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hapi-mol

Simple module loader plugin for hapi.js

Mol allows you to easily manage your app across multiple files. For a full guide see the examples.

Usage

var hapi   = require('hapi'),
    mol    = require('hapi-mol'),
    server = new hapi.Server({ debug: { request: ['error'] } });
 
server.connection({port: 8000});
server.register(mol, function (err){
    if (err) {
        throw err;
    }
 
    server.plugins.mol.load('controllers', function (path, base, ext, scope){
        var controller = require(path);
        server.route(controller);
    }).then(server.start.bind(server, function (err) {
        if (err) {
            console.error(err);
        } else {
            console.log('Server running at localhost:8000');
        }
    }));
});

Register mol as any other Hapi plugin. You can pass the following configuration when registering the plugin -

• base the base path from which each folder will be loaded default(./)
• tree if true the scope passed to the registerCb will be a node of the original scope relative to the internal path default(true)

Mol exposes a load method on server.plugins.mol. the load method recursively loads a folder under the base path You can pass the folowing parameters to the load method -

• loadPath - path to load files from
• scope (optional) - the scope object which will be passed to the register callback if flat is false scope will be relative to subfolders so when calling the register callback for 'base_path/foo/bar.js' scope will be scope['foo']
• registerCb - the callback that will be called for each file in loadPath
• `cb (optional) - callback to call once all files are loaded, since Mol uses promises you can leave it blank and just follow the promise chain

Since the load method return a Promise you don't have to pass a callback and you can just use the Promise chain.

registerCb is where the real magic should happen. Mol will call registerCb for each file under loadPath and will pass the following parameters -

• path' The load path of the current file under thelocalPath`
• `base' the base name of the file (no path no extension)
• `ext' the extension of the file
• `localScope' the scope node the file belongs to (if tree is false the root scope)
• parts Array of folders under loadPath where the file is located

If you prefer you can use Mol as a regular library instead of a hapi plugin. to do so Mol exposes a construction function you can use it as follows -

var mol  = require('hapi-mol'),
    load = mol({base: './', tree: true});
load('controllers', function (path, base, ext, scope){
    //...
}).then(server.start.bind(server, function (err) {
    //...
}));