Node.js http。client request . writableended API
原文:https://www . geesforgeks . org/node-js-http-client request-writableend-API/
http。ClientRequest.writableEnded】是 http 模块内 ClientRequest 类的内置应用编程接口，用于检查 request.end() 是否被调用。
语法:
const request.writableEnded
参数:该 API 不接受任何参数作为参数。
返回值:当且仅当请求. end()被调用时，此方法返回真。
例 1:
index.js
// Node.js program to demonstrate the
// request.writableEnded APi
// Importing http module
const http = require('http');
// Create an HTTP server
const server = http.createServer((req, res) => {
res.writeHead(200, { 'Content-Type': 'text/plain' });
res.end('okay');
});
// Now that server is running
server.listen(3000, '127.0.0.1', () => {
// make a request
const options = {
port: 3000,
host: '127.0.0.1',
headers: {
'Connection': 'Upgrade',
'Upgrade': 'websocket'
}
};
// getting client request
const req = http.request(options);
// checking if the request.end() has been called
// by using writableEnded api
if(req.writableEnded)
console.log('request.end() has been called')
else
console.log('request.end() has not been called')
process.exit(0)
});
输出:
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