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      1 # parseurl
      2 
      3 [![NPM Version][npm-version-image]][npm-url]
      4 [![NPM Downloads][npm-downloads-image]][npm-url]
      5 [![Node.js Version][node-image]][node-url]
      6 [![Build Status][travis-image]][travis-url]
      7 [![Test Coverage][coveralls-image]][coveralls-url]
      8 
      9 Parse a URL with memoization.
     10 
     11 ## Install
     12 
     13 This is a [Node.js](https://nodejs.org/en/) module available through the
     14 [npm registry](https://www.npmjs.com/). Installation is done using the
     15 [`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
     16 
     17 ```sh
     18 $ npm install parseurl
     19 ```
     20 
     21 ## API
     22 
     23 ```js
     24 var parseurl = require('parseurl')
     25 ```
     26 
     27 ### parseurl(req)
     28 
     29 Parse the URL of the given request object (looks at the `req.url` property)
     30 and return the result. The result is the same as `url.parse` in Node.js core.
     31 Calling this function multiple times on the same `req` where `req.url` does
     32 not change will return a cached parsed object, rather than parsing again.
     33 
     34 ### parseurl.original(req)
     35 
     36 Parse the original URL of the given request object and return the result.
     37 This works by trying to parse `req.originalUrl` if it is a string, otherwise
     38 parses `req.url`. The result is the same as `url.parse` in Node.js core.
     39 Calling this function multiple times on the same `req` where `req.originalUrl`
     40 does not change will return a cached parsed object, rather than parsing again.
     41 
     42 ## Benchmark
     43 
     44 ```bash
     45 $ npm run-script bench
     46 
     47 > parseurl@1.3.3 bench nodejs-parseurl
     48 > node benchmark/index.js
     49 
     50   http_parser@2.8.0
     51   node@10.6.0
     52   v8@6.7.288.46-node.13
     53   uv@1.21.0
     54   zlib@1.2.11
     55   ares@1.14.0
     56   modules@64
     57   nghttp2@1.32.0
     58   napi@3
     59   openssl@1.1.0h
     60   icu@61.1
     61   unicode@10.0
     62   cldr@33.0
     63   tz@2018c
     64 
     65 > node benchmark/fullurl.js
     66 
     67   Parsing URL "http://localhost:8888/foo/bar?user=tj&pet=fluffy"
     68 
     69   4 tests completed.
     70 
     71   fasturl            x 2,207,842 ops/sec ±3.76% (184 runs sampled)
     72   nativeurl - legacy x   507,180 ops/sec ±0.82% (191 runs sampled)
     73   nativeurl - whatwg x   290,044 ops/sec ±1.96% (189 runs sampled)
     74   parseurl           x   488,907 ops/sec ±2.13% (192 runs sampled)
     75 
     76 > node benchmark/pathquery.js
     77 
     78   Parsing URL "/foo/bar?user=tj&pet=fluffy"
     79 
     80   4 tests completed.
     81 
     82   fasturl            x 3,812,564 ops/sec ±3.15% (188 runs sampled)
     83   nativeurl - legacy x 2,651,631 ops/sec ±1.68% (189 runs sampled)
     84   nativeurl - whatwg x   161,837 ops/sec ±2.26% (189 runs sampled)
     85   parseurl           x 4,166,338 ops/sec ±2.23% (184 runs sampled)
     86 
     87 > node benchmark/samerequest.js
     88 
     89   Parsing URL "/foo/bar?user=tj&pet=fluffy" on same request object
     90 
     91   4 tests completed.
     92 
     93   fasturl            x  3,821,651 ops/sec ±2.42% (185 runs sampled)
     94   nativeurl - legacy x  2,651,162 ops/sec ±1.90% (187 runs sampled)
     95   nativeurl - whatwg x    175,166 ops/sec ±1.44% (188 runs sampled)
     96   parseurl           x 14,912,606 ops/sec ±3.59% (183 runs sampled)
     97 
     98 > node benchmark/simplepath.js
     99 
    100   Parsing URL "/foo/bar"
    101 
    102   4 tests completed.
    103 
    104   fasturl            x 12,421,765 ops/sec ±2.04% (191 runs sampled)
    105   nativeurl - legacy x  7,546,036 ops/sec ±1.41% (188 runs sampled)
    106   nativeurl - whatwg x    198,843 ops/sec ±1.83% (189 runs sampled)
    107   parseurl           x 24,244,006 ops/sec ±0.51% (194 runs sampled)
    108 
    109 > node benchmark/slash.js
    110 
    111   Parsing URL "/"
    112 
    113   4 tests completed.
    114 
    115   fasturl            x 17,159,456 ops/sec ±3.25% (188 runs sampled)
    116   nativeurl - legacy x 11,635,097 ops/sec ±3.79% (184 runs sampled)
    117   nativeurl - whatwg x    240,693 ops/sec ±0.83% (189 runs sampled)
    118   parseurl           x 42,279,067 ops/sec ±0.55% (190 runs sampled)
    119 ```
    120 
    121 ## License
    122 
    123   [MIT](LICENSE)
    124 
    125 [coveralls-image]: https://badgen.net/coveralls/c/github/pillarjs/parseurl/master
    126 [coveralls-url]: https://coveralls.io/r/pillarjs/parseurl?branch=master
    127 [node-image]: https://badgen.net/npm/node/parseurl
    128 [node-url]: https://nodejs.org/en/download
    129 [npm-downloads-image]: https://badgen.net/npm/dm/parseurl
    130 [npm-url]: https://npmjs.org/package/parseurl
    131 [npm-version-image]: https://badgen.net/npm/v/parseurl
    132 [travis-image]: https://badgen.net/travis/pillarjs/parseurl/master
    133 [travis-url]: https://travis-ci.org/pillarjs/parseurl