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| let fs = require('fs'); | |
| let CombinedStream = require('combined-stream2'); | |
| let path = require('path'); | |
| let parseStream = require('json-parse-stream'); | |
| let getStreamedDir = (file) => { | |
| let combinedStream = CombinedStream.create(); | |
| let extensions = ['.json']; | |
| if (fs.lstatSync(file).isDirectory()) { | |
| fs.readdirSync(file) | |
| .filter(f => (extensions.indexOf(path.extname(f)) >= 0)) | |
| .forEach(f => { | |
| let fpath = path.join(file, f); | |
| combinedStream.append(fs.createReadStream(fpath).pipe(parseStream())); | |
| }); | |
| } | |
| return combinedStream; | |
| } | |
| } | |
| let s = getStreamedDir('my_folder'); | |
| // does s emit 'data' events? | |
| s.on('data', (data) => { | |
| console.log('data: ', data); | |
| }); |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| let fs = require('fs'); | |
| let CombinedStream = require('combined-stream2'); | |
| let path = require('path'); | |
| let parseStream = require('json-parse-stream'); | |
| let getStreamedDir = (file, extensions) => { | |
| let combinedStream = CombinedStream.create(); | |
| if (fs.lstatSync(file).isDirectory()) { | |
| fs.readdirSync(file) | |
| .filter(f => (extensions.length == 0) || (extensions.indexOf(path.extname(f)) >= 0)) | |
| .forEach(f => { | |
| let fpath = path.join(file, f); | |
| combinedStream.append(fs.createReadStream(fpath)); | |
| }); | |
| } | |
| return combinedStream; | |
| } | |
| } | |
| let = getStreamedDir('my_folder', ['.json']).pipe(parseStream()); | |
| /* | |
| ... the following error happens only when I do .pipe(parseStream()); | |
| Unhandled rejection TypeError: Cannot read property 'mode' of undefined | |
| at Stream.write (file:///home/vic/project.js:125137:33) | |
| at Stream.stream.write (file:///home/vic/project.js:125535:11) | |
| at Stream.ondata (stream.js:31:26) | |
| at emitOne (events.js:96:13) | |
| at Stream.emit (events.js:188:7) | |
| at drain (file:///home/vic/project.js:125545:16) | |
| at Stream.stream.queue.stream.push (file:///home/vic/project.js:125551:5) | |
| at emit (file:///home/vic/project.js:125486:12) | |
| at Array.t_base (file:///home/vic/project.js:125303:24) | |
| at Stream.write (file:///home/vic/project.js:125286:18) | |
| at Stream.stream.write (file:///home/vic/project.js:125535:11) | |
| at emitOne (events.js:96:13) | |
| at Stream.emit (events.js:188:7) | |
| at Stream.stream.write (file:///home/vic/project.js:124694:12) | |
| at CombinedStream.ondata (_stream_readable.js:555:20) | |
| at emitOne (events.js:96:13) | |
| at CombinedStream.emit (events.js:188:7) | |
| at readableAddChunk (_stream_readable.js:176:18) | |
| at CombinedStream.Readable.push (_stream_readable.js:134:10) | |
| at file:///home/vic/project.js:110764:17 | |
| at tryCatcher (file:///home/vic/project.js:4053:23) | |
| Unhandled rejection TypeError: Cannot read property 'mode' of undefined | |
| at Stream.write (file:///home/vic/project.js:125137:33) | |
| at Stream.stream.write (file:///home/vic/project.js:125535:11) | |
| at Stream.ondata (stream.js:31:26) | |
| at emitOne (events.js:96:13) | |
| at Stream.emit (events.js:188:7) | |
| at drain (file:///home/vic/project.js:125545:16) | |
| at Stream.stream.queue.stream.push (file:///home/vic/project.js:125551:5) | |
| at emit (file:///home/vic/project.js:125486:12) | |
| at Array.t_base (file:///home/vic/project.js:125303:24) | |
| at Stream.write (file:///home/vic/project.js:125286:18) | |
| at Stream.stream.write (file:///home/vic/project.js:125535:11) | |
| at emitOne (events.js:96:13) | |
| at Stream.emit (events.js:188:7) | |
| at Stream.stream.write (file:///home/vic/project.js:124694:12) | |
| at CombinedStream.ondata (_stream_readable.js:555:20) | |
| at emitOne (events.js:96:13) | |
| at CombinedStream.emit (events.js:188:7) | |
| at readableAddChunk (_stream_readable.js:176:18) | |
| at CombinedStream.Readable.push (_stream_readable.js:134:10) | |
| at file:///home/vic/project.js:110764:17 | |
| at tryCatcher (file:///home/vic/project.js:4053:23) | |
| */ |
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