Package Exports

json2yaml

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Readme

json2yaml

A command-line utility to convert JSON to YAML (meaning a .json file to a .yml file)

The purpose of this utility is to pretty-print JSON in the human-readable YAML object notation (ignore the misnomer, YAML is not a Markup Language at all).

Installation

npm install -g json2yaml

Note: To use npm and json2yaml you must have installed NodeJS.

Usage

Specify a file:

json2yaml ./example.json > ./example.yml

yaml2json ./example.yml | json2yaml > ./example.yml

Or pipe from stdin:

curl -s http://foobar3000.com/echo/echo.json | json2yaml

wget -qO- http://foobar3000.com/echo/echo.json | json2yaml

Or require:

(function () {
  "use strict";

  var YAML = require('json2yaml')
    , ymlText
    ;

    ymlText = YAML.stringify({
      "foo": "bar"
    , "baz": "corge"
    });

    console.log(ymlText);
}());

Example

So, for all the times you want to turn JSON int YAML (YML):

{ "foo": "bar"
, "baz": [
    "qux"
  , "quxx"
  ]
, "corge": null
, "grault": 1
, "garply": true
, "waldo": "false"
, "fred": "undefined"
}

becomes

---
  foo: "bar"
  baz:
    - "qux"
    - "quxx"
  corge: null
  grault: 1
  garply: true
  waldo: "false"
  fred: "undefined"

Note: In fact, both of those Object Notations qualify as YAML because JSON technically is a proper subset of YAML. That is to say that all proper YAML parsers parse proper JSON.

YAML can use either whitespace and dashes or brackets and commas.

For human readability, the whitespace-based YAML is preferrable. For compression and computer readability, the JSON syntax of YAML is preferrable.

Alias

json2yaml has the following aliases:

jsontoyaml
json2yml
jsontoyml