jwalk provides an easy way to inspect the object tree created by a JSON file via the command line. The interface provided is a lot like a typical shell, with familiar commands like cd and ls.

Installation

More documentation (and fewer bugs) coming soon. In the meantime, install it via npm:

npm install -g jwalk

Running

And then run it like this:

jwalk somefile.json

It can also handle gzipped files. If the extension is .gz, it will decompress the JSON data automatically.

jwalk somefile.json.gz

Possible Commands

Given the following json file

{
  "name": "jwalk",
  "version": "0.0.4",
  "description": "command-line json inspector",
  "preferGlobal": "true",
  "repositories": {
    "type": "git",
    "url": "http://github.com/nkohari/jwalk"
  },
  "bin": {
    "jwalk": "bin/jwalk"
  },
  "dependencies": {
    "coffee-script": "1.4.0",
    "colors": "0.6.0-1",
    "filesize": "1.6.6",
    "underscore": "1.4.2"
  },
  "engine": "node >= 0.8.x"
}

Help

Shows this help message

jwalk obj{8} / $ help

cd navigates through nodes in the tree
clear clears the screen
cls clears the screen
exit quit jwalk
help shows this help message
keys examines the keys of an object node
ls examines a single node
quit quit jwalk

List

Examines the current node

jwalk obj{8} / $ ls
{ name: 'jwalk',
  version: '0.0.4',
  description: 'command-line json inspector',
  preferGlobal: 'true',
  repositories: 
   { type: 'git',
     url: 'http://github.com/nkohari/jwalk' },
  bin: { jwalk: 'bin/jwalk' },
  dependencies: 
   { 'coffee-script': '1.4.0',
     colors: '0.6.0-1',
     filesize: '1.6.6',
     underscore: '1.4.2' },
  engine: 'node >= 0.8.x' }

Change Directory

Allows navigation through the JSON tree. Note 'cd' does support autocomplete by pressing the tab key.

jwalk obj{8} / $ cd dependencies
jwalk obj{4} /dependencies $ ls
{ 'coffee-script': '1.4.0',
  colors: '0.6.0-1',
  filesize: '1.6.6',
  underscore: '1.4.2' }

Clear

Clears the screen

jwalk obj{8} / $ clear

or

jwalk obj{8} / $ cls

Keys

Examines the keys of an object node

jwalk obj{8} / $ keys
[ 'name',
  'version',
  'description',
  'preferGlobal',
  'repositories',
  'bin',
  'dependencies',
  'engine' ]

Quit

Exits the jwalk application

jwalk obj{8} / $ exit

or

jwalk obj{8} / $ quit

Preferences File

You can create a JSON file at ~/.jwalk to define preferences. Right now, all it supports is defining aliases for commands, like so:

{
  "aliases": {
    "l": "ls"
  }
}

Contributing

Bug reports and pull requests welcome!