Uploading Files to Rails Applications
Learn to create a file upload functionality in our Rails app
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Our application may allow users to upload files. For example, a bug-reporting system might let users attach log files and code samples to a problem ticket, or a blogging application could let its users upload a small image to appear next to their articles.
In HTTP, files are uploaded as a multipart/form-data POST message. As the name suggests, forms are used to generate this type of message. Within that form, you’ll use <input> tags with type="file". When rendered by a browser, this allows the user to select a file by name. When the form is subsequently submitted, the file or files will be sent back along with the rest of the form data.