Converts some resource URL to a webpack module request.
i Before call
urlToRequest
you need callisUrlRequest
to ensure it is requestable url
const url = "path/to/module.js"; if (loaderUtils.isUrlRequest(url)) { // Logic for requestable url const request = loaderUtils.urlToRequest(url); } else { // Logic for not requestable url }
Simple example:
const url = "path/to/module.js"; const request = loaderUtils.urlToRequest(url); // "./path/to/module.js"
Any URL containing a ~
will be interpreted as a module request. Anything after the ~
will be considered the request path.
const url = "~path/to/module.js"; const request = loaderUtils.urlToRequest(url); // "path/to/module.js"
URLs that are root-relative (start with /
) can be resolved relative to some arbitrary path by using the root
parameter:
const url = "/path/to/module.js"; const root = "./root"; const request = loaderUtils.urlToRequest(url, root); // "./root/path/to/module.js"
To convert a root-relative URL into a module URL, specify a root
value that starts with ~
:
const url = "/path/to/module.js"; const root = "~"; const request = loaderUtils.urlToRequest(url, root); // "path/to/module.js"
Interpolates a filename template using multiple placeholders and/or a regular expression. The template and regular expression are set as query params called name
and regExp
on the current loader's context.
const interpolatedName = loaderUtils.interpolateName( loaderContext, name, options );
The following tokens are replaced in the name
parameter:
[ext]
the extension of the resource[name]
the basename of the resource[path]
the path of the resource relative to the context
query parameter or option.[folder]
the folder the resource is in[query]
the queryof the resource, i.e. ?foo=bar
[contenthash]
the hash of options.content
(Buffer) (by default it's the hex digest of the xxhash64
hash)[<hashType>:contenthash:<digestType>:<length>]
optionally one can configure
hashType
s, i. e. xxhash64
, sha1
, md4
(wasm version), native-md4
(crypto
module version), md5
, sha256
, sha512
digestType
s, i. e. hex
, base26
, base32
, base36
, base49
, base52
, base58
, base62
, base64
, base64safe
length
the length in chars[hash]
the hash of options.content
(Buffer) (by default it's the hex digest of the xxhash64
hash)[<hashType>:hash:<digestType>:<length>]
optionally one can configure
hashType
s, i. e. xxhash64
, sha1
, md4
(wasm version), native-md4
(crypto
module version), md5
, sha256
, sha512
digestType
s, i. e. hex
, base26
, base32
, base36
, base49
, base52
, base58
, base62
, base64
, base64safe
length
the length in chars[N]
the N-th match obtained from matching the current file name against options.regExp
In loader context [hash]
and [contenthash]
are the same, but we recommend using [contenthash]
for avoid misleading.
digestType
with base64safe
don't contain /
, +
and =
symbols.
Examples
// loaderContext.resourcePath = "/absolute/path/to/app/js/javascript.js" loaderUtils.interpolateName(loaderContext, "js/[hash].script.[ext]", { content: ... }); // => js/9473fdd0d880a43c21b7778d34872157.script.js // loaderContext.resourcePath = "/absolute/path/to/app/js/javascript.js" // loaderContext.resourceQuery = "?foo=bar" loaderUtils.interpolateName(loaderContext, "js/[hash].script.[ext][query]", { content: ... }); // => js/9473fdd0d880a43c21b7778d34872157.script.js?foo=bar // loaderContext.resourcePath = "/absolute/path/to/app/js/javascript.js" loaderUtils.interpolateName(loaderContext, "js/[contenthash].script.[ext]", { content: ... }); // => js/9473fdd0d880a43c21b7778d34872157.script.js // loaderContext.resourcePath = "/absolute/path/to/app/page.html" loaderUtils.interpolateName(loaderContext, "html-[hash:6].html", { content: ... }); // => html-9473fd.html // loaderContext.resourcePath = "/absolute/path/to/app/flash.txt" loaderUtils.interpolateName(loaderContext, "[hash]", { content: ... }); // => c31e9820c001c9c4a86bce33ce43b679 // loaderContext.resourcePath = "/absolute/path/to/app/img/image.png" loaderUtils.interpolateName(loaderContext, "[sha512:hash:base64:7].[ext]", { content: ... }); // => 2BKDTjl.png // use sha512 hash instead of xxhash64 and with only 7 chars of base64 // loaderContext.resourcePath = "/absolute/path/to/app/img/myself.png" // loaderContext.query.name = loaderUtils.interpolateName(loaderContext, "picture.png"); // => picture.png // loaderContext.resourcePath = "/absolute/path/to/app/dir/file.png" loaderUtils.interpolateName(loaderContext, "[path][name].[ext]?[hash]", { content: ... }); // => /app/dir/file.png?9473fdd0d880a43c21b7778d34872157 // loaderContext.resourcePath = "/absolute/path/to/app/js/page-home.js" loaderUtils.interpolateName(loaderContext, "script-[1].[ext]", { regExp: "page-(.*)\\.js", content: ... }); // => script-home.js // loaderContext.resourcePath = "/absolute/path/to/app/js/javascript.js" // loaderContext.resourceQuery = "?foo=bar" loaderUtils.interpolateName( loaderContext, (resourcePath, resourceQuery) => { // resourcePath - `/app/js/javascript.js` // resourceQuery - `?foo=bar` return "js/[hash].script.[ext]"; }, { content: ... } ); // => js/9473fdd0d880a43c21b7778d34872157.script.js
const digestString = loaderUtils.getHashDigest( buffer, hashType, digestType, maxLength );
buffer
the content that should be hashedhashType
one of xxhash64
, sha1
, md4
, md5
, sha256
, sha512
or any other node.js supported hash typedigestType
one of hex
, base26
, base32
, base36
, base49
, base52
, base58
, base62
, base64
, base64safe
maxLength
the maximum length in charsMIT (http://www.opensource.org/licenses/mit-license.php)
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