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notes/node_modules/ldjson-stream/readme.md
Patrick Marsceill b7b0d0d7bf
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2017-03-09 13:16:08 -05:00

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# ldjson-stream
#### streaming line delimited json parser + serializer
[![NPM](https://nodei.co/npm/ldjson-stream.png)](https://nodei.co/npm/ldjson-stream/)
## usage
```
var ldj = require('ldjson-stream')
```
#### ldj.parse()
returns a transform stream that accepts newline delimited json and emits objects
example newline delimited json:
`data.txt`:
```
{"foo": "bar"}
{"hello": "world"}
```
If you want to discard non-valid JSON messages, you can call `ldj.parse({strict: false})`
usage:
```js
fs.createReadStream('data.txt')
.pipe(ldj.parse())
.on('data', function(obj) {
// obj is a javascript object
})
```
#### ldj.serialize()
returns a transform stream that accepts json objects and emits newline delimited json
example usage:
```js
var serialize = ldj.serialize()
serialize.on('data', function(line) {
// line is a line of stringified JSON with a newline delimiter at the end
})
serialize.write({"foo": "bar"})
serialize.end()
```
### license
BSD