Question

我试图通过socket.io在带有expressjs的打字稿编写节点服务器中使用web-socket。捆绑了webpack。

服务器代码如下所示：

import * as Express from "express";
import * as SocketIO from "socket.io";
import * as Http from "http";

const app = Express();

app.get("/", (reqest: Express.Request, response: Express.Response) => {
    response.sendFile(process.cwd() + "/dist/index.html");
});

app.use(Express.static("./dist/"));

const server = app.listen(3210, () => {
    console.log("Listening to port 3210");
});

const io = SocketIO.listen(server);

最后一行导致后面提到的问题。

相应的webpack.config.js：

module.exports = [
    {
        entry: "./server/main.ts",
        output: {
            path: "./dist",
            filename: "server.js"
        },
        debug: true,
        devtool: "source-map",
        module: {
            loaders: [
                {
                    test: /\.ts$/,
                    loader: "ts-loader"
                }
                , {
                    test: /\.json/,
                    loader: "json-loader"
                }
            ]
        },
        target: "node",
        node: {
            fs: "empty",
            net: "empty"
        }
        ts: {
            configFileName: 'server.tsconfig.json'
        }
    }
];

但最后webpack打印出以下警告：

  警告在./~/express/lib/view.js
中
关键依赖关系：

78：29-56依赖的请求是表达式

@ ./~/express/lib/view.js 78：29-56
     警告在./~/socket.io/~/engine.io/lib/server.js

关键依赖关系：

75：43-65依赖的请求是表达式

@ ./~/socket.io/~/engine.io/lib/server.js 75：43-65
     警告在./~/socket.io/~/engine.io/~/ws/lib/Validation.js

找不到模块：错误：无法在... \ node_modules \ socket.io \ node_modules \ engine.io \ node_modules \ ws \ lib
中解析模块'utf-8-validate'
@ ./~/socket.io/~/engine.io/~/ws/lib/Validation.js 10：19-44
     警告在./~/socket.io/~/engine.io/~/ws/lib/BufferUtil.js

找不到模块：错误：无法在... \ node_modules \ socket.io \ node_modules \ engine.io \ node_modules \ ws \ lib
中解析模块'bufferutil'
@ ./~/socket.io/~/engine.io/~/ws/lib/BufferUtil.js 10：19-40
     警告在./~/socket.io/~/socket.io-client/~/engine.io-client/~/ws/lib/Validation.js

找不到模块：错误：无法解析... \ node_modules \ socket.io \ node_modules \ socket.io-client \ node_modules \ engine.io-client \ node_modules \ ws \中的模块'utf-8-validate' LIB

@ ./~/socket.io/~/socket.io-client/~/engine.io-client/~/ws/lib/Validation.js 10：19-44
     警告在./~/socket.io/~/socket.io-client/~/engine.io-client/~/ws/lib/BufferUtil.js

找不到模块：错误：无法在... \ node_modules \ socket.io \ node_modules \ socket.io-client \ node_modules \ engine.io-client \ node_modules \ ws \ lib
@ ./~/socket.io/~/socket.io-client/~/engine.io-client/~/ws/lib/BufferUtil.js 10：19-40

进程以代码0终止。

运行server.js会导致：

fs.js：549返回binding.open（pathModule._makeLong（path），stringToFlags（flags），mode）;

TypeError：path必须是字符串

...

有谁知道我做错了什么？

Answer 1

import * as SocketIO from "socket.io";

应该是：

import SocketIO from "socket.io-client";

使用webpack

1 个答案: