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[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 中构建身份验证微服务。
如何正确地将 JSON 写入 Node HTTP2 流并从中读取它?
文档给出了这些示例:
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();
假设我有一个JSON
对象,我想将它写入客户端中的流并从服务器中的流中读取,反之亦然。 我该如何正确执行此操作?
我可以将我的JSON
字符串化为str
并使用request.write(str, 'utf-8)
,但这是最佳方式吗? 我如何在另一端监听 JSON 以处理它?
服务器...
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);
客户端。 可以是“GET”或“POST”方法中的 XHR 请求。 服务器端是一样的。 要使用“GET”模式,请使用 method = GET 并删除“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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