json-heal

Heal a cut off json string to make it parseable again.

Example

var heal = require('json-heal');

heal('{"foo')
// => '{"foo...":"..."}'

heal('{"foo":{"bar":')
// => '{"foo":{"bar":"..."}}'

You might want to use this in combination with String#slice and JSON.parse to limit the size of user submitted json data:

var input = '{"foo":{"bar":"baz"}}';
var cut = input.slice(0, 5);  // => '{"foo'
var healed = heal(cut);       // => '{"foo...":"..."}'
var obj = JSON.parse(healed); // => {"foo...": "..."}

Installation

$ npm install json-heal

API

heal(str)

Heal str and return a String of parseable JSON. Unfinished syntax will be completed like this, so in most cases you'll see where the cut happened:

• trailing comma: add "..." or "...":"..." depending on whether it's in an array of object
• string: add ..."
• misc: complete true, false, null and unfinished numbers

Kudos

Thanks to @segmentio for letting me publish this private module that I developed while working for them.

License

MIT