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53 lines
1.5 KiB
Markdown
53 lines
1.5 KiB
Markdown
# end-of-stream
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A node module that calls a callback when a readable/writable/duplex stream has completed or failed.
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npm install end-of-stream
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## Usage
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Simply pass a stream and a callback to the `eos`.
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Both legacy streams, streams2 and stream3 are supported.
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``` js
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var eos = require('end-of-stream');
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eos(readableStream, function(err) {
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// this will be set to the stream instance
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if (err) return console.log('stream had an error or closed early');
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console.log('stream has ended', this === readableStream);
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});
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eos(writableStream, function(err) {
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if (err) return console.log('stream had an error or closed early');
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console.log('stream has finished', this === writableStream);
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});
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eos(duplexStream, function(err) {
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if (err) return console.log('stream had an error or closed early');
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console.log('stream has ended and finished', this === duplexStream);
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});
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eos(duplexStream, {readable:false}, function(err) {
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if (err) return console.log('stream had an error or closed early');
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console.log('stream has finished but might still be readable');
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});
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eos(duplexStream, {writable:false}, function(err) {
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if (err) return console.log('stream had an error or closed early');
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console.log('stream has ended but might still be writable');
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});
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eos(readableStream, {error:false}, function(err) {
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// do not treat emit('error', err) as a end-of-stream
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});
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```
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## License
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MIT
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## Related
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`end-of-stream` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.
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