What is MIME type "application/x-fictionbook"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

application/x-fictionbook is a MIME type used for e-book files in the FictionBook format.

This type is designed for files that follow a specific XML-based structure. It organizes text, images, and metadata in a clear, semantic way. The XML foundation makes it easy to transform, update, or repurpose the content.

Files using this MIME type include those with formats like FB2 and FB3. They are popular in the e-book community for smooth reading experiences across various devices.

Efficient Parsing: The XML structure helps software read and render content easily.
Content Organization: Information such as chapters, sections, and metadata are clearly defined.
Transformability: The format can be converted into other digital formats with minimal effort.

For more detailed information on MIME types, consider checking resources like Mozilla Developer Network.

Associated file extensions

.fb2, .fb3

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: application/x-fictionbook

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="application/x-fictionbook">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'application/x-fictionbook');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.fb2, .fb3

FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.