Nodejs dependency injection

Yet another attempt to bring dependency injection into CommonJS

Installation

npm install injt

Usage

Inline module definition

var injector = require('injt')
    , Backbone = require('backbone');

injector.module('Model', function() {
  return Backbone.Model({});
});

injector.module('anotherLib', function(Model, lodash) {
  return {};
});

var Model = injector.inject('Model');
var model = new Model();
// Or in test
describe('Test', injector.inject(function(Model) {

}));

Use function name as module name

injector.module(function Model() {});
injector.inject('Model');

Module in its own file

// model.js
module.exports = function(lodash) {

}
// index.js
injector.module('Model', require('./model.js');

Use alias

injector.alias('_', 'lodash');

injector.module('Model', function(_) {

});

Auto discovery mode

Use this when you want to automatically discover all modules in a given directory. The injector will automatically use the file name as module name if you don't provide any function name.

injector.discover(__dirname);

Inject globally

Instead of calling injector.inject, you can also assign it to global

global.inject = injector.inject

TODO

• Improve documentations
• Write more unit tests
• Support event hook before/after initializing a module
• Support more parsers (CoffeeScript, TypeScript etc...)
• Support filtering hooks (for Babel and similar pre-processing libraries)

License

MIT