How to write/read files from Openshift file system?

Question

I was reading tons of post, but I don't get how to do. I need to write a file (an ASCII one) to the server and it will read in the client side afterwards . This process is meant to be done periodically. I can run it locally, saving the file to my own folder. I am using Node.js (fs module)

I know I have to put the file under the "data" folder. I don't get how to use the $OPENSHIFT_DATA_DIR environment variable to do that.

I appreciate some suggestions. Thanks a lot

Ro

Answer 1

You can access the data directory with environment variable process.env.OPENSHIFT_DATA_DIR in node. For example, writing to the file message.txt in data directory would be:

var fs = require('fs');

fs.writeFile(process.env.OPENSHIFT_DATA_DIR + 'message.txt', 'Hello Node', function (err) {
  if (err) throw err;
  console.log('It\'s saved!');
});