topic.setTitle(po.title);
        topic.setLastReplyAt(po.last_reply_at);
        const author = new UserBase();
        author.setLoginname(po.author.loginname);
        author.setAvatarUrl(po.author.avatar_url);
        topic.setAuthor(author);
        return topic;
      });
      user.setRecentRepliesList(recentReplies);
      user.setRecentTopicslist(recentTopics);
      grcpResponse.setData(user);
      callback(null,grcpResponse);
    } catch (error) {
      console.error(error);
      const Metadata = new Metadata();
      Metadata.set('url',url);
      const ErrGetUserByLoginname: ServiceError = {
        code: status.INTERNAL,name: 'getUserByLoginnameError',message: 'call CNode API Failed',Metadata,};
      callback(ErrGetUserByLoginname,null);
    }
  }
}

如您所见，我必须手动将普通的javascript对象（API响应）映射到GetUserByLoginnameResponse类。这麻烦且效率低下。

我正在使用静态代码生成器，因此GetUserByLoginnameResponse类是根据.proto文件中定义的IDL生成的。

user.service.proto：

service UserService {
  rpc GetUserByLoginname(GetUserByLoginnameRequest)
      returns (GetUserByLoginnameResponse);
}
message GetUserByLoginnameRequest { string loginname = 1; }
message GetUserByLoginnameResponse {
  UserDetail data = 1;
  bool success = 2;
}
message UserDetail {
  string loginname = 1;
  string avatar_url = 2;
  string githubUsername = 3;
  string create_at = 4;
  int32 score = 5;
  repeated share.TopicBase recent_topics = 6;
  repeated reply.RecentReply recent_replies = 7;
}

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。

小编邮箱:dio#foxmail.com (将#修改为@）