node . js http 2 server response . addtraines()方法
原文:https://www . geeksforgeeks . org/node-js-http2 server response-addtraines-method/
http2 ServerResponse . addTracks()是 Http 2 模块中 Http2ServerRequest 类的内置应用程序编程接口，用于将 Http 尾部标头添加到响应中。
语法:
const response.addTrailers(headers)
参数:该方法接受表头字段名作为参数。
返回值:该方法返回请求网址字符串。
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:Filename:index . js
Javascript
// Node.js program to demonstrate the
// Http2ServerResponse.addTrailers() 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) => {
response.addTrailers({'Content-MD5':
'7895bf4b8828b55ceaf47747b4bca667'});
console.log(response)
};
// Creating and initializing server
// by using http2.createServer() method
const server = http2.createServer(
options, http2Handlers);
server.on('stream', (stream, requestheader) => {
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': '/name'
});
req.on('response', (responsesocket) => {
console.log("status : "
+ responsesocket[":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:
Http2ServerResponse {
_events: [Object: null prototype] {},
_eventsCount: 0,
...
...
...
corkedRequestsFree: {
next: null,
entry: null,
finish: [Function: bound onCorkedFinish]
}
}
}
}
status : 200
Received: hello
Received: priority weight : 16
client destroyed
server destroyed
示例 2:Filename:index . js
Javascript
// Node.js program to demonstrate the
// Http2ServerResponse.addTrailers() 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) => {
response.addTrailers({ 'Cookie-Setup':
['Alfa=Beta', 'Beta=Romeo'] });
console.log(response)
};
// Creating and initializing server
// by using http2.createServer() method
const server = http2.createServer(
options, http2Handlers);
server.on('stream', (stream, requestheader) => {
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': '/name'
});
req.on('response', (responsesocket) => {
console.log("status : "
+ responsesocket[":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:
Http2ServerResponse {
_events: [Object: null prototype] {},
_eventsCount: 0,
_maxListeners: undefined,
...
...
...
corkedRequestsFree: {
next: null,
entry: null,
finish: [Function: bound onCorkedFinish]
}
}
}
}
status : 200
Received: hello
Received: priority weight : 16
client destroyed
server destroyed
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