[英]Sending multiple JSON data in HTTP2 from client to server in Node.js
[英]Sending and receiving JSON in Node HTTP2 streams
我正在使用 HTTP2 在 Node 中構建身份驗證微服務。
如何正確地將 JSON 寫入 Node HTTP2 流並從中讀取它?
文檔給出了這些示例:
const http2 = require('http2');
const fs = require('fs');
const server = http2.createSecureServer({
key: fs.readFileSync('localhost-privkey.pem'),
cert: fs.readFileSync('localhost-cert.pem')
});
server.on('error', (err) => console.error(err));
server.on('stream', (stream, headers) => {
// stream is a Duplex
stream.respond({
'content-type': 'text/html',
':status': 200
});
stream.end('<h1>Hello World</h1>');
});
server.listen(8443);
和
const http2 = require('http2');
const fs = require('fs');
const client = http2.connect('https://localhost:8443', {
ca: fs.readFileSync('localhost-cert.pem')
});
client.on('error', (err) => console.error(err));
const req = client.request({ ':path': '/' });
req.on('response', (headers, flags) => {
for (const name in headers) {
console.log(`${name}: ${headers[name]}`);
}
});
req.setEncoding('utf8');
let data = '';
req.on('data', (chunk) => { data += chunk; });
req.on('end', () => {
console.log(`\n${data}`);
client.close();
});
req.end();
假設我有一個JSON
對象,我想將它寫入客戶端中的流並從服務器中的流中讀取,反之亦然。 我該如何正確執行此操作?
我可以將我的JSON
字符串化為str
並使用request.write(str, 'utf-8)
,但這是最佳方式嗎? 我如何在另一端監聽 JSON 以處理它?
服務器...
const http2 = require('http2');
const fs = require('fs');
const server = http2.createSecureServer({
key: fs.readFileSync('localhost-privkey.pem'),
cert: fs.readFileSync('localhost-cert.pem')
});
server.on('error', (err) => {
console.error(err)
});
server.on('stream', (stream, headers) => {
// stream is a Duplex
// headers[:path] is the normal request from browser. A path url.
console.log("Request from client: " + headers[:path]);
req.on("data", (data) => {
console.log("Data from HTTPS2 client(event): " + data);
// It is just the data from 'POST' method.
});
stream.respond({
'content-type': 'text/html',
':status': 200
});
stream.end('<h1>Hello World</h1> Or a string, other data, wherever you want...');
});
server.listen(8443);
客戶端。 可以是“GET”或“POST”方法中的 XHR 請求。 服務器端是一樣的。 要使用“GET”模式,請使用 method = GET 並刪除“req.end('XXX any string.bla, bla, bla');”
const http2 = require('http2');
const fs = require('fs');
const client = http2.connect('https://localhost:8443', {
ca: fs.readFileSync('localhost-cert.pem')
});
client.on('error', (err) => {
console.error(err)
});
//':method': 'GET/POST' Can be just one.
const req = client.request({ ':method': 'POST', ':path': '/' });
req.on('response', (headers, flags) => {
for (const name in headers) {
console.log(`${name}: ${headers[name]}`);
}
});
req.setEncoding('utf8');
let data = '';
//Data from HTTPS2 server.
req.on('data', (chunk) => {
data += chunk;
});
req.on('end', () => {
console.log(`\n${data}`);
client.close();
});
//Only for POST method.
req.end("The data you want to send. String, JSON, buffer whatever...");
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