CODEWITHSUNDEEP
javascriptnode.jscloud-foundryexpress
user699242
user699242

Reputation: 1833

Node.js app, Express and Cloud Foundry

I am using out of the box expressjs app, and I'm using node 0.8.2. Works great locally, but when I push to the Cloud Foundry I get the following error, and I have no idea where to start with debugging. I'm assuming that this is caused by a configuration issue or a dependency issue, but I don't know what to do.

Express 500 TypeError: Object # has no method 'randomBytes' at Object.uid (/var/vcap/data/dea/apps/dwgapp1-0-690016dc6c7142f385b44b144d3d380e/app/node_modules/express/node_modules/connect/lib/utils.js:122:17) at MemoryStore.generate (/var/vcap/data/dea/apps/dwgapp1-0-690016dc6c7142f385b44b144d3d380e/app/node_modules/express/node_modules/connect/lib/middleware/session.js:203:27) at generate (/var/vcap/data/dea/apps/dwgapp1-0-690016dc6c7142f385b44b144d3d380e/app/node_modules/express/node_modules/connect/lib/middleware/session.js:281:13) at Object.session [as handle] (/var/vcap/data/dea/apps/dwgapp1-0-690016dc6c7142f385b44b144d3d380e/app/node_modules/express/node_modules/connect/lib/middleware/session.js:290:7) at next (/var/vcap/data/dea/apps/dwgapp1-0-690016dc6c7142f385b44b144d3d380e/app/node_modules/express/node_modules/connect/lib/proto.js:190:15) at Object.cookieParser [as handle] (/var/vcap/data/dea/apps/dwgapp1-0-690016dc6c7142f385b44b144d3d380e/app/node_modules/express/node_modules/connect/lib/middleware/cookieParser.js:60:5) at next (/var/vcap/data/dea/apps/dwgapp1-0-690016dc6c7142f385b44b144d3d380e/app/node_modules/express/node_modules/connect/lib/proto.js:190:15) at Object.methodOverride [as handle] (/var/vcap/data/dea/apps/dwgapp1-0-690016dc6c7142f385b44b144d3d380e/app/node_modules/express/node_modules/connect/lib/middleware/methodOverride.js:37:5) at next (/var/vcap/data/dea/apps/dwgapp1-0-690016dc6c7142f385b44b144d3d380e/app/node_modules/express/node_modules/connect/lib/proto.js:190:15) at multipart (/var/vcap/data/dea/apps/dwgapp1-0-690016dc6c7142f385b44b144d3d380e/app/node_modules/express/node_modules/connect/lib/middleware/multipart.js:62:61)

    var express = require('express')
       , routes = require('./routes')
       , user = require('./routes/user')
       , http = require('http')
       , path = require('path');

    var app = express();

    app.configure(function(){
       app.set('port', process.env.VCAP_APP_PORT || 3000);
       app.set('views', __dirname + '/views');
       app.set('view engine', 'ejs');
       app.use(express.favicon());
       app.use(express.logger('dev'));
       app.use(express.bodyParser());
       app.use(express.methodOverride());
       app.use(express.cookieParser('your secret here'));
       app.use(express.session());
       app.use(app.router);
       app.use(require('stylus').middleware(__dirname + '/public'));
       app.use(express.static(path.join(__dirname, 'public')));
    });

    app.configure('development', function(){
       app.use(express.errorHandler());
    });

    app.get('/', routes.index);
    app.get('/users', user.list);

    http.createServer(app).listen(app.get('port'), function(){
       console.log("Express server listening on port " + app.get('port'));
    });

Upvotes: 3

Views: 1318

Answers (2)

Seraphim
Seraphim

Reputation: 21

You can use vmc logs app-name, With the error message displayed.

I encountered the same question with you.

The reason is the default nodejs version is too old for my app,

Just vmc delete app first,

Create new one with newest nodejs, vmc push app-name --runtime node08

Upvotes: 2

user699242
user699242

Reputation: 1833

It seems that this issue was caused by connect, a dependency of express. I had originally created my app using express running on node 0.8.8, and CF was using 0.8.2. Even though I it didn't seem to make a difference locally, when I deployed to Cloud Foundry I was getting this error.

I created an entirely new app, running Node 0.8.2 from the beginning. This seemed to fix the issue.

Upvotes: 2

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