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49 lines
1.5 KiB
Markdown
49 lines
1.5 KiB
Markdown
7 months ago
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# minipass-collect
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A Minipass stream that collects all the data into a single chunk
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Note that this buffers ALL data written to it, so it's only good for
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situations where you are sure the entire stream fits in memory.
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Note: this is primarily useful for the `Collect.PassThrough` class, since
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Minipass streams already have a `.collect()` method which returns a promise
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that resolves to the array of chunks, and a `.concat()` method that returns
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the data concatenated into a single Buffer or String.
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## USAGE
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```js
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const Collect = require('minipass-collect')
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const collector = new Collect()
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collector.on('data', allTheData => {
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console.log('all the data!', allTheData)
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})
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someSourceOfData.pipe(collector)
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// note that you can also simply do:
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someSourceOfData.pipe(new Minipass()).concat().then(data => ...)
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// or even, if someSourceOfData is a Minipass:
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someSourceOfData.concat().then(data => ...)
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// but you might prefer to have it stream-shaped rather than
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// Promise-shaped in some scenarios.
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```
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If you want to collect the data, but _also_ act as a passthrough stream,
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then use `Collect.PassThrough` instead (for example to memoize streaming
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responses), and listen on the `collect` event.
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```js
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const Collect = require('minipass-collect')
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const collector = new Collect.PassThrough()
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collector.on('collect', allTheData => {
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console.log('all the data!', allTheData)
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})
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someSourceOfData.pipe(collector).pipe(someOtherStream)
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```
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All [minipass options](http://npm.im/minipass) are supported.
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