@loaders.gl/csv/dist/csv-arrow-loader.js

Framework-independent loader for CSV and DSV table formats

// loaders.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors
import { convertTable, convertBatches } from '@loaders.gl/schema-utils';
import { CSVLoader } from "./csv-loader.js";
export const CSVArrowLoader = {
    ...CSVLoader,
    dataType: null,
    batchType: null,
    parse: async (arrayBuffer, options) => parseCSVToArrow(new TextDecoder().decode(arrayBuffer), options),
    parseText: (text, options) => parseCSVToArrow(text, options),
    parseInBatches: parseCSVToArrowBatches
};
async function parseCSVToArrow(csvText, options) {
    // Apps can call the parse method directly, we so apply default options here
    // const csvOptions = {...CSVArrowLoader.options.csv, ...options?.csv};
    const table = await CSVLoader.parseText(csvText, options);
    return convertTable(table, 'arrow-table');
}
function parseCSVToArrowBatches(asyncIterator, options) {
    const tableIterator = CSVLoader.parseInBatches(asyncIterator, options);
    return convertBatches(tableIterator, 'arrow-table');
}
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