https://github.com/thlorenz/ndjson-aggregator

Aggregates ndjson output into one JSON object, keyed by a given property.
https://github.com/thlorenz/ndjson-aggregator

Last synced: 13 days ago
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Aggregates ndjson output into one JSON object, keyed by a given property.

• Host: GitHub
• URL: https://github.com/thlorenz/ndjson-aggregator
• Owner: thlorenz
• License: mit
• Created: 2015-05-12T14:55:46.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2015-05-12T16:03:15.000Z (over 9 years ago)
• Last Synced: 2024-12-10T08:27:11.136Z (about 1 month ago)
• Language: JavaScript
• Homepage:
• Size: 141 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# ndjson-aggregator [![build status](https://secure.travis-ci.org/thlorenz/ndjson-aggregator.png)](http://travis-ci.org/thlorenz/ndjson-aggregator)

[![testling badge](https://ci.testling.com/thlorenz/ndjson-aggregator.png)](https://ci.testling.com/thlorenz/ndjson-aggregator)

Aggregates ndjson output into one JSON object, keyed by a given property.

```js

var aggregate = require('ndjson-aggregator')

var lines = [

    '{"name":"buffers/buffer-creation","config":{"type":"fast","len":10,"n":1024},"time":"5400.10125"}'

  , '{"name":"buffers/buffer-creation","config":{"type":"fast","len":1024,"n":1024},"time":"2097.43265"}'

  , '{"name":"buffers/buffer-deletion","config":{"type":"fast","len":10,"n":1024},"time":"5400.10125"}'

  , '{"name":"buffers/buffer-deletion","config":{"type":"fast","len":1024,"n":1024},"time":"2097.43265"}'

  , '{"config":{"type":"fast","len":10,"n":1024},"time":"5400.10125"}'

  , '{"config":{"type":"fast","len":1024,"n":1024},"time":"2097.43265"}'

]

var res = aggregate(lines, 'name')

console.log(res)

```

```

{ 'buffers/buffer-creation':

   [ { name: 'buffers/buffer-creation',

       config: { type: 'fast', len: 10, n: 1024 },

       time: '5400.10125' },

     { name: 'buffers/buffer-creation',

       config: { type: 'fast', len: 1024, n: 1024 },

       time: '2097.43265' } ],

  'buffers/buffer-deletion':

   [ { name: 'buffers/buffer-deletion',

       config: { type: 'fast', len: 10, n: 1024 },

       time: '5400.10125' },

     { name: 'buffers/buffer-deletion',

       config: { type: 'fast', len: 1024, n: 1024 },

       time: '2097.43265' } ],

  'ENOEXIST name':

   [ { config: { type: 'fast', len: 10, n: 1024 },

       time: '5400.10125' },

     { config: { type: 'fast', len: 1024, n: 1024 },

       time: '2097.43265' } ] }

```

## Installation

    npm install ndjson-aggregator

## CLI

A cli tool name `ndja` will be in your path if you install this package globally.

It takes a stream of ndjson data from *stdin* and outputs aggregated JSON to *stdout*.

```sh

ndja  < in-ndjson.data > out.json 

## Example

ndja name < examples/ndjson.data > out.json 

```

## API



















aggregate(lines, prop) → {Object}









Aggregates lines of new line delimited JSON into

one JavaScript object keyed by a property if it is supplied.

If the key property is not supplied all ndjson lines will just be

aggregated into one Array.



Parameters:


Name

Type

Argument

Description

lines

Array.<String>

ndjson lines (each line must be parseable JSON)


prop

String

<optional>


the property to key the aggregated JSON by




Source:





index.js

, 

lineno 24







Returns:



ndjson aggregated into one JavaScript Object







Type





Object











*generated with [docme](https://github.com/thlorenz/docme)*



## License

MIT