07 - Implement Root-Level Request Logger Middleware - Basic Node and Express - freeCodeCamp Tutorial
Channel: Ganesh H
Date: 2020-07-06

We can create our own Middleware functions to intercept routes. We can then work with the request and response as we wish, and then call the next() method to run the next route.

Link to challenge : https://www.freecodecamp.org/learn/apis-and-microservices/basic-node-and-express/implement-a-root-level-request-logger-middleware
Written Guide : https://www.notion.so/ganeshh123/Implement-a-Root-Level-Request-Logger-Middleware-9c9de36393bb41578840296f180beedf

Full Playlist for this course : https://www.youtube.com/playlist?list=PLhGp6N0DI_1SdIZ3uhbXnKAq2UcICSnWS
All Writen Guides for this course : https://www.notion.so/ganeshh123/dab5e189407244c793c2f32d066eee9f
All My Tutorials can be found at : https://www.notion.so/Tutorials-Ganesh-H-293ea420d34a464f9a1907e0405b5f26

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-middleware.html

request.path
Contains the path part of the request URL.
https://expressjs.com/en/api.html#req.path

request.method
Contains a string corresponding to the HTTP method of the request: GET, POST, PUT, and so on.
https://expressjs.com/en/api.html#req.method

request.ip
Contains the remote IP address of the request.
https://expressjs.com/en/api.html#req.ip

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.use

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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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