Проміжні обробники третій сторін
Here are some Express middleware modules:
  - body-parser: previously 
express.bodyParser, json, and urlencoded.
  See also:
    
   
  - compression:  previously 
express.compress 
  - connect-image-optimus: Connect/Express middleware modules for optimal image serving. Switches images to 
.webp or .jxr, if possible. 
  - connect-timeout: previously 
express.timeout 
  - cookie-parser: previously 
express.cookieParser 
  - cookie-session: previously 
express.cookieSession 
  - errorhandler: previously 
express.errorHandler 
  - express-debug: unobtrusive development tool that adds a tab with information about template variables (locals), current session, useful request data, and more to your application.
 
  - express-partial-response: Express middleware module for filtering-out parts of JSON responses based on the 
fields query-string; by using Google API’s Partial Response. 
  - express-session: previously 
express.session 
  - express-simple-cdn: Express middleware module for using a CDN for static assets, with multiple host support (For example: cdn1.host.com, cdn2.host.com).
 
  - express-slash: Express middleware module for people who are strict about trailing slashes.
 
  - express-stormpath: Express middleware module for user storage, authentication, authorization, SSO, and data security.
 
  - express-uncapitalize: middleware module for redirecting HTTP requests containing uppercase to a canonical lowercase form.
 
  - helmet: module to help secure your apps by setting various HTTP headers.
 
  - join-io: module for joining files on the fly to reduce the requests count.
 
  - method-override: previously 
express.methodOverride 
  - morgan:  previously 
logger 
  - passport: Express middleware module for authentication.
 
  - response-time: previously 
express.responseTime 
  - serve-favicon: previously 
express.favicon 
  - serve-index: previously 
express.directory 
  - serve-static: module for serving static content.
 
  - static-expiry: fingerprinted URLs or Caching Headers for static assets including support for one or more external domains.
 
  - vhost: previously 
express.vhost 
  - view-helpers: Express middleware module that provides common helper methods to the views.
 
  - sriracha-admin: Express middleware module that dynamically generates an admin site for Mongoose.
 
Some middleware modules previously included with Connect are no longer supported by the Connect/Express team. These modules are replaced by an alternative module, or should be superseded by a better module. Use one of the following alternatives:
  - express.cookieParser
    
  
 
  - express.limit
    
  
 
  - express.multipart
    
  
 
  - express.query
    
  
 
  - express.staticCache
    
  
 
For more middleware modules, see: