One of the most common scenarios in any web application is uploading a file or a folder to the server. For example, if we are developing a job portal, then we may have to provide an option where the applicant can upload their profile/resume, or, let's say, we have to develop an e-commerce website with a feature where the customer can upload their orders in bulk using a file. 

Achieving the functionality to upload a file in Go is quite easy using its built-in packages, which we will be covering in this recipe.