SPARQL Blockly

SPARQL Blockly is an application for visualising and building SPARQL.

Usage

• Try it online
• Get the library from npm
• See the examples

Features

SPARQL Blockly implements the SPARQL grammar in Blockly.

It supports SPARQL 1.1 Query, Update and SPARQL*.

It enables several ways of visual interaction with SPARQL:

• Dragging blocks from a toolbox unto a canvas to assemble valid queries.
• Adding clauses and patterns to query blocks using a context menu.
• Parsing SPARQL query text into blocks.
• Collapsing/expanding parts of a query assemblage.
• Sharing URLs of visual representations.

SPARQL is parsed using SPARQL.js.

Repo structure

This code-base consists of three parts:

• npm package: Source-code for the JavaScript library hosted on npm.
• Demo app: Source-code for the demo application hosted on GitHub Pages.
• Examples: Example JavaScript source-code explaining how to use the library in the browser and in node.