标签: google-protocol-buffer

鉴于以下json响应:

{
    "id" : "123456",
    "name" : "John Doe",
    "email" : "john.doe@example.com"
}

以下user.proto文件:

message User {
    string id = 1;
    string name = 2;
    string email = 3;
}

我想有可能动态创建protobuf消息类(在运行时编译.proto),这样如果json响应通过字段得到增强,"phone" : "+1234567890"我可以上传一个新版本的protobuf文件来包含string phone = 4并得到它protobuf响应中暴露的字段,没有重新启动服务.

如果我要从帽子中提取这些类,我希望能够在下面的代码中写一些东西.

import com.googlecode.protobuf.format.JsonFormat;
import com.googlecode.protobuf.Message;
import org.apache.commons.io.FileUtils;

...

public Message convertToProto(InputStream jsonInputStream){
    // get the latest user.proto file
    String userProtoFile = FileUtils.readFileToString("user.proto");

    Message userProtoMessage = com.acme.ProtobufUtils.compile(userProtoFile);
    Message.Builder builder = userProtoMessage.newBuilderForType(); 
    new JsonFormat().merge(inputStream, Charset.forName("UTF-8"), builder);
    return builder.build();
}

是否存在com.acme.ProtobufUtils.compile(...)方法？或者如何实现一个？运行protoc …

我正在尝试获取我的userDTO对象列表并将其转换为protobuf候选列表,但我无法弄清楚如何做到这一点

C#对象

public class UserDTO
  {
    public string UserNumber { get; set; }
    public string FirstName { get; set; }
    public string LastName  { get; set; }
    public string UserId { get; set; }
    public string EmailId { get; set; }
  }

protobuf的

 message Candidate {
     string userNumber = 1;
     string userId = 2;
     string firstName = 3;
     string lastName = 4;
     string emailId = 5;
    }

message CandidateList{
      repeated Candidate candidateList = 1;
}

列表功能(这是不完整的)

 public CandidateList GetUsersRpc()
     { …

I'm working on a project in which I need to analyze an image using Google's Vision API and post the response to a Dynamodb table.

I have successfully implemented the Vision API, but not able to convert its response into Python Dictionary.

Here's what I have tried:

       if form.is_valid():
            obj = form
            obj.imageFile = form.cleaned_data['imageFile']
            obj.textFile = form.cleaned_data['textFile']
            obj.save()
            print(obj.imageFile)
            # Process the image using Google's vision API
            image_path = os.path.join(settings.MEDIA_ROOT, 'images/', obj.imageFile.name)
            print(image_path)
            image = vision_image_manager(image_path)
            text_path = os.path.join(settings.MEDIA_ROOT, …

我有以下原型：

syntax = "proto3";

import "google/rpc/status.proto";

message Response {   
    google.rpc.Status status = 1;
}

message Request {   
    Type name = 1;
}

service Service {
    rpc SomeMethod (Request) returns (Response);
}

我在节点中编写一个客户端：

    const path = require('path');
    const grpc = require('grpc');
    const protoLoader = require('@grpc/proto-loader');
    const protoFiles = require('google-proto-files');

    const PROTO_PATH = path.join(__dirname, '/proto/myproto.proto');

    const packageDefinition = protoLoader.loadSync(
      PROTO_PATH,
      {
        keepCase: true,
        longs: String,
        enums: String,
        defaults: true,
        oneofs: true,
        includeDirs: [protoFiles('rpc')],
      },
    );

    const proto = grpc.loadPackageDefinition(packageDefinition);
    const client = …

我正在尝试为grpc-web. 我已经生成了协议缓冲区，我可以成功获取信息，但是我在创建请求时遇到了问题。

例如。

const request = new PricingMethodRequest()
request.setCurrencyId(64)
request.setId(0)
request.setFrequency(1)
request.setFromDate({ nanos: 0, seconds: 1555064508 }) // <--- Crashes on this line
...

TypeError: c.toArray is not a function当我尝试设置日期值时，似乎我一直在收到。甚至也是一个对象的价格值。

如何实现设置日期值或任何需要 JavaScript 对象的值？

编辑：

我在网上看到过一些我可以做这样的事情：

const fromDateAny = new proto.google.protobuf.Any.fromJavaScript({ nanos: 0, seconds: 1555064508 })
request.setFromDate(fromDateAny)

但是这样做给了我错误Cannot find name 'proto'。

如何在形成 protobuf 消息时将 .Net System.DateTime 转换为 google Protobuf TimeStamp？