What is MIME type "text/shex"?

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

The MIME type text/shex denotes a text format for writing ShEx schemas. ShEx stands for Shape Expressions and defines rules to validate RDF graphs.
This MIME type tells software that the file contains human-readable schema definitions. It uses a concise syntax to specify graph constraints and expected data patterns. The format is portable and easy to work with in text editors or automated tools.

Validation: It helps check that RDF data follows defined constraints.
Documentation: It serves as a clear specification of expected graph structures.
Interoperability: It allows semantic web tools to exchange and enforce data rules.

Files using this MIME type often have a SHEX extension.
For more details on the topic, you can review the official ShEx Specification.

Associated file extensions

.shex

Usage Examples

HTTP Header

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


    Content-Type: text/shex

HTML

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


    <a href="file.dat" type="text/shex">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', 'text/shex');    
      res.end('Content here');    
    }).listen(3000);

Associated file extensions

.shex

FAQs

What is the purpose of the text/shex MIME type?

The text/shex MIME type is used to identify files containing Shape Expressions (ShEx) in the Compact Syntax (ShexC). This format is designed to be human-readable and allows developers to define schemas for validating RDF graph data structures.

How do I configure Apache to serve .shex files correctly?

To ensure Apache serves the correct Content-Type, add the following line to your .htaccess file or main configuration: AddType text/shex .shex. This prevents browsers and tools from misinterpreting the file as generic plain text.

How do I add text/shex support to Nginx?

In your Nginx configuration, locate the mime.types file or the types block within your server config. Add the line text/shex shex; to associate the extension with the MIME type.

What is the difference between text/shex and application/shex+json?

text/shex represents the Compact Syntax (ShexC), which is optimized for human writing and reading. In contrast, application/shex+json represents the JSON Syntax (ShexJ), which is better suited for machine processing and programmatic exchange.

Can I open text/shex files in a standard text editor?

Yes, because the media type belongs to the text category, the underlying data is plain text. You can edit .shex files using tools like VS Code, Notepad++, or Sublime Text, often with available plugins for syntax highlighting.

Does text/shex relate to SHACL?

While both ShEx and SHACL are languages used to validate RDF graphs, they are distinct standards. text/shex is specific to Shape Expressions, whereas SHACL uses different serialization formats (often Turtle or JSON-LD) and does not use this specific MIME type.

General 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.