# @traqula/algebra-sparql-1-2 > Convert SPARQL to SPARQL algebra Latest version **1.3.0** (published 2026-09-09) · MIT license · 0 weekly downloads ## Install ```sh npm install @traqula/algebra-sparql-1-2 pnpm add @traqula/algebra-sparql-1-2 yarn add @traqula/algebra-sparql-1-2 bun add @traqula/algebra-sparql-1-2 ``` ## Health **Score 55/100 (C)** — status: active. Positive: no vulnerabilities; recently updated; high maintenance score. Warnings: low downloads; no types; no esm support. ## Facts | | | |---|---| | Version | 1.3.0 | | Published | 2026-09-09 | | First published | 2025-09-02 | | Weekly downloads | 0 | | License | MIT | | TypeScript types | none | | Module format | CommonJS | | Dependencies | 0 | | Known vulnerabilities | 0 | | Install scripts | no | | GitHub stars | 24 | | Author | Jitse De Smet | | Maintainers | rubensworks, jitsedesmet | ## Links - npm: https://www.npmjs.com/package/@traqula/algebra-sparql-1-2 - Repository: https://github.com/comunica/traqula - Homepage: https://github.com/comunica/traqula#readme - Issues: https://github.com/comunica/traqula/issues - npm.io page: https://npm.io/package/@traqula/algebra-sparql-1-2 ## Recent versions - 1.3.0 (latest) — 2026-09-09 - 1.1.7-alpha.0 (next) — 2026-07-07 - 1.2.2 — 2026-09-02 - 1.2.1 — 2026-08-27 - 1.2.0 — 2026-08-05 - 1.1.8 — 2026-07-09 - 1.1.7 — 2026-07-07 - 1.1.6 — 2026-06-19 - 1.1.5 — 2026-06-18 - 1.1.4 — 2026-06-10 - 1.1.3 — 2026-06-09 - 1.1.2 — 2026-06-05 - 1.1.1 — 2026-05-09 - 1.1.0 — 2026-04-29 - 1.0.7 — 2026-04-16 - … 30 more at https://npm.io/package/@traqula/algebra-sparql-1-2/versions ## README

Traqula logo

A query language transpiler framework for JavaScript

# SPARQL 1.2 AST, SPARQL 1.2 Algebra transformer [![npm version](https://badge.fury.io/js/@traqula%2Falgebra-sparql-1-2.svg)](https://www.npmjs.com/package/@traqula/algebra-sparql-1-2) Modular transformer to transform a SPARQL 1.2 AST generated by Traqula to SPARQL 1.2 algebra. There is also support for 'non-algebra' entities such as ASK, FROM, etc. to make sure the output contains all relevant information from the query. ## Installation ```bash npm install @traqula/algebra-sparql-1-2 ``` or ```bash yarn add @traqula/algebra-sparql-1-2 ``` ## Import Either through ESM import: ```javascript import { toAst, toAlgebra } from '@traqula/algebra-sparql-1-2'; ``` _or_ CJS require: ```javascript const { toAst, toAlgebra } = require('@traqula/algebra-sparql-1-2'); ``` ## Usage Input for the translation function should be a Traqula AST, by calling [Traqula parser](../parser-sparql-1-2). Algebra operations are modeled as objects of the structure `{ name: string; input: Operation[] }`. The transformation is detailed by [section 18.3 of the SPARQL 1.2 specification](https://www.w3.org/TR/sparql12-query/#translation). The example bellow demonstrates this package usage where we parse a query string and transform it to algebra, from the algebra we will go back to a query string. Note that unlike the AST level, we do not provide [round tripping](../generator-sparql-1-1/README.md#round-tripping-generation) on algebra level. ```typescript import { Parser } from '@traqula/parser-sparql-1-2'; import { Generator } from '@traqula/generator-sparql-1-2'; import { toAlgebra, fromAlgebra } from '@traqula/algebra-sparql-1-2'; // Initialize required variables. const parser = new Parser(); const generator = new Generator(); const query = `SELECT * { ?s ?p ?o }`; const ast = parser.parse(query); const algebra = toAlgebra(ast); const generatedAst = toAst(algebra); const generatedQuery = generator.generate(generatedAst); ``` The algebra transformer for SPARQL 1.2 is a modification of [the SPARQL 1.1 algebra transformer](../algebra-sparql-1-1); therefore, much of the documentation of that transformer holds here too. --- _Source: https://npm.io/package/@traqula/algebra-sparql-1-2 · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._