Description: File upload in Express.js refers to the ability of web applications built with this framework to receive and process files sent by users through forms or HTTP requests. This process is facilitated by specialized middleware, such as ‘multer’, which handles multipart/form-data, a type of encoding used to send files. File upload is essential in many web applications as it allows users to upload images, documents, and other types of files, enriching the interaction and functionality of the applications. This middleware not only manages file reception but also offers options for validation, storage, and manipulation, ensuring that files are efficiently integrated into the application’s workflow. Implementing file uploads in Express.js is relatively straightforward, making it a popular choice among developers looking to build robust and dynamic applications. Additionally, the flexibility of Express.js allows for customizing file handling according to the specific needs of each project, making it even more appealing for modern web application development.
