0.0.35 • Published 11 months ago
@datastream/csv v0.0.35
@datastream/csv
Commonly used stream patterns for Web Streams API and NodeJS Streams.
- Dependencies
- Support
- Install
- Streams
- Format
- Parse
Dependencies
csv-rex
: CSV parsing and formatting.
Support
NodeJS | Chrome | Edge | Firefox | Safari | |
---|---|---|---|---|---|
Format | 9.4 | 67 | 79 | 102 | 10 |
Parse | 9.4 | 67 | 79 | 102 | 10 |
Install
npm install @datastream/csv
Streams
Format
- Input:
object
orarray
- Output:
string
Options
From the csv-rex
documentation:
Examples
Basic
import { pipeline } from '@datastream/core'
import { csvFormatStream } from '@datastream/csv'
// or
import csvFormatStream from '@datastream/csv/format'
const csvFormatStreamOptions = {}
const streams = [
// Readable stream ...
csvFormatStream(csvFormatStreamOptions),
// Writable stream ...
]
await pipeline(...streams)
NodeJS: format and save to file
import { createWriteStream } from 'node:fs'
import { pipeline, createReadableStream, createTransformStream } from '@datastream/core'
import { csvParseStream } from '@datastream/csv'
const streams = [
createReadableStream([{...},...]),
createTransformStream(() => {...}),
csvFormatStream({ header:[...] }),
createWriteStream('/tmp/output.csv'),
]
await pipeline(...streams)
Parse
- Input:
string
- Output:
object
orarray
Options
See csv-rex
for options
Examples
Basic
import { pipeline } from '@datastream/core'
import { csvParseStream } from '@datastream/csv'
// or
import csvParseStream from '@datastream/csv/parse'
const csvParseStreamOptions = {}
const streams = [
// Readable stream ...
csvParseStream(csvParseStreamOptions),
// Writable stream ...
]
await pipeline(streams)
NodeJS: Read file and parse
import { createReadStream } from 'node:fs'
import { pipeline, createTransformStream, createWritableStream } from '@datastream/core'
import { csvParseStream } from '@datastream/csv'
const streams = [
createReadStream('/tmp/input.csv'),
csvParseStream({...}),
createTransformStream(() => {...}),
createWritableStream()
]
await pipeline(streams)
Browser: Read <input type="file">
and parse in a WebWorker
Examples
NodeJS
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