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Detailed explanation of the steps to use express+http-proxy-middleware across domains
Detailed explanation of the steps to use express+http-proxy-middleware across domains
This time I will bring you a detailed explanation of the steps for using express http-proxy-middleware across domains on node. What are the precautions for using express http-proxy-middleware on node across domains? The following is a practical case. Get up and take a look.
Why use node proxy forwarding?
We want to separate the front-end and back-end, and then the front-end does not install tomcat on its own computer. At this time, we build a server with node and then forward our request. For example: our local host is localhost:3000, and we need to visit http://www.example.com (of course, during the development process, this should be the address of your backend tomcat) to do ajax data interaction.npm init
npm install express connect-timeout http-proxy-middleware --save-dev
<!--proxy-server.js-->
const express = require('express');
const timeout = require('connect-timeout');
const proxy = require('http-proxy-middleware');
const app = express();
// 超时时间
const TIME_OUT = 30 * 1e3;
// 设置端口
app.set('port', '80');
// 设置超时 返回超时响应
app.use(timeout(TIME_OUT));
app.use((req, res, next) => {
if (!req.timedout) next();
});
proxyOption = {
target: 'http://localhost:8080',
pathRewrite: {
'^/api/' : '/' // 重写请求，api/解析为/
},
changeOrigoin:true
};
// 静态资源路径
app.use('/', express.static('src/page'));
// 反向代理
app.use('/api/*', proxy(proxyOption));
// 监听端口
app.listen(app.get('port'), () => {
console.log(`server running @${app.get('port')}`);
});How to develop the verification code password input box function in the WeChat applet
How to use webpack3. 0Configure webpack-dev-server
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