nodejs 的express 接口内容相关问题记录
nodejs的 express 接口如何回复为html内容
代码如下
const express = require('express');
const app = express();
// Define a route to handle the HTML response
app.get('/html-response', (req, res) => {
// Set the Content-Type to text/html
res.setHeader('Content-Type', 'text/html');
// Send the HTML content as the response
res.send('<h1>Hello, this is HTML content!</h1>');
});
// Start the server
app.listen(3000, () => {
console.log('Server is running on port 3000');
});
当接口请求的是application/json 的 post请求时 nodejs 的express 如何接收参数?
npm install express body-parser
app.use(bodyParser.json());
const name = req.body.name;
node express 设置跨域资源共享 设置
npm install cors
const express = require('express');
const cors = require('cors');
const app = express();const corsOptions = {
origin: '*',
methods: '*',
allowedHeaders: '*',
};
app.use(cors(corsOptions));
如何对express 返回的json 都套一层统一的模板
创建一个中间件
// middleware function to wrap JSON responses
const wrapResponse = (req, res, next) => {
// Save the original res.json() function
const originalJson = res.json;
// Create a new res.json() function
res.json = function (data) {
// Wrap the response data in the desired template
const wrappedData = {
status: 'success',
data: data,
};
// Call the original res.json() function with the wrapped data
originalJson.call(this, wrappedData);
};
// Move to the next middleware or route handler
next();
};
module.exports = wrapResponse;
使用
// 统一对json返回加一层统一的状态码
const wrapResponse = require('./middleware/wrapResponse');
app.use(wrapResponse);
原文地址:https://blog.csdn.net/weixin_43575775/article/details/137828647
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