08 - Chain Middleware to Create a Time Server - Basic Node and Express - freeCodeCamp Tutorial

Veröffentlicht am: 06 Juli 2020
auf dem Kanal: Ganesh H

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Don't be an overconfident idiot like me, and you should be fine here!
We can avoid setting up multiple routes, and instead chain the middleware functions one after the other. When declaring a route, you can give as many arguments as you can, consisting of functions to be executed in order.

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Concepts:
Middleware
Middleware functions are functions that have access to the request object (req), the response object (res), and the next middleware function in the application’s request-response cycle. The next middleware function is commonly denoted by a variable named next.
http://expressjs.com/en/guide/using-m...

app.use()
Mounts the specified middleware function or functions at the specified path: the middleware function is executed when the base of the requested path matches path.
https://expressjs.com/en/api.html#app...

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Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser. Node.js lets developers use JavaScript to write command line tools and for server-side scripting—running scripts server-side to produce dynamic web page content before the page is sent to the user's web browser.

Express.js, or simply Express, is a web application framework for Node.js. It is designed for building web applications and APIs. It has been called the de facto standard server framework for Node.js. Express runs between the server created by Node.js and the frontend pages of a web application. Express also handles an application's routing.

freeCodeCamp (also referred to as “Free Code Camp”) is a non-profit organization that consists of an interactive learning web platform, an online community forum, chat rooms, online publications and local organizations that intend to make learning web development accessible to anyone. Beginning with tutorials that introduce students to HTML, CSS and JavaScript, students progress to project assignments that they complete either alone or in pairs. Upon completion of all project tasks, students are partnered with other nonprofits to build web applications, giving the students practical development experience.

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