Middleware functions are mainly used to make changes in the request and response object. They are executed in sequence, one after another, but if a middleware functions does not pass control to the next one, the request is left hanging.
- Title Page
- Copyright and Credits
- Packt Upsell
- Contributors
- Preface
- Introduction to the MERN Stack
- Building a Web server with ExpressJS
- Technical requirements
- Introduction
- Routing in ExpressJS
- Modular route handlers
- Writing middleware functions
- Writing configurable middleware functions
- Writing router-level middleware functions
- Writing error-handler middleware functions
- Using ExpressJS' built-in middleware function for serving static assets
- Parsing the HTTP request body
- Compressing HTTP responses
- Using an HTTP request logger
- Managing and creating virtual domains
- Securing an ExpressJS web application with Helmet
- Using template engines
- Debugging your ExpressJS web application
- Building a RESTful API
- Technical requirements
- Introduction
- CRUD operations using ExpressJS' route methods
- CRUD operations with Mongoose
- Using Mongoose query builders
- Defining document instance methods
- Defining static model methods
- Writing middleware functions for Mongoose
- Writing custom validators for Mongoose's schemas
- Building a RESTful API to manage users with ExpressJS and Mongoose
- Real-Time Communication with Socket.IO and ExpressJS
- Managing State with Redux
- Technical requirements
- Introduction
- Defining actions and action creators
- Defining reducer functions
- Creating a Redux store
- Binding action creators to the dispatch method
- Splitting and combining reducers
- Writing Redux store enhancers
- Time traveling with Redux
- Understanding Redux middleware
- Dealing with asynchronous data flow
- Building Web Applications with React
- Technical requirements
- Introduction
- Understanding React elements and React components
- Composing components
- Stateful components and life cycle methods
- Working with React.PureComponent
- React event handlers
- Conditional rendering of components
- Rendering lists with React
- Working with forms and inputs in React
- Understanding refs and how to use them
- Understanding React portals
- Catching errors with error boundary components
- Type checking properties with PropTypes
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