web server using nodejs for my angular app

Question

I am developing an angular app, i would like to run the app using web server using node.js as like angular-seed project https://github.com/angular/angular-seed. I copied the angular seed app in my local path and i run it as below

opened the command prompt

I just run the following command Node scripts\web-server.js in command prompt, see screenshot

enter image description here

then i check in the browser app is working correctly

enter image description here

Then i try to do the same for my test application, here what i did was, just created my own angular application and copied the web-server.js file into the scripts folder of my test application as shown in the screenshot below.

enter image description here

Then i do the following steps opened the command prompt

then I just run the following command Node scripts\web-server.js in command prompt, see screenshot

but what i got was see the screen shot

enter image description here

I would like to run my app as like angular-seed app in webserver using node.js.

My Index.html is

<!Doctype html>
<html data-ng-app>
<head>
    <meta charset="UTF-8">
    <title>angular JS directive demo</title>
    <script src="angular.js"></script>
</head>
<body>
    Name:
    <input type="text" data-ng-model="name" /> {{ name }}
    <div class="container" data-ng-init="names=['aaa','bbb','ccc']">
        <ul>
            <li ng-repeat="personName in names"> {{ personName }}</li>
        </ul>
    </div>

</body>
</html>

Web-server.js. This file i copied from angular-seed project.

#!/usr/bin/env node

var util = require('util'),
    http = require('http'),
    fs = require('fs'),
    url = require('url'),
    events = require('events');

var DEFAULT_PORT = 8000;

function main(argv) {
  new HttpServer({
    'GET': createServlet(StaticServlet),
    'HEAD': createServlet(StaticServlet)
  }).start(Number(argv[2]) || DEFAULT_PORT);
}

function escapeHtml(value) {
  return value.toString().
    replace('<', '&lt;').
    replace('>', '&gt;').
    replace('"', '&quot;');
}

function createServlet(Class) {
  var servlet = new Class();
  return servlet.handleRequest.bind(servlet);
}

/**
 * An Http server implementation that uses a map of methods to decide
 * action routing.
 *
 * @param {Object} Map of method => Handler function
 */
function HttpServer(handlers) {
  this.handlers = handlers;
  this.server = http.createServer(this.handleRequest_.bind(this));
}

HttpServer.prototype.start = function(port) {
  this.port = port;
  this.server.listen(port);
  util.puts('Http Server running at http://localhost:' + port + '/');
};

HttpServer.prototype.parseUrl_ = function(urlString) {
  var parsed = url.parse(urlString);
  parsed.pathname = url.resolve('/', parsed.pathname);
  return url.parse(url.format(parsed), true);
};

HttpServer.prototype.handleRequest_ = function(req, res) {
  var logEntry = req.method + ' ' + req.url;
  if (req.headers['user-agent']) {
    logEntry += ' ' + req.headers['user-agent'];
  }
  util.puts(logEntry);
  req.url = this.parseUrl_(req.url);
  var handler = this.handlers[req.method];
  if (!handler) {
    res.writeHead(501);
    res.end();
  } else {
    handler.call(this, req, res);
  }
};

/**
 * Handles static content.
 */
function StaticServlet() {}

StaticServlet.MimeMap = {
  'txt': 'text/plain',
  'html': 'text/html',
  'css': 'text/css',
  'xml': 'application/xml',
  'json': 'application/json',
  'js': 'application/javascript',
  'jpg': 'image/jpeg',
  'jpeg': 'image/jpeg',
  'gif': 'image/gif',
  'png': 'image/png',
  'svg': 'image/svg+xml'
};

StaticServlet.prototype.handleRequest = function(req, res) {
  var self = this;
  var path = ('./' + req.url.pathname).replace('//','/').replace(/%(..)/g, function(match, hex){
    return String.fromCharCode(parseInt(hex, 16));
  });
  var parts = path.split('/');
  if (parts[parts.length-1].charAt(0) === '.')
    return self.sendForbidden_(req, res, path);
  fs.stat(path, function(err, stat) {
    if (err)
      return self.sendMissing_(req, res, path);
    if (stat.isDirectory())
      return self.sendDirectory_(req, res, path);
    return self.sendFile_(req, res, path);
  });
}

StaticServlet.prototype.sendError_ = function(req, res, error) {
  res.writeHead(500, {
      'Content-Type': 'text/html'
  });
  res.write('<!doctype html>\n');
  res.write('<title>Internal Server Error</title>\n');
  res.write('<h1>Internal Server Error</h1>');
  res.write('<pre>' + escapeHtml(util.inspect(error)) + '</pre>');
  util.puts('500 Internal Server Error');
  util.puts(util.inspect(error));
};

