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# parseurl
[](http://badge.fury.io/js/parseurl)
[](https://travis-ci.org/expressjs/parseurl)
[](https://coveralls.io/r/expressjs/parseurl)
Parse a URL with memoization.
## Install
```bash
$ npm install parseurl
```
## API
```js
var parseurl = require('parseurl')
```
### parseurl(req)
Parse the URL of the given request object (looks at the `req.url` property)
and return the result. The result is the same as `url.parse` in Node.js core.
Calling this function multiple times on the same `req` where `req.url` does
not change will return a cached parsed object, rather than parsing again.
### parseurl.original(req)
Parse the original URL of the given request object and return the result.
This works by trying to parse `req.originalUrl` if it is a string, otherwise
parses `req.url`. The result is the same as `url.parse` in Node.js core.
Calling this function multiple times on the same `req` where `req.originalUrl`
does not change will return a cached parsed object, rather than parsing again.
## Benchmark
```bash
$ npm run-script bench
> parseurl@1.3.0 bench nodejs-parseurl
> node benchmark/index.js
> node benchmark/fullurl.js
Parsing URL "http://localhost:8888/foo/bar?user=tj&pet=fluffy"
1 test completed.
2 tests completed.
3 tests completed.
fasturl x 1,290,780 ops/sec ±0.46% (195 runs sampled)
nativeurl x 56,401 ops/sec ±0.22% (196 runs sampled)
parseurl x 55,231 ops/sec ±0.22% (194 runs sampled)
> node benchmark/pathquery.js
Parsing URL "/foo/bar?user=tj&pet=fluffy"
1 test completed.
2 tests completed.
3 tests completed.
fasturl x 1,986,668 ops/sec ±0.27% (190 runs sampled)
nativeurl x 98,740 ops/sec ±0.21% (195 runs sampled)
parseurl x 2,628,171 ops/sec ±0.36% (195 runs sampled)
> node benchmark/samerequest.js
Parsing URL "/foo/bar?user=tj&pet=fluffy" on same request object
1 test completed.
2 tests completed.
3 tests completed.
fasturl x 2,184,468 ops/sec ±0.40% (194 runs sampled)
nativeurl x 99,437 ops/sec ±0.71% (194 runs sampled)
parseurl x 10,498,005 ops/sec ±0.61% (186 runs sampled)
> node benchmark/simplepath.js
Parsing URL "/foo/bar"
1 test completed.
2 tests completed.
3 tests completed.
fasturl x 4,535,825 ops/sec ±0.27% (191 runs sampled)
nativeurl x 98,769 ops/sec ±0.54% (191 runs sampled)
parseurl x 4,164,865 ops/sec ±0.34% (192 runs sampled)
> node benchmark/slash.js
Parsing URL "/"
1 test completed.
2 tests completed.
3 tests completed.
fasturl x 4,908,405 ops/sec ±0.42% (191 runs sampled)
nativeurl x 100,945 ops/sec ±0.59% (188 runs sampled)
parseurl x 4,333,208 ops/sec ±0.27% (194 runs sampled)
```
## License
[MIT](LICENSE)
|
