169 lines
3.5 KiB
JavaScript
169 lines
3.5 KiB
JavaScript
/*!
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* Module dependencies.
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*/
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var express = require('express')
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, proto = require('./application')
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, fs = require('fs')
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, ejs = require('ejs')
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, path = require('path')
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, merge = require('util')._extend
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, assert = require('assert');
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/**
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* Main entry for LoopBack core module. It provides static properties and
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* methods to create models and data sources. The module itself is a function
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* that creates loopback `app`. For example,
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*
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* ```js
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* var loopback = require('loopback');
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* var app = loopback();
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* ```
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*
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* @class loopback
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* @header loopback
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*/
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var loopback = exports = module.exports = createApplication;
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/**
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* Framework version.
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*/
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loopback.version = require('../package.json').version;
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/**
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* Expose mime.
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*/
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loopback.mime = express.mime;
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/*!
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* Create an loopback application.
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*
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* @return {Function}
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* @api public
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*/
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function createApplication() {
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var app = express();
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merge(app, proto);
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app.loopback = loopback;
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// Create a new instance of models registry per each app instance
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app.models = function() {
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return proto.models.apply(this, arguments);
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};
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// Create a new instance of datasources registry per each app instance
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app.datasources = app.dataSources = {};
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// Create a new instance of connector registry per each app instance
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app.connectors = {};
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// Register built-in connectors. It's important to keep this code
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// hand-written, so that all require() calls are static
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// and thus browserify can process them (include connectors in the bundle)
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app.connector('memory', loopback.Memory);
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app.connector('remote', loopback.Remote);
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return app;
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}
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function mixin(source) {
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for (var key in source) {
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var desc = Object.getOwnPropertyDescriptor(source, key);
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// Fix for legacy (pre-ES5) browsers like PhantomJS
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if (!desc) continue;
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Object.defineProperty(loopback, key, desc);
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}
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}
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mixin(require('./runtime'));
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mixin(require('./registry'));
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/*!
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* Expose static express methods like `express.errorHandler`.
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*/
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mixin(express);
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/*!
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* Expose additional middleware like session as loopback.*
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* This will keep the loopback API compatible with express 3.x
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*
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* ***only in node***
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*/
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if (loopback.isServer) {
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var middlewares = require('./express-middleware');
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mixin(middlewares);
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}
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/*!
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* Expose additional loopback middleware
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* for example `loopback.configure` etc.
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*
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* ***only in node***
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*/
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if (loopback.isServer) {
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fs
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.readdirSync(path.join(__dirname, 'middleware'))
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.filter(function (file) {
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return file.match(/\.js$/);
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})
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.forEach(function (m) {
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loopback[m.replace(/\.js$/, '')] = require('./middleware/' + m);
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});
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}
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/*!
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* Error handler title
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*/
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loopback.errorHandler.title = 'Loopback';
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/**
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* Add a remote method to a model.
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* @param {Function} fn
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* @param {Object} options (optional)
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*/
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loopback.remoteMethod = function (fn, options) {
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fn.shared = true;
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if(typeof options === 'object') {
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Object.keys(options).forEach(function (key) {
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fn[key] = options[key];
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});
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}
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fn.http = fn.http || {verb: 'get'};
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};
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/**
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* Create a template helper.
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*
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* var render = loopback.template('foo.ejs');
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* var html = render({foo: 'bar'});
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*
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* @param {String} path Path to the template file.
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* @returns {Function}
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*/
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loopback.template = function (file) {
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var templates = this._templates || (this._templates = {});
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var str = templates[file] || (templates[file] = fs.readFileSync(file, 'utf8'));
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return ejs.compile(str);
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};
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/*!
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* Built in models / services
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*/
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require('./builtin-models')(loopback);
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