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To create a backend app using Express.js that parses an Excel document and stores the data into a MySQL database hosted on AWS, you need to break down the task into several steps involving setting up the server, parsing the Excel file, and interacting with the MySQL database. Let's walk through each step with technical details and analogies.The Big PictureImagine you are building a system where ..

In this response, we'll compare NestJS and ExpressJS, two popular Node.js frameworks, focusing on their architectures, features, and use cases to help you understand which one might be better suited for your projects.The Big PictureImagine you need to build a house. ExpressJS is like having a set of basic tools: a hammer, nails, and wood. You can build a house, but you have to design and constru..

NestJS is a progressive Node.js framework for building efficient, reliable, and scalable server-side applications.The Big PictureThink of NestJS as a well-organized toolkit for building the backend of web applications. It's like having a well-structured blueprint for constructing a house, where every part has a specific place and function, ensuring everything fits together seamlessly.Core Concep..

Creating an API with Next.js that connects to an RDBMS in AWS and is packaged to deploy on an AWS EC2 instance involves several steps, including setting up the project, connecting to the database, and deploying the application.The Big PictureImagine you’re building a vending machine (your Next.js API) that needs to connect to a warehouse (your RDBMS in AWS) to check stock and prices. Once the ve..

An API route in Next.js is used to create serverless functions that handle backend logic, such as fetching data from a database or an external API, without the need for a separate backend server.The Big PictureImagine you have a vending machine (your application) that provides different types of snacks (data). An API route in Next.js acts like the internal mechanism of the vending machine, handl..

While templating engines like EJS are great for generating dynamic server-rendered HTML, React offers a more powerful and flexible approach to building interactive and dynamic user interfaces by utilizing client-side rendering and component-based architecture.The Big PictureThink of traditional templating engines as a well-organized library where you can find and read static books (server-render..

In an Express.js application, a templating engine generates HTML dynamically, allowing you to embed variables and logic within your HTML pages for dynamic content rendering.The Big PictureThink of a templating engine like a master chef who can prepare a variety of dishes (web pages) from a standard set of ingredients (data). Instead of creating static HTML pages for every possible outcome, the t..

To send a JSON response in Express.js, you can use the res.json() method, which sends a JSON response with the appropriate Content-Type header.The Big PictureImagine a restaurant serving food. The kitchen (server) prepares the food (data) and the waiters (Express.js) deliver it to the customers (clients). In this analogy, sending a JSON response is like presenting the food in a specific format t..

Middleware functions in Express.js are the backbone of handling requests and responses in a web application, enabling flexible and efficient request processing.The Big PictureImagine building a house. Middleware functions in Express.js are like different workers (plumbers, electricians, carpenters) that prepare the house at various stages before it's ready for the occupants (the users). Each wor..

To host a Next.js application on AWS S3, you'll use S3 for static hosting, CloudFront for CDN, and Route 53 for DNS management, ensuring a scalable and performant setup.The Big PictureHosting a Next.js application on AWS S3 is akin to setting up a library where books (your static files) are neatly organized for easy access. S3 is the bookshelf storing your files, CloudFront is the librarian who ..