StaticServlet.prototype.sendMissing_ = function(req, res, path) {
  path = path.substring(1);
  res.writeHead(404, {
      'Content-Type': 'text/html'
  });
  res.write('<!doctype html>\n');
  res.write('<title>404 Not Found</title>\n');
  res.write('<h1>Not Found</h1>');
  res.write(
    '<p>The requested URL ' +
    escapeHtml(path) +
    ' was not found on this server.</p>'
  );
  res.end();
  util.puts('404 Not Found: ' + path);
};

StaticServlet.prototype.sendForbidden_ = function(req, res, path) {
  path = path.substring(1);
  res.writeHead(403, {
      'Content-Type': 'text/html'
  });
  res.write('<!doctype html>\n');
  res.write('<title>403 Forbidden</title>\n');
  res.write('<h1>Forbidden</h1>');
  res.write(
    '<p>You do not have permission to access ' +
    escapeHtml(path) + ' on this server.</p>'
  );
  res.end();
  util.puts('403 Forbidden: ' + path);
};

StaticServlet.prototype.sendRedirect_ = function(req, res, redirectUrl) {
  res.writeHead(301, {
      'Content-Type': 'text/html',
      'Location': redirectUrl
  });
  res.write('<!doctype html>\n');
  res.write('<title>301 Moved Permanently</title>\n');
  res.write('<h1>Moved Permanently</h1>');
  res.write(
    '<p>The document has moved <a href="' +
    redirectUrl +
    '">here</a>.</p>'
  );
  res.end();
  util.puts('301 Moved Permanently: ' + redirectUrl);
};

StaticServlet.prototype.sendFile_ = function(req, res, path) {
  var self = this;
  var file = fs.createReadStream(path);
  res.writeHead(200, {
    'Content-Type': StaticServlet.
      MimeMap[path.split('.').pop()] || 'text/plain'
  });
  if (req.method === 'HEAD') {
    res.end();
  } else {
    file.on('data', res.write.bind(res));
    file.on('close', function() {
      res.end();
    });
    file.on('error', function(error) {
      self.sendError_(req, res, error);
    });
  }
};

StaticServlet.prototype.sendDirectory_ = function(req, res, path) {
  var self = this;
  if (path.match(/[^\/]$/)) {
    req.url.pathname += '/';
    var redirectUrl = url.format(url.parse(url.format(req.url)));
    return self.sendRedirect_(req, res, redirectUrl);
  }
  fs.readdir(path, function(err, files) {
    if (err)
      return self.sendError_(req, res, error);

    if (!files.length)
      return self.writeDirectoryIndex_(req, res, path, []);

    var remaining = files.length;
    files.forEach(function(fileName, index) {
      fs.stat(path + '/' + fileName, function(err, stat) {
        if (err)
          return self.sendError_(req, res, err);
        if (stat.isDirectory()) {
          files[index] = fileName + '/';
        }
        if (!(--remaining))
          return self.writeDirectoryIndex_(req, res, path, files);
      });
    });
  });
};

StaticServlet.prototype.writeDirectoryIndex_ = function(req, res, path, files) {
  path = path.substring(1);
  res.writeHead(200, {
    'Content-Type': 'text/html'
  });
  if (req.method === 'HEAD') {
    res.end();
    return;
  }
  res.write('<!doctype html>\n');
  res.write('<title>' + escapeHtml(path) + '</title>\n');
  res.write('<style>\n');
  res.write('  ol { list-style-type: none; font-size: 1.2em; }\n');
  res.write('</style>\n');
  res.write('<h1>Directory: ' + escapeHtml(path) + '</h1>');
  res.write('<ol>');
  files.forEach(function(fileName) {
    if (fileName.charAt(0) !== '.') {
      res.write('<li><a href="' +
        escapeHtml(fileName) + '">' +
        escapeHtml(fileName) + '</a></li>');
    }
  });
  res.write('</ol>');
  res.end();
};

// Must be last,
main(process.argv);

Please help me in this. Thanks in advance for any help.

Did you copy some portion of the code from somewhere? Probably different encoding system. Try to make sure the quotes are all the same. — JofryHS
– JofryHS, Commented Oct 3, 2013 at 14:39
@JofryHS I copied web-server.js from the angular-seed project github.com/angular/angular-seed. — Mohamed Hussain
– Mohamed Hussain, Commented Oct 4, 2013 at 5:48

Tolio · Accepted Answer · 2014-02-18 18:32:47Z

4

It is explained on angular-seed GitHub page, just scroll a little bit.

Install node.js, open cmd and run node scripts/web-server.js

Then navigate your browser to http://localhost:<port>/app/index.html to see the app running in your browser.

Source: https://github.com/angular/angular-seed#how-to-use-angular-seed

answered Feb 18, 2014 at 18:32

Tolio

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