44 lines
1.3 KiB
JavaScript
44 lines
1.3 KiB
JavaScript
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'use strict';
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const { Readable } = require('stream');
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const JSON2CSVParser = require('./JSON2CSVParser');
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const JSON2CSVAsyncParser = require('./JSON2CSVAsyncParser');
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const JSON2CSVTransform = require('./JSON2CSVTransform');
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const flatten = require('./transforms/flatten');
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const unwind = require('./transforms/unwind');
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module.exports.Parser = JSON2CSVParser;
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module.exports.AsyncParser = JSON2CSVAsyncParser;
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module.exports.Transform = JSON2CSVTransform;
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// Convenience method to keep the API similar to version 3.X
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module.exports.parse = (data, opts) => new JSON2CSVParser(opts).parse(data);
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module.exports.parseAsync = (data, opts, transformOpts) => {
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try {
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if (!(data instanceof Readable)) {
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transformOpts = Object.assign({}, transformOpts, { objectMode: true });
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}
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const asyncParser = new JSON2CSVAsyncParser(opts, transformOpts);
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const promise = asyncParser.promise();
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if (Array.isArray(data)) {
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data.forEach(item => asyncParser.input.push(item));
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asyncParser.input.push(null);
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} else if (data instanceof Readable) {
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asyncParser.fromInput(data);
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} else {
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asyncParser.input.push(data);
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asyncParser.input.push(null);
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}
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return promise;
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} catch (err) {
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return Promise.reject(err);
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}
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};
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module.exports.transforms = {
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flatten,
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unwind,
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};
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