@tpluscode/sparql-builder/lib/index.js

Simple JS library to build SPARQL queries

import { sparql } from '@tpluscode/rdf-string';
import prologue from './partials/prologue.js';
// eslint-disable-next-line no-unused-vars
export default function Builder(type) {
    return {
        type,
        ...prologue(),
        build({ base, prefixes } = {}) {
            const queryResult = this._getTemplateResult().toString({
                base,
                prefixes,
            });
            if (this.prologueResult) {
                return `${this.prologueResult}\n\n${queryResult}`;
            }
            return queryResult;
        },
        _toPartialString(options) {
            let result = this._getTemplateResult();
            if (this.type === 'SELECT') {
                result = sparql `{ ${result} }`;
            }
            return result._toPartialString(options);
        },
    };
}