如何在vue中使用grpc-web？

Question

我正在我的vue应用程序中尝试使用grpc-web客户端，如下所示：

import Vue from "vue";
import App from "./App.vue";
const { Registration, _ } = require("./identity-service_pb.js");
const {
  IdentityServicePromiseClient
} = require("./identity-service_grpc_web_pb.js");

const identityService = new IdentityServicePromiseClient(
  "http://localhost:9000"
);


const req = new Registration();
req.setGender("male");
req.setInterestList(["A", "B", "C"]);

console.log(req);
console.log(identityService);

identityService.signUp(req, {}).then(function(response) {
  console.log(response);
}).catch(function(error) {
  console.error(error);
});

Vue.config.productionTip = false;

new Vue({
  render: h => h(App)
}).$mount("#app");

当应用程序被编译时，编译器会抱怨：

error  in ./src/identity-service_pb.js

Module Error (from ./node_modules/eslint-loader/index.js):

/home/developer/js/identity-client/src/identity-service_pb.js
   27:1   error  'proto' is not defined      no-undef
   28:50  error  'proto' is not defined      no-undef
   30:15  error  'proto' is not defined      no-undef
   31:20  error  'COMPILED' is not defined   no-undef
   36:3   error  'proto' is not defined      no-undef
   48:1   error  'proto' is not defined      no-undef
   51:15  error  'proto' is not defined      no-undef
   52:20  error  'COMPILED' is not defined   no-undef
   57:3   error  'proto' is not defined      no-undef
   65:1   error  'proto' is not defined      no-undef
   82:1   error  'proto' is not defined      no-undef
   83:10  error  'proto' is not defined      no-undef
   96:1   error  'proto' is not defined      no-undef
  115:1   error  'proto' is not defined      no-undef
  117:17  error  'proto' is not defined      no-undef
  118:10  error  'proto' is not defined      no-undef
  129:1   error  'proto' is not defined      no-undef
  141:11  error  'value' is already defined  no-redeclare
  157:1   error  'proto' is not defined      no-undef
  159:3   error  'proto' is not defined      no-undef
  171:1   error  'proto' is not defined      no-undef
  194:1   error  'proto' is not defined      no-undef
  203:1   error  'proto' is not defined      no-undef
  212:1   error  'proto' is not defined      no-undef
  221:1   error  'proto' is not defined      no-undef
  231:1   error  'proto' is not defined      no-undef
  240:1   error  'proto' is not defined      no-undef
  261:1   error  'proto' is not defined      no-undef
  262:10  error  'proto' is not defined      no-undef
  275:1   error  'proto' is not defined      no-undef
  278:34  error  'proto' is not defined      no-undef
  294:1   error  'proto' is not defined      no-undef
  296:17  error  'proto' is not defined      no-undef
  297:10  error  'proto' is not defined      no-undef
  308:1   error  'proto' is not defined      no-undef
  320:11  error  'value' is already defined  no-redeclare
  320:23  error  'proto' is not defined      no-undef
  321:32  error  'proto' is not defined      no-undef
  337:1   error  'proto' is not defined      no-undef
  339:3   error  'proto' is not defined      no-undef
  351:1   error  'proto' is not defined      no-undef
  365:7   error  'proto' is not defined      no-undef
  375:1   error  'proto' is not defined      no-undef
  384:1   error  'proto' is not defined      no-undef
  393:1   error  'proto' is not defined      no-undef
  395:40  error  'proto' is not defined      no-undef
  403:1   error  'proto' is not defined      no-undef
  412:1   error  'proto' is not defined      no-undef
  421:1   error  'proto' is not defined      no-undef
  426:29  error  'proto' is not defined      no-undef

✖ 50 problems (50 errors, 0 warnings)

如您所见，编译器抱怨自动生成的文件identity-service_pb.js。

文件结构如下：

​

我做错了什么？

更新

我需要在vue应用程序和golang应用程序之间建立一个特使代理吗？

​

​

还是vue应用可以直接与golang应用进行通信？目前，我没有他们之间的特使代理。

Answer 1

您可能需要google-protobuf npm包吗？

Answer 2

我在Go中使用了react和gRPC，也许我可以回答您的问题：

• 是的，您确实需要一个特使- vue和您的grpc服务器之间的代理。特使将您的HTTP/1.1调用从浏览器转换为HTTP 2/调用，这些调用是gRPC handles
• 来解决编译器抱怨自动生成的文件的问题，您可以在文件的开头使用/*eslint-disable*/，您将绕过
• 来调用需要使用以下格式的gRPC方法：

service.method(req, metadata, callback)

所以在你的情况下，你可以做这样的事情：

identityService.signUp(req, {}, async (err, response) => { 
    const data = await response
    console.log(data)
    console.log(err)
})