canonical_url

Description:

canonical url

canonical_url #
The UrlCanonicalizer is used for the process of converting an URL into a canonical (normalized) form. It will:

make scheme and host lowercase
remove port if it matches the default (80, 443)
canonicalize path (e.g. /a/../, /a/./)
sort query parameters (default)
use query parameter ordering (optional)
whitelist / blacklist parameters (optional)
remove fragment (optional)

It can also calculate the url relative to a context (e.g. base url + relative link).
Usage #
A simple usage example:
import 'package:canonical_url/canonical_url.dart';

main() {
final urlc = new UrlCanonicalizer(removeFragment: true);

// prints http://example.com/b.txt
print(urlc.canonicalize('http://example.com:80/a/../b.txt'));

// prints https://example.com/abc
print(urlc.canonicalize('https://example.com/abc#xyz'));

// prints http://example.com/api?a=2&b=3&c=1
print(urlc.canonicalize('http://example.com/api?c=1&a=2&b=3'));
}
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