- #QUICK NODE EXPRESS SERVER HOW TO#
- #QUICK NODE EXPRESS SERVER INSTALL#
- #QUICK NODE EXPRESS SERVER CODE#
Read more about REST APIs and other APIs. In the following, we are going to implement such REST API for our Express server application, but first let's get to know the tooling that enables us to interact with a REST API. Servers that don't follow the REST architecture a 100% are rather called RESTish than RESTful. A server application that offers a REST API is also called a RESTful server. It's an architecture that leverages the HTTP protocol to enable communication between a client and a server application. However, the most popular one is called REST defined in 2000 by Roy Fielding. How do client and server applications communicate with each other? Over the years, there existed a few popular communication interfaces ( APIs) between both entities. #QUICK NODE EXPRESS SERVER HOW TO#
That's the theory behind client-server architectures and how to relate to them. If you want to answer the client-server question if someone asks you what role an entity plays in a client-server architecture, always ask yourself who (server) is serving whom (client) and who (client) consumes whom's (backend) functionalities? Whereas a frontend application is usually something seen in the browser, a backend usually performs business logic that shouldn't be exposed in a browser and often connects to a database as well.
These terms cannot be exchanged that easily. However, don't mistake client application always for frontend and server application always for backend here.
#QUICK NODE EXPRESS SERVER CODE#
Both entities result in a client-server architecture (frontend and backend relationship) whereas the backend would be needed for (A) business logic that shouldn't be exposed as source code to the frontend application - otherwise it would be accessible in the browser - or for (B) establishing connections to third-party data sources (e.g.
Part 2: How to setup Express.js in Node.jsĪn Express application is most often used as a backend application in a client-server architecture whereas the client could be written in React.js or another popular frontend solution and the server could be written in Express. Part 1: The minimal Node.js with Babel Setup. This tells express that we are using pug as our template engine.This tutorial is part 3 of 3 in this series. I’ve already included the pug package in our project dependencies so we can go ahead and use it in express.Īdd the following code to your server.js file below the app variable. I’ll be using Pug here because I’m comfortable with the syntax but you can do the tutorial in another templating engine if you wish. Pug, Mustache, and EJS are some of the most popular ones. There are several template engines you can use with Express. We can author the HTML files by hand and specify what file to send to the browser once a GET request hits a route, but it’s almost always better to use a template engine to generate HTML files on the fly.Ī template engine allows you to define templates for your application and replace the variables in the template with actual values at runtime while transforming the template to an actual HTML file which is then sent to the client. Instead of just sending text to the browser when someone hits a route, we can send some HTML as most websites do. Now the web server will be restarted automatically everytime you make a change. You can view the version of Node and npm you have installed by running the following commands in your terminal:Īpp. The versions I used while building this project are as follows: #QUICK NODE EXPRESS SERVER INSTALL#
You can search the web for instructions on how to install Node.js and npm for your preferred platform or visit the Node.js website ( npm comes with Node).
Before you continue though, you need to have Node.js and npm installed. If you know JavaScript but you have never done any server-side programming before, this tutorial for you. I believe this tutorial will be particularly helpful if you already have some experience with JavaScript on the frontend. I decided to write this introductory tutorial for anyone who is interested in learning Node after realising that it’s not so easy to read the documentation and figure out how to go about building stuff with Node. Recently, I decided to learn Node.js properly and do some server-side programming as well.
Updated on AugHow to Build Your First Node.js Website with Express and Pugįor most of my career as a Web Developer, I worked on the frontend of websites and applications consuming APIs made by other people.
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