Node Roundup: cli, Mongolia, node-openid

12 Jan 2011 | By Alex Young | Tags node server mongo openid

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cli

cli (MIT License) by Chris O’Hara is a library for rapidly building Node command line applications. It includes an argument parser, plugin support for adding common options, helper methods to make it easier to work with IO and child processes, colours, progress bars, and auto-completion.

It’s on npm so it’s easily installed with npm install cli.

One of the examples is for sorting a file’s contents:

var cli = require('cli'), options = cli.parse();

cli.withStdinLines(function(lines, newline) {
    lines.sort(!options.n ? null : function(a, b) {
        return parseInt(a) > parseInt(b);
    });
    if (options.r) lines.reverse();
    this.output(lines.join(newline));
});

This supports -r and -n.

Mongolia

Mongolia by Pau Ramon Revilla is a wrapper for MongoDB with minimal magic. The examples the author gives use simple prototype classes:

var Post = function(db) {
  return Model(db, 'posts');
};

var Post = Post(db);

Post.createInstance({ title: 'This is a post' }, function(error, validator) {
  // Check validator if set up
});

The API includes methods for embedded objects and validation, so it should provide more bang for buck than the native driver.

It’s also worth pointing out that Mongoose’s 1.0 API looks simpler than the old one, introducing a new chaining-based API.

node-openid

node-openid (MIT License) by HÃ¥vard Stranden looks like a great library for OpenID. It supports OpenID 1.1/OpenID 2.0, has a very simple API, and seems much easier to use than the other OpenID libraries I’ve tried.

If you plan on using this library, note that:

To provide a way to save/load association state, you need to mix-in two functions in the openid module (saveAssociation, loadAssociation) … The openid module includes default implementations for these functions using a simple object to store the associations in-memory.

That means the callbacks could be replaced with custom callbacks to save to your favourite SQL or NoSQL databases.

The author has written a blog post about the project here: OpenID for Node.js.


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