What is MIME type "application/sparql-results+json"?

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

application/sparql-results+json indicates that the data is in the SPARQL query results format encoded as JSON. It tells programs that the content follows a specific structure used for SPARQL responses.

SPARQL is a query language for RDF data. The JSON output makes it easy for software to parse and work with the results. This format is popular in semantic web applications and linked data tools.

Main use: delivering SPARQL query results in a lightweight, machine-friendly JSON structure.
Other uses: data interchange between semantic web services, debugging query responses, and integrating datasets from various sources.

Files carrying this MIME type often use the extension SRJ.

For more technical details, visit the W3C SPARQL 1.1 Results JSON specification.

Associated file extensions

.srj

Usage Examples

HTTP Header

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


    Content-Type: application/sparql-results+json

HTML

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


    <a href="file.dat" type="application/sparql-results+json">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/sparql-results+json');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.srj

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.