@iwsio/json-csv-node/dist/string-writer.cjs

ESM/CJS module that easily converts JSON to CSV. This package supports streaming and buffered conversion to CSV.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.StringWriter = void 0;
const stream_1 = require("stream");
const string_decoder_1 = require("string_decoder");
/**
 * This is a writable stream that encodes data to an internal buffered string. It's pulled from Node14 docs and used as a test utility here.
 * Ex:
 * ```
 * const writer = new StringWriter({defaultEncoding: 'utf8'})
 * Readable.from(['1', '2', '3']).pipe(writer).finish(() => { console.log(writer.data) })
 * '123'
 * ```
 * See: https://nodejs.org/docs/latest-v14.x/api/stream.html#stream_decoding_buffers_in_a_writable_stream
 */
class StringWriter extends stream_1.Writable {
    constructor(options) {
        var _a;
        super(options);
        this._decoder = new string_decoder_1.StringDecoder((_a = options === null || options === void 0 ? void 0 : options.defaultEncoding) !== null && _a !== void 0 ? _a : 'utf8');
        this.data = '';
    }
    _write(chunk, encoding, callback) {
        if (encoding != null) {
            chunk = this._decoder.write(chunk);
        }
        this.data += chunk;
        callback();
    }
    _final(callback) {
        this.data += this._decoder.end();
        callback();
    }
}
exports.default = StringWriter;
exports.StringWriter = StringWriter;