[英]Connecting to postgres on Heroku with Node.js
我尝试通过以下方式连接到Heroku上的postgres数据库:
var pg = require('pg');
pg.defaults.ssl = true;
var pool = new pg.Pool(process.env.DATABASE_URL);
pool.connect(function(err, client, done) {
if(err) {
return console.error('error fetching client from pool', err);
}
我已经确认了proccess.env.DATABASE_URL的值,它具有正确的格式,我可以通过psql postgres成功连接到它:// XXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-X。 XXXXXXXX
这是输出,如果这个输出,让我困惑的是127.0.0.1引用。
2016-06-27T14:58:52.714154+00:00 app[web.1]: Express server listening on port 18119
2016-06-27T14:59:29.175122+00:00 app[web.1]: error fetching client from pool { Error: connect ECONNREFUSED 127.0.0.1:5432
2016-06-27T14:59:29.175133+00:00 app[web.1]: at Object.exports._errnoException (util.js:949:11)
2016-06-27T14:59:29.175134+00:00 app[web.1]: at exports._exceptionWithHostPort (util.js:972:20)
2016-06-27T14:59:29.175135+00:00 app[web.1]: at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1080:14)
2016-06-27T14:59:29.175136+00:00 app[web.1]: code: 'ECONNREFUSED',
2016-06-27T14:59:29.175137+00:00 app[web.1]: errno: 'ECONNREFUSED',
2016-06-27T14:59:29.175137+00:00 app[web.1]: syscall: 'connect',
2016-06-27T14:59:29.175138+00:00 app[web.1]: address: '127.0.0.1',
2016-06-27T14:59:29.175139+00:00 app[web.1]: port: 5432 }
尝试这个:
var pg = require('pg').native
pg.connect(process.env.databaseURL, function (err, conn, done) {
...
}
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