63 lines
1.9 KiB
JavaScript
63 lines
1.9 KiB
JavaScript
// Copyright IBM Corp. 2014,2016. All Rights Reserved.
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// Node module: loopback
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// This file is licensed under the MIT License.
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// License text available at https://opensource.org/licenses/MIT
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var path = require('path');
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var deprecated = require('depd')('loopback');
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var middlewares = exports;
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function safeRequire(m) {
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try {
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return require(m);
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} catch (err) {
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return undefined;
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}
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}
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function createMiddlewareNotInstalled(memberName, moduleName) {
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return function() {
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var msg = 'The middleware loopback.' + memberName + ' is not installed.\n' +
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'Run `npm install --save ' + moduleName + '` to fix the problem.';
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throw new Error(msg);
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};
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}
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var middlewareModules = {
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'compress': 'compression',
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'timeout': 'connect-timeout',
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'cookieParser': 'cookie-parser',
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'cookieSession': 'cookie-session',
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'csrf': 'csurf',
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'session': 'express-session',
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'methodOverride': 'method-override',
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'logger': 'morgan',
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'responseTime': 'response-time',
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'directory': 'serve-index',
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// 'static': 'serve-static',
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'vhost': 'vhost'
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};
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middlewares.bodyParser = safeRequire('body-parser');
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middlewares.json = middlewares.bodyParser && middlewares.bodyParser.json;
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middlewares.urlencoded = middlewares.bodyParser && middlewares.bodyParser.urlencoded;
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['bodyParser', 'json', 'urlencoded'].forEach(function(name) {
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if (!middlewares[name]) return;
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middlewares[name] = deprecated.function(
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middlewares[name],
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deprecationMessage(name, 'body-parser'));
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});
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for (var m in middlewareModules) {
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var moduleName = middlewareModules[m];
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middlewares[m] = safeRequire(moduleName) || createMiddlewareNotInstalled(m, moduleName);
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deprecated.property(middlewares, m, deprecationMessage(m, moduleName));
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}
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function deprecationMessage(accessor, moduleName) {
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return 'loopback.' + accessor + ' is deprecated. ' +
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'Use `require(\'' + moduleName + '\');` instead.';
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}
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