What is MIME type "application/x-jackson-smile"?

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

application/x-jackson-smile is a binary format for encoding JSON-like data. It uses the Smile data format from the Jackson library to pack information in a smaller, faster-to-read form.
It minimizes data size and accelerates processing, especially in Java-based applications.

Compact Encoding: Converts traditional JSON to a binary representation.
Performance Boost: Enhances parsing speed and reduces memory usage.
Efficient Data Exchange: Ideal for network communication and high-performance systems.

Files using this MIME type are stored with the extension SML.
It's used wherever efficient serialization and quick data transmission are needed.
For more details, visit the Smile Format repository on GitHub.

Associated file extensions

.sml

Usage Examples

HTTP Header

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


    Content-Type: application/x-jackson-smile

HTML

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


    <a href="file.dat" type="application/x-jackson-smile">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-jackson-smile');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.sml

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.