json-csv/src/index.js

Easily convert JSON array to CSV in Node.JS via buffered or streaming.

/* eslint-disable promise/no-callback-in-promise */
const Exporter = require('./exporter')

module.exports = {
	Exporter,
	stream(options = {}, next) {
		options = { ...options, buffered: false }

		let transformer = new Exporter(options).stream()
		if (typeof next === 'function') { return next(null, transformer) }

		return transformer
	},
	buffered(data, options = {}, next) {
		options = { ...options, buffered: true }

		let promise = new Exporter(options).buffered(data)
		if (typeof next === 'function') {
			return promise
				// eslint-disable-next-line promise/always-return
				.then((result) => {
					next(null, result)
				})

				.catch((err) => { next(err) })
		}

		return promise
	},

	// legacy
	csv(options = {}) {
		options = { ...options, buffered: false }
		return new Exporter(options).stream()
	},
	csvBuffered(data, options = {}, done) {
		options = { ...options, buffered: true }
		new Exporter(options).buffered(data)
			.then((result) => { done(null, result) })
			.catch((err) => { done(err) })
	}
}