node.js - Redis Heroku Node.JS 连接被拒绝

Question

我正在观看 CodeSchool“Soup to Bits”截屏视频，将一个简单的 node.js + redis 应用程序部署到 Heroku，他们在截屏视频中提供的内容对我不起作用。简单地尝试让应用程序使用 redistogo 连接到 redis。这是我正在使用的代码，在错误下方:

// Redis connection
var redis = require('redis');
if (process.env.REDISTOGO_URL) {
    // production
    var rtg = require("url").parse(process.env.REDISTOGO_URL);
    var client = redis.createClient(rtg.port, rtg.hostname);
    client.auth(rtg.auth.split(":")[1]);
} else {
    // development
    var client = redis.createClient();
    client.select((process.env.NODE_ENV || 'development').length);
}

错误信息:

2015-02-09T10:52:58.078927+00:00 heroku[web.1]: State changed from crashed to starting
2015-02-09T10:53:00.725321+00:00 heroku[web.1]: Starting process with command `./bin/www`
2015-02-09T10:53:03.121072+00:00 app[web.1]: running on port: 18964
2015-02-09T10:53:03.122834+00:00 app[web.1]: 
2015-02-09T10:53:03.123151+00:00 app[web.1]:         throw er; // Unhandled 'error' event
2015-02-09T10:53:03.125748+00:00 app[web.1]:     at net.js:441:14
2015-02-09T10:53:03.125746+00:00 app[web.1]:     at Socket.emit (events.js:95:17)
2015-02-09T10:53:03.122926+00:00 app[web.1]: events.js:72
2015-02-09T10:53:03.125737+00:00 app[web.1]: Error: Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED
2015-02-09T10:53:03.123188+00:00 app[web.1]:               ^
2015-02-09T10:53:03.125743+00:00 app[web.1]:     at RedisClient.on_error (/app/node_modules/redis/index.js:196:24)
2015-02-09T10:53:03.125745+00:00 app[web.1]:     at Socket.<anonymous> (/app/node_modules/redis/index.js:106:14)
2015-02-09T10:53:03.125749+00:00 app[web.1]:     at process._tickCallback (node.js:442:13)
2015-02-09T10:53:03.910186+00:00 heroku[web.1]: Process exited with status 8
2015-02-09T10:53:03.919708+00:00 heroku[web.1]: State changed from starting to crashed

谁能看到我错过了什么？

Answer 1

哈，这是第一次。问题是我没有用 Heroku 声明一个变量——我的信用卡。

需要进入我的 CC 以添加 Redis To Go 模块。