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