express.js app.get（'/ images / 1.gif'...问题

Question

我有以下代码，这是我正在尝试构建的快速应用程序的一部分：

app.get('/stat/1.gif', function( req, res ) {
    var time = +new Date();
    var origin;
    res.writeHead(200, {'Content-Type': 'image/gif'});
    origin = /\/(.*)\.gif/.exec(req.url);
    console.log(origin);
    if (origin) {
        var ip = req.ip;
        if (ip === null || ip === "127.0.0.1") {
            ip = "82.246.239.187";
        }
        location = geoip.lookup(ip);
        console.log(location);
        var obj;
        console.log(location.city);
        console.log(location.ll[1]);
        console.log(location.ll[0]);
        obj = {
            city: location.city
            ,longitude: location.ll[1]
            ,latitude: location.ll[0]
            ,ip: ip
            ,timestamp: time
        };
        console.log(obj);
    everyone.now.receiveLocation(obj);
    } else {
        console.log( 'fixme no origin' );
    }
});

查看console.log（）我得到的是obj

{ city: 'Nîmes',
  longitude: 4.3596,
  latitude: 43.8338,
  ip: '82.246.239.187',
  timestamp: 1359930392288 }

但我一直收到这个错误：

TypeError: Property 'receiveLocation' of object #<Object> is not a function
    at /Users/khinester/Documents/Tutorials/Node/Blade/server.js:188:18
    at callbacks (/Users/khinester/Documents/Tutorials/Node/Blade/node_modules/express/lib/router/index.js:161:37)
    at param (/Users/khinester/Documents/Tutorials/Node/Blade/node_modules/express/lib/router/index.js:135:11)
    at pass (/Users/khinester/Documents/Tutorials/Node/Blade/node_modules/express/lib/router/index.js:142:5)
    at Router._dispatch (/Users/khinester/Documents/Tutorials/Node/Blade/node_modules/express/lib/router/index.js:170:5)
    at Object.router (/Users/khinester/Documents/Tutorials/Node/Blade/node_modules/express/lib/router/index.js:33:10)
    at next (/Users/khinester/Documents/Tutorials/Node/Blade/node_modules/express/node_modules/connect/lib/proto.js:199:15)
    at resume (/Users/khinester/Documents/Tutorials/Node/Blade/node_modules/express/node_modules/connect/lib/middleware/static.js:60:7)
    at SendStream.error (/Users/khinester/Documents/Tutorials/Node/Blade/node_modules/express/node_modules/connect/lib/middleware/static.js:73:37)
    at SendStream.EventEmitter.emit (events.js:115:20)

我正在使用https://github.com/bluesmoon/node-geoip

我使用https://github.com/kuno/GeoIP时使用了以下代码：

app.get('/stat/1.gif', function( req, res, next ) {
    var time = +new Date();
    var origin;
    res.writeHead(200, {'Content-Type': 'image/gif'});
    origin = /\/(.*)\.gif/.exec(req.url);
    if (origin) {
        var ip = req.headers['x-real-ip'];
        if (ip === null || ip === "127.0.0.1") {
            ip = "82.246.239.187";
        }
        city.lookup(ip, function(err, location) {
            var obj;
            if ( !err && location ) {
                obj = {
                    city: location.city
                    ,longitude: location.longitude
                    ,latitude: location.latitude
                    ,ip: ip
                    ,timestamp: time
                };
            } else { 
                console.log( 'server fake location' );
                obj ={ 
                    city: 'Bexleyheath',
                    longitude: 0.15000000596046448,
                    latitude: 51.45000076293945,
                    ip: '86.173.61.119',
                    timestamp: 1343054092459 
                };
            }
            everyone.now.receiveLocation(obj);
            console.log(obj);
        });
    console.log(origin[1], req.connection.remoteAddress, req.headers['user-agent']);
    } else {
        console.log( 'fixme no origin' );
    }
});

这个工作正常，但我需要使用geoip-lite作为我想要热的主机，这里没有geoip c库。

任何建议都非常感激。