http.ClientRequest.protocol是HTTP模塊中的ClientRequest類的內置應用程序編程接口,用於獲取客戶端請求協議的對象。
用法:
const request.protocol
參數:此函數不接受任何參數作為參數。
返回值:此方法返回客戶端請求協議的對象。
範例1:Filename-index.js
Javascript
// Node.js program to demonstrate the
// request.protocol method
// 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);
req.protocol = 'HTTP'
// Getting protocol
// by using protocol method
const v = req.protocol;
// Display the result
console.log("protocol:- " + v)
process.exit(0)
});
使用以下命令運行index.js文件:
node index.js
輸出:
protocol:- HTTP
示例2:Filename-index.js
Javascript
// Node.js program to demonstrate the
// request.protocol method
// Importing http module
const http = require('http');
// Create an HTTP server
http.createServer((req, res) => { })
.listen(3000, '127.0.0.1', () => {
// Getting cleint request
const req = http.request({
port:3000,
host:'127.0.0.1',
});
// Getting protocol
// by using protocol method
console.log("protocol:- " + req.protocol)
process.exit(0)
});
使用以下命令運行index.js文件:
node index.js
輸出:
protocol:- undefined
參考:https://nodejs.org/dist/latest-v12.x/docs/api/http.html#http_request_protocol
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注:本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 Node.js http.ClientRequest.protocol Method。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。