Validator functions for many types of input, intended for use with express
npm install purifypurify
======




The library provides a number of battle tested validation functions. Each returns the
value supplied or a defaultValue. Mostly, you can leave defaultValue empty, which
will cause purify to return undefined in case the value doesn't pass validation.
Usage
-----
The library can be installed by simply installing purify from npm and can be used
body on node with require('purify') or as a self-contained UMD browser bundle that
can be used directly in a script tag as follows:
Example
-------
``javascript
var app = express(),
purify = require('purify');
app.get('/:userId', function (req, res, next) {
var userId = purify.positiveInteger(req.param('userId')),
force = purify.boolean(req.param('force'), true);
if (userId) {
// ...
} else {
res.send(400);
}
});
`
API
---
* .email(rawValue, defaultValue).emailIdn(rawValue, defaultValue)
* - Returns e-mail with non-punycoded form regardless of input..domainName(rawValue, defaultValue)
* .domainNameIdn(rawValue, defaultValue)
* - Returns domain in non-punycoded form regardless of input..url(rawValue, defaultValue)
* .urlWithLocalhost(rawValue, defaultValue)
*
* .integer(rawValue, defaultValue).integerInRange(rawValue, lower, upper, defaultValue)
* .positiveInteger(rawValue, defaultValue)
* .positiveIntegerOrZero(rawValue, defaultValue)
* .float(rawValue, defaultValue)
* .positiveFloat(rawValue, defaultValue)
* .positiveFloatOrZero(rawValue, defaultValue)
*
* .nonEmptyVisibleUnicode(rawValue, defaultValue).visibleUnicode(rawValue, defaultValue)
* .nonEmptyPrintableUnicode(rawValue, defaultValue)
* .printableUnicode(rawValue, defaultValue)
* .nonEmptyVisibleAscii(rawValue, defaultValue)
* .visibleAscii(rawValue, defaultValue)
* .nonEmptyPrintableAscii(rawValue, defaultValue)
* .printableAscii(rawValue, defaultValue)
*
* .alphaNumeric(rawValue, defaultValue).nonEmptyAlphaNumeric(rawValue, defaultValue)
* .alphaNumericWithDot(rawValue, defaultValue)
*
* .uuid(rawValue, defaultValue).upperCaseUuid(rawValue, defaultValue)
* .lowerCaseUuid(rawValue, defaultValue)
*
* .json(rawValue, defaultValue)`