Building Applications with NodeJs

An introduction to what NodeJs is and building web applications with it

Transcript

1. Building Web Applications with Node.Js September 26, 2019 Ruheni Alex
2. Objectives Gain familiarity with Express and how it fits in with Node. Gain understanding of functionality it provides. Building blocks of an Express application
3. Prerequisites • Node.js and npm installed • General understanding of server-side programming • Basic JavaScript knowledge
4. Let’s Get Started
5. What is Node.Js? It is not a FRAMEWORK!! An open-source, cross-platform, runtime environment environment that allows developers to create server-side applications in JavaScript.
6. Advantages Great performance - event-driven and scalable. Access to hundreds of thousands of reusable packages on NPM. Portable - available on any OS and many hosting platforms. Active third party ecosystem and developer community.
8. Express Fast, unopinionated, minimalist framework for Node.js. Used for building Web Applications, APIs because of its flexibility. **Opinionated - has fewer restrictions on how things should be done.
9. Provides methods to specify what function is called for particular HTTP verbs ( i.e. GET, POST, PATCH, DELETE) Provides route handlers Allows use of middleware (functions which have access to the request object) Any database mechanism is supported by Node (eg MongoDB, SQLite, PostgreSQL etc.) There are several templating engines supported i.e. Pug, Dust, Jade, Ejs etc.
10. Demo
12. Resources The following resources will help you get up and running as well as gain a deeper understanding of Node.Js and Express framework: 1. Express official site 2. Server-side programming with JavaScript - Mozilla Developer Network 3. NodeJs download 4. Demo Repository 5. Deployed demo
13. Thank you