node . js http 2 . getpackedsettings()方法
原文:https://www . geesforgeks . org/node-js-http2-getpackedsettings-method/
http2 . getpackedsettings()是 http2 模块中 HTTP 2 类的内置应用程序编程接口，用于提供一个对象，该对象包含 HTTP/2 规范中指定的给定 HTTP/2 设置的序列化表示。
语法:
const http2.getPackedSettings([settings])
参数:该方法以可选的 http2 设置为参数。
返回值:该方法返回一个对象，该对象包含 HTTP/2 规范中指定的给定 HTTP/2 设置的序列化表示。
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
// http2.getPackedSettings() 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'),
};
// Creating and initializing server
// by using http2.createServer() method
const server = http2.createServer(options);
// Getting packed setting
// by using getPackedSettings() method
const value = http2.getPackedSettings(
{ enablePush: false })
console.log("packed setting :- "
+ value.toString('base64'));
server.on('stream', (stream, requestHeaders) => {
stream.respond({ ':status': 200, 'content-type':
'text/plain' });
stream.write('hello ');
stream.end('world');
// Stopping the server
// by using the close() method
server.close(() => {
console.log("server closed");
})
});
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 closed");
})
});
使用以下命令运行 index.js 文件:
node index.js
输出:
packed setting :- AAIAAAAA
status : 200
Received: hello
Received: world
client closed
server closed
示例 2: 文件名:index . js
Javascript
// Node.js program to demonstrate the
// http2.getPackedSettings() 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'),
};
// Creating and initializing server
// by using http2.createServer() method
const server = http2.createServer(options);
// Getting packed setting
// by using getPackedSettings() method
const value = http2.getPackedSettings(
{ enablePush: true })
console.log("packed setting :- "
+ value.toString('base64'));
server.on('stream', (stream, requestHeaders) => {
stream.end('world');
// Stopping the server
// by using the close() method
server.close(() => {
console.log("server closed");
})
});
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 closed");
})
});
使用以下命令运行 index.js 文件:
node index.js
输出:
packed setting :- AAIAAAAB
Received: world
client closed
server closed
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