A piece of code to upload a file to a remote server using HTTP POST with request.js

FileUpload.js

/* 
 * Node.js file upload using request.js, the example
 * Does not work in Node.js v0.12.x yet @2015-03-05 using request.js@2.35.1
 * Usage : node FileUpload.js /my/path/to/file.txt http://mysite/upload 10 3000
 */

var fs			= require("fs"),
    request		= require("request"),
    filepath    	= process.argv[2],
    targetUrl   	= process.argv[3],
    gretries    	= parseInt(process.argv[4], 10) || 3,
    interval    	= parseFloat(process.argv[5]) || 1000;

if (isNaN(gretries)) {
    gretries = Infinity;
}
/*
 * Request will automatically put correct content-type
 * This function will also retrying for gretries times with interval interval if the upload process got failed
 */
 function fileUpload(retries, interval) {
	fs.createReadStream(filepath)
		.pipe(
			request
				.post(targetUrl, function postHandler(err, res, body) {
					if (err) {
						process.stderr.write("Error : ", err);
						process.stderr.write("Exiting...");
						process.exit(1);
						return;
					}
					if (res.statusCode !== 200) {
						process.stdout.write("There is a server error, retrying...");
						if (retries <= 0) {
							process.stderr.write("Failed in " + gretries + " retries, there is a persistent connection or server error: exitting...");
							process.exit(1);
							return;
						}
						setTimeout(fileUpload, interval, retries, interval);
						return;
					}
					process.stdout.write("Uploading file " + filepath + " to " + targetUrl + " success");
					process.exit(0);
				});
		);
}

fileUpload(gretries, interval);