node . js http 2 server request . headers 方法
原文:https://www . geesforgeks . org/node-js-http2 server request-headers-method/
http2 ServerRequest . headers是 Http 2 模块中 Http2ServerRequest 类的内置应用程序编程接口，用于获取请求/响应头对象。
语法:
const request.headers
参数:该方法不接受任何参数作为参数。
返回值:该方法返回请求/响应头对象。
如何生成私钥和公钥证书？
1。文件名:私钥
打开记事本，复制粘贴以下密钥，将文件保存为 私钥. PEMT0】
2。文件名:公共证书
打开记事本，复制粘贴以下密钥，将文件保存为 公共证书T0】
示例 1: 文件名:index . js
Javascript
// Node.js program to demonstrate the
// Http2ServerRequest.headers method
const http2 = require('http2');
const fs = require('fs');
// Private key and public certificate for access
const options = {
key: fs.readFileSync('private-key.pem'),
cert: fs.readFileSync('public-cert.pem'),
};
// Request and response handler
const http2Handlers = (request, response) => {{
// Getting headers of http2
// by using request.headers method
const auth = request.headers;
console.log(auth)
}};
// Creating and initializing server
// by using http2.createServer() method
const server = http2.createServer(options,http2Handlers);
server.on('stream', (stream, requestHeaders) => {
// Getting all information of this http2stream object
// by using state method
const status = stream.state;
stream.end("The sum weight of all Http2Stream : " +
status.sumDependencyWeight);
// Stopping the server
// by using the close() method
server.close(() => {
console.log("server destroyed");
})
});
server.listen(8000);
// Creating and initializing client
// by using tls.connect() method
const client = http2.connect('http://localhost:8000');
const req = client.request({
':method': 'GET', ':path': '/' });
req.on('data', (data) => {
console.log('Received: %s ',
data.toString().replace(/(\n)/gm,""));
});
req.on('end', () => {
client.close(() => {
console.log("client destroyed");
})
});
使用以下命令运行 index.js 文件:
node index.js
输出:
[Object: null prototype] {
':scheme': 'http',
':authority': 'localhost:8000',
':path': '/',
':method': 'GET'
}
Received: The sum weight of all Http2Stream : 0
client destroyed
server destroyed
示例 2: 文件名:index . js
Javascript
// Node.js program to demonstrate the
// Http2ServerRequest.headers method
const http2 = require('http2');
const fs = require('fs');
// Private key and public certificate for access
const options = {
key: fs.readFileSync('private-key.pem'),
cert: fs.readFileSync('public-cert.pem'),
};
// Request and response handler
const http2Handlers = (request, response) => {
// Getting headers of http2
// by using request.headers method
const auth = request.headers;
console.log(auth)
};
// Creating and initializing server
// by using http2.createServer() method
const server = http2.createServer(
options, http2Handlers);
server.on('stream', (stream, requestHeaders) => {
stream.respond({ ':status': 200, 'content-type':
'text/plain' });
stream.write('hello ');
// Getting all information of this http2stream object
// by using state method
const status = stream.state;
stream.end("priority weight : " + status.weight);
// Stopping the server
// by using the close() method
server.close(() => {
console.log("server destroyed");
})
});
server.listen(8000);
// Creating and initializing client
// by using tls.connect() method
const client = http2.connect('http://localhost:8000');
const req = client.request({
':method': 'GET', ':path': '/' });
req.on('response', (responseHeaders) => {
console.log("status : "
+ responseHeaders[":status"]);
});
req.on('data', (data) => {
console.log('Received: %s ',
data.toString().replace(/(\n)/gm,""));
});
req.on('end', () => {
client.close(() => {
console.log("client destroyed");
})
});
使用以下命令运行 index.js 文件:
node index.js
输出:
[Object: null prototype] {
':scheme': 'http',
':authority': 'localhost:8000',
':path': '/',
':method': 'GET'
}
status : 200
Received: hello
Received: priority weight : 16
client destroyed
参考:https://nodejs . org/dist/latest-v 12 . x/docs/API/https 2 . html # https 2 _ request _ headers
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