如何使用 ExpressJS 保持持久的 Cloud Functions 连接

Question

const http = require('http');
const functions = require('firebase-functions');
const agent = new http.Agent({keepAlive: true});

exports.function = functions.https.onRequest((request, response) => {
    req = http.request({
        host: '',
        port: 80,
        path: '',
        method: 'GET',
        agent: agent,
    }, res => {
        let rawData = '';
        res.setEncoding('utf8');
        res.on('data', chunk => { rawData += chunk; });
        res.on('end', () => {
            response.status(200).send(`Data: ${rawData}`);
        });
    });
    req.on('error', e => {
        response.status(500).send(`Error: ${e.message}`);
    });
    req.end();
});

这是来自Optimizing networking using Cloud Functions 的代码。如何更新它以使用 expressJS。

所以从代码中我看到诀窍是这一行const agent = new http.Agent({keepAlive: true})，然后在请求中agent: agent。

我尝试做类似的事情

const server = express()

server.use((req, res, next) => {
    req.agent = new http.Agent({keepAlive: true})
    next()
})

但是没有用。救命！！！

Answer 1

只要穿上 index.js

require('https').globalAgent.keepAlive = true;