错误：函数崩溃。详细信息：connect ECONNREJECT /cloudsql/<instance Connection Name>>

Question

我无法将云函数连接到云SQL数据库，面临这样的问题

我用来连接数据库的代码：

var mysql = require('mysql');
exports.mysql = function handler(req, res) {
var c = mysql.createConnection({
socketPath: '/cloudsql/' + 'instance Connection Name',
user: 'root',
password: 'lns12345',
database: 'Sample'
});
c.connect();
c.query('SELECT * from user', req.body.user, function(e, results) {
//made reply here
if (results) {
console.log('Database succeed')
} else {
console.log('new error created')
}
console.log('my E result is :', e)
console.log('My results is :', results)
});
};

我收到的错误：

Error: function crashed. Details:
connect ECONNREFUSED /cloudsql/'instance Connection Name'

我在云函数中获得的详细日志：

Error: connect ECONNREFUSED /cloudsql/'instance connection Name' at
Object.exports._errnoException (util.js:1020:11) at
exports._exceptionWithHostPort (util.js:1043:20) at
PipeConnectWrap.afterConnect [as oncomplete] (net.js:1105:14)
-------------------- at Protocol._enqueue (/user_code/node_modules/mysql/lib/protocol/Protocol.js:145:48) at
Protocol.handshake
(/user_code/node_modules/mysql/lib/protocol/Protocol.js:52:23) at
Connection.connect
(/user_code/node_modules/mysql/lib/Connection.js:130:18) at handler
(/user_code/index.js:20:4) at /var/tmp/worker/worker.js:684:7 at
/var/tmp/worker/worker.js:668:9 at _combinedTickCallback
(internal/process/next_tick.js:73:7) at process._tickDomainCallback
(internal/process/next_tick.js:128:9)

Answer 1

> 将占位符'instance Connection Name'替换为实际的连接名称