CODEWITHSUNDEEP
javascriptmysqlnode.jsphpmyadmin
Naeem Shaikh
Naeem Shaikh

Reputation: 15725

Error while connecting to mysql database in openshift via node js app

I have a node js app with express which is deployed on openshift. I have created databases via phpmyadmin 4.0 cartridge. I am able to connect to the database but when I make any query it throws error ECONNREFUSED.

I got this error as a response on my browser which is as follows, 

{"status":false,"error":{"code":"ECONNREFUSED","errno":"ECONNREFUSED","syscall":"connect","fatal":true}}

the code for my app is like this,

       var connection =  mysql.createConnection({
         host     : process.env.OPENSHIFT_MYSQL_DB_HOST,
         user     : process.env.OPENSHIFT_MYSQL_DB_USERNAME,
         password : process.env.OPENSHIFT_MYSQL_DB_PASSWORD,
         database : process.env.OPENSHIFT_GEAR_NAME

  });
    connection.connect();


    console.log("connected to login database");
    var strQuery="insert into login values('"+req.body.uname+"','"+req.body.password+"','"+req.body.name+"','"+req.body.mobile+"');";
     connection.query( strQuery, function(err){
    if(err) {
        res.json({
                 "status":false,
                 "error":err
                });
        res.end();
    }else{

        res.json({"status":true });
        res.end();

    }
  });


 connection.end();

I found an answer here connect ECONNREFUSED - node js , sql

but I can only access my database through phpmyadmin 4.0, How do I solve this ?

Upvotes: 1

Views: 1045

Answers (2)

Naeem Shaikh
Naeem Shaikh

Reputation: 15725

I was only adding the host name, now I added the port

    var connection =  mysql.createConnection({
         host     : process.env.OPENSHIFT_MYSQL_DB_HOST,
port :process.env.OPENSHIFT_MYSQL_DB_PORT,
         user     : process.env.OPENSHIFT_MYSQL_DB_USERNAME,
         password : process.env.OPENSHIFT_MYSQL_DB_PASSWORD,
         database : process.env.OPENSHIFT_GEAR_NAME

  });

and a restart worked for me.

Upvotes: 1

brennebeck
brennebeck

Reputation: 450

EDIT: The answer below is not entirely valid, as restarting the application solved the issue, but my hope is that the below may help someone else with a similar issue.

Goto your Application console, click the nodejs application, add the mysql cartridge there. Once you do you should get access to the vars. I suspect you created a separate application for mysql, rather than adding it to the existing node one.

I was able to print all the vars out by creating a simple express route in the default nodejs application cartridge: 

self.routes['/vars'] = function(req, res) {
    var html = "<html><body>Host: " + process.env.OPENSHIFT_MYSQL_DB_HOST + "<br />";
    html += "Port: " + process.env.OPENSHIFT_MYSQL_DB_PORT + "<br />";
    html += "User: " + process.env.OPENSHIFT_MYSQL_DB_USERNAME + "<br />";
    html += "Pass: " + process.env.OPENSHIFT_MYSQL_DB_PASSWORD + "<br />";
    html += "Sock: " + process.env.OPENSHIFT_MYSQL_DB_SOCK + "<br />";
    html += "URL: " + process.env.OPENSHIFT_MYSQL_DB_URL + "<br />";
    html += "</body></html>"
    res.send(html);
}

Hitting http://<openshift_application_url>/vars returned (this will be different for you):

Host: 127.6.20.2
Port: 3306
User: adminPAkSHvw
Pass: d7DX9ATPh4uG
Sock: undefined
URL: mysql://adminPAkSHvw:[email protected]:3306/

The complete server.js is here in case you want to try just copy/paste. If the MySQL cartridge exists within your node+express app, you'll get the vars printed out and then your code should work.

Upvotes: 3

